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accesskey="g"><span>Wikidata item</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Chess tactic</div> <p>In <a href="/wiki/Chess" title="Chess">chess</a>, an <b>X-ray</b> or <b>X-ray attack</b> is a <a href="/wiki/Chess_tactic" title="Chess tactic">tactic</a> where a <dfn><a href="/wiki/Glossary_of_chess#piece" title="Glossary of chess"><span title="See entry at: Glossary of chess § piece" style="color:inherit;" class="glossary-link">piece</span></a></dfn> indirectly controls a square from the other side of an intervening piece. Generally, a piece performing an X-ray either: </p> <ul><li>effects a <a href="/wiki/Skewer_(chess)" title="Skewer (chess)">skewer</a>,<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></li> <li>indirectly attacks an enemy piece through another piece or pieces, or</li> <li>defends a friendly piece through an enemy piece.</li></ul> <style data-mw-deduplicate="TemplateStyles:r1141322084">@media all and (max-width:720px){.mw-parser-output .tocleft{width:100%!important}}@media all and (min-width:720px){.mw-parser-output .tocleft{float:left;clear:left;width:auto;margin:0 1em 0.5em 0}body.skin-vector-2022 .mw-parser-output .tocleft{margin:0}.mw-parser-output .tocleft-clear-both{clear:both}.mw-parser-output .tocleft-clear-none{clear:none}}</style><div class="tocleft" style=""><meta property="mw:PageProp/toc" /></div><style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1097430093">@media(min-width:720px){.mw-parser-output .algebraic-notation-toc{float:left}}</style><div role="note" class="side-box metadata side-box-left algebraic-notation algebraic-notation-toc"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style> <div class="side-box-flex"> <div class="side-box-text plainlist">This article uses <a href="/wiki/Algebraic_notation_(chess)" title="Algebraic notation (chess)">algebraic notation</a> to describe chess moves.</div></div> </div><div style="clear:left;" class=""></div> <div class="mw-heading mw-heading2"><h2 id="Examples">Examples</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=X-ray_(chess)&action=edit&section=1" title="Edit section: Examples"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table align="right" border="0" cellpadding="1" cellspacing="0"> <tbody><tr valign="top"> <td> <div class="thumb noviewer tright"><div class="center" style="line-height:130%;margin:0 auto;max-width:222px"> </div><div class="thumbinner" style="width:214px"><table cellpadding="0" cellspacing="0" style="font-size:88%;border:1px #c8ccd1 solid;padding:0;margin:auto"><tbody><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td><td colspan="8" rowspan="8" style="padding:0;vertical-align:inherit"><div class="chess-board notheme" style="position:relative"><span class="notpageimage" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/176px-Chessboard480.svg.png" decoding="async" width="176" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/264px-Chessboard480.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/352px-Chessboard480.svg.png 2x" data-file-width="480" data-file-height="480" /></span></span><div style="position:absolute;z-index:3;top:0px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a8 black rook"><img alt="a8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c8 black bishop"><img alt="c8 black bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/22px-Chess_bdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/33px-Chess_bdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/44px-Chess_bdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d8 black queen"><img alt="d8 black queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/22px-Chess_qdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/33px-Chess_qdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/44px-Chess_qdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e8 black rook"><img alt="e8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g8 black king"><img alt="g8 black king" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/22px-Chess_kdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/33px-Chess_kdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/44px-Chess_kdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a7 black pawn"><img alt="a7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b7 black pawn"><img alt="b7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c7 black pawn"><img alt="c7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f7 black pawn"><img alt="f7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g7 black bishop"><img alt="g7 black bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/22px-Chess_bdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/33px-Chess_bdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/44px-Chess_bdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h7 black pawn"><img alt="h7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d6 black pawn"><img alt="d6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f6 black knight"><img alt="f6 black knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/22px-Chess_ndt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/33px-Chess_ndt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/44px-Chess_ndt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g6 black pawn"><img alt="g6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d5 white pawn"><img alt="d5 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e5 black pawn"><img alt="e5 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c4 white pawn"><img alt="c4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d4 black knight"><img alt="d4 black knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/22px-Chess_ndt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/33px-Chess_ndt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/44px-Chess_ndt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e4 white pawn"><img alt="e4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a3 white pawn"><img alt="a3 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c3 white knight"><img alt="c3 white knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/22px-Chess_nlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/33px-Chess_nlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/44px-Chess_nlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e3 white bishop"><img alt="e3 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f3 white knight"><img alt="f3 white knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/22px-Chess_nlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/33px-Chess_nlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/44px-Chess_nlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b2 white pawn"><img alt="b2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e2 white bishop"><img alt="e2 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f2 white pawn"><img alt="f2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g2 white pawn"><img alt="g2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h2 white pawn"><img alt="h2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a1 white rook"><img alt="a1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d1 white queen"><img alt="d1 white queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/22px-Chess_qlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/33px-Chess_qlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/44px-Chess_qlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f1 white rook"><img alt="f1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g1 white king"><img alt="g1 white king" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/22px-Chess_klt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/33px-Chess_klt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/44px-Chess_klt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div></div></td><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td></tr><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr></tbody></table><div class="thumbcaption">Position arising from <a href="/wiki/Black_Knights%27_Tango" title="Black Knights' Tango">Black Knights' Tango</a>: Black's rook X-rays White's pawn on e4. </div></div></div> </td> <td> <div class="thumb noviewer tright"><div class="center" style="line-height:130%;margin:0 auto;max-width:222px"> </div><div class="thumbinner" style="width:214px"><table cellpadding="0" cellspacing="0" style="font-size:88%;border:1px #c8ccd1 solid;padding:0;margin:auto"><tbody><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td><td colspan="8" rowspan="8" style="padding:0;vertical-align:inherit"><div class="chess-board notheme" style="position:relative"><span class="notpageimage" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/176px-Chessboard480.svg.png" decoding="async" width="176" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/264px-Chessboard480.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/352px-Chessboard480.svg.png 2x" data-file-width="480" data-file-height="480" /></span></span><div style="position:absolute;z-index:3;top:0px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b8 black rook"><img alt="b8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c8 black bishop"><img alt="c8 black bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/22px-Chess_bdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/33px-Chess_bdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/44px-Chess_bdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d8 black queen"><img alt="d8 black queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/22px-Chess_qdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/33px-Chess_qdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/44px-Chess_qdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f8 black rook"><img alt="f8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h8 black king"><img alt="h8 black king" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/22px-Chess_kdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/33px-Chess_kdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/44px-Chess_kdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f7 black pawn"><img alt="f7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h7 black pawn"><img alt="h7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c6 black knight"><img alt="c6 black knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/22px-Chess_ndt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/33px-Chess_ndt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/44px-Chess_ndt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d6 black pawn"><img alt="d6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g6 black pawn"><img alt="g6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a5 black pawn"><img alt="a5 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d5 white knight"><img alt="d5 white knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/22px-Chess_nlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/33px-Chess_nlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/44px-Chess_nlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a4 white rook"><img alt="a4 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c4 white bishop"><img alt="c4 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e4 white pawn"><img alt="e4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f4 white pawn"><img alt="f4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h4 black bishop"><img alt="h4 black bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/22px-Chess_bdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/33px-Chess_bdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/44px-Chess_bdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b3 white pawn"><img alt="b3 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c3 white pawn"><img alt="c3 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e3 white knight"><img alt="e3 white knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/22px-Chess_nlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/33px-Chess_nlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/44px-Chess_nlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d1 white queen"><img alt="d1 white queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/22px-Chess_qlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/33px-Chess_qlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/44px-Chess_qlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f1 white king"><img alt="f1 white king" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/22px-Chess_klt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/33px-Chess_klt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/44px-Chess_klt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h1 white rook"><img alt="h1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div></div></td><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td></tr><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr></tbody></table><div class="thumbcaption">Position after 21...Bh4+ 22.Kf1; after 22...f5, Black's rook on f8 X-rays White's king on f1. </div></div></div> </td></tr></tbody></table> <p>The second usage is seen in the first diagram position, which arises from the <a href="/wiki/Black_Knights%27_Tango" title="Black Knights' Tango">Black Knights' Tango</a> opening after 1.d4 Nf6 2.c4 Nc6 3.Nf3 e6 4.a3 d6 5.Nc3 g6<a href="/wiki/Chess_annotation_symbols#!?" title="Chess annotation symbols">!?</a> 6.e4 Bg7 7.Be2 0-0 8.0-0 Re8 9.Be3 e5 10.d5 Nd4<a href="/wiki/Chess_annotation_symbols#!" title="Chess annotation symbols">!</a> Authors <a href="/wiki/Richard_Palliser" title="Richard Palliser">Richard Palliser</a> and Georgi Orlov, in their respective books on that opening, both note that <a href="/wiki/White_and_Black_in_chess" title="White and Black in chess">Black's</a> <a href="/wiki/Rook_(chess)" title="Rook (chess)">rook</a> on e8 "X-rays" <a href="/wiki/White_and_Black_in_chess" title="White and Black in chess">White's</a> e-pawn through Black's own <a href="/wiki/Pawn_(chess)" title="Pawn (chess)">pawn</a> on e5. If 11.Nxd4 exd4 12.Bxd4 Nxe4 13.Nxe4 Rxe4.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> The identical position is reached, except that White has not played a2–a3, in the <a href="/wiki/King%27s_Indian_Defense" class="mw-redirect" title="King's Indian Defense">King's Indian Defense</a> after 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6. Be2 e5 7.0-0 Nc6 8.Be3 Re8 9.d5 Nd4!<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>Of the second diagram position, arising from the <a href="/wiki/Sicilian_Defense#Sveshnikov_Variation" class="mw-redirect" title="Sicilian Defense">Sveshnikov Variation</a> of the <a href="/wiki/Sicilian_Defense" class="mw-redirect" title="Sicilian Defense">Sicilian Defense</a>, <a href="/wiki/Atanas_Kolev" title="Atanas Kolev">Atanas Kolev</a> and Trajko Nedev observe, "On f1 the <a href="/wiki/King_(chess)" title="King (chess)">king</a> is X-rayed by the f8-rook". They analyze the possible continuation 22...f5 23.exf5 Bxf5 24.Nxf5 Rxf5 25.Qg4 Bg5 (exploiting the <a href="/wiki/Pin_(chess)" title="Pin (chess)">pin</a> along the f-file) 26.Kg2<a href="/wiki/Chess_annotation_symbols#?" title="Chess annotation symbols">?</a> Bxf4 27.Nxf4 Rg5 28.Nxg6+ Kg7 and White resigned in Delchev–Kotanjian, Kusadasi 2006.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </p> <div style="clear:both;" class=""></div> <table align="right" border="0" cellpadding="1" cellspacing="0"> <tbody><tr valign="top"> <td> <div class="thumb noviewer tright"><div class="center" style="line-height:130%;margin:0 auto;max-width:222px">Krasenkow vs. Seirawan </div><div class="thumbinner" style="width:214px"><table cellpadding="0" cellspacing="0" style="font-size:88%;border:1px #c8ccd1 solid;padding:0;margin:auto"><tbody><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td><td colspan="8" rowspan="8" style="padding:0;vertical-align:inherit"><div class="chess-board notheme" style="position:relative"><span class="notpageimage" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/176px-Chessboard480.svg.png" decoding="async" width="176" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/264px-Chessboard480.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/352px-Chessboard480.svg.png 2x" data-file-width="480" data-file-height="480" /></span></span><div style="position:absolute;z-index:3;top:0px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a8 black rook"><img alt="a8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c8 black knight"><img alt="c8 black knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/22px-Chess_ndt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/33px-Chess_ndt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/44px-Chess_ndt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e8 black rook"><img alt="e8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g8 black king"><img alt="g8 black king" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/22px-Chess_kdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/33px-Chess_kdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/44px-Chess_kdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b7 black pawn"><img alt="b7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d7 black knight"><img alt="d7 black knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/22px-Chess_ndt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/33px-Chess_ndt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/44px-Chess_ndt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f7 black pawn"><img alt="f7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g7 black pawn"><img alt="g7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a6 black pawn"><img alt="a6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c6 black pawn"><img alt="c6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d6 black bishop"><img alt="d6 black bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/22px-Chess_bdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/33px-Chess_bdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/44px-Chess_bdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h6 black pawn"><img alt="h6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a5 white pawn"><img alt="a5 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d5 black pawn"><img alt="d5 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f5 white pawn"><img alt="f5 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b4 white pawn"><img alt="b4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d4 white pawn"><img alt="d4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e4 white pawn"><img alt="e4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h4 black queen"><img alt="h4 black queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/22px-Chess_qdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/33px-Chess_qdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/44px-Chess_qdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c3 white knight"><img alt="c3 white knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/22px-Chess_nlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/33px-Chess_nlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/44px-Chess_nlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d3 white bishop"><img alt="d3 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h3 white pawn"><img alt="h3 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c2 white queen"><img alt="c2 white queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/22px-Chess_qlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/33px-Chess_qlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/44px-Chess_qlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d2 white bishop"><img alt="d2 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g2 white pawn"><img alt="g2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b1 white rook"><img alt="b1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e1 white rook"><img alt="e1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g1 white king"><img alt="g1 white king" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/22px-Chess_klt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/33px-Chess_klt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/44px-Chess_klt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div></div></td><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td></tr><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr></tbody></table><div class="thumbcaption">Position after 23...Qd8–h4!: the black queen X-rays White's pawn on d4. </div></div></div> </td> <td> <div class="thumb noviewer tright"><div class="center" style="line-height:130%;margin:0 auto;max-width:222px">Rauzer vs. Botvinnik </div><div class="thumbinner" style="width:214px"><table cellpadding="0" cellspacing="0" style="font-size:88%;border:1px #c8ccd1 solid;padding:0;margin:auto"><tbody><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td><td colspan="8" rowspan="8" style="padding:0;vertical-align:inherit"><div class="chess-board notheme" style="position:relative"><span class="notpageimage" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/176px-Chessboard480.svg.png" decoding="async" width="176" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/264px-Chessboard480.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/352px-Chessboard480.svg.png 2x" data-file-width="480" data-file-height="480" /></span></span><div style="position:absolute;z-index:3;top:0px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a8 black rook"><img alt="a8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d8 black rook"><img alt="d8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g8 black king"><img alt="g8 black king" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/22px-Chess_kdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/33px-Chess_kdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/44px-Chess_kdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a7 black pawn"><img alt="a7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b7 black pawn"><img alt="b7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c7 black queen"><img alt="c7 black queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/22px-Chess_qdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/33px-Chess_qdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/44px-Chess_qdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e7 black pawn"><img alt="e7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f7 black pawn"><img alt="f7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g7 black bishop"><img alt="g7 black bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/22px-Chess_bdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/33px-Chess_bdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/44px-Chess_bdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h7 black pawn"><img alt="h7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d6 black pawn"><img alt="d6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f6 black knight"><img alt="f6 black knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/22px-Chess_ndt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/33px-Chess_ndt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/44px-Chess_ndt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g6 black pawn"><img alt="g6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c4 black bishop"><img alt="c4 black bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/22px-Chess_bdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/33px-Chess_bdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/44px-Chess_bdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e4 white pawn"><img alt="e4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f4 white pawn"><img alt="f4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c3 white knight"><img alt="c3 white knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/22px-Chess_nlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/33px-Chess_nlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/44px-Chess_nlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e3 white bishop"><img alt="e3 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f3 white bishop"><img alt="f3 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a2 white pawn"><img alt="a2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b2 white pawn"><img alt="b2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c2 white pawn"><img alt="c2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d2 white queen"><img alt="d2 white queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/22px-Chess_qlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/33px-Chess_qlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/44px-Chess_qlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g2 white pawn"><img alt="g2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h2 white pawn"><img alt="h2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a1 white rook"><img alt="a1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e1 white rook"><img alt="e1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g1 white king"><img alt="g1 white king" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/22px-Chess_klt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/33px-Chess_klt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/44px-Chess_klt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div></div></td><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td></tr><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr></tbody></table><div class="thumbcaption">Cafferty and Taimanov suggest 15.Qf2, removing the queen from the X-ray of Black's rook. </div></div></div> </td></tr></tbody></table> <p>The first diagram position arose after 23...Qd8–h4! in <a href="/wiki/Micha%C5%82_Krasenkow" title="Michał Krasenkow">Krasenkow</a>–<a href="/wiki/Yasser_Seirawan" title="Yasser Seirawan">Seirawan</a>, <a href="/wiki/34th_Chess_Olympiad" title="34th Chess Olympiad">34th Chess Olympiad</a>, Istanbul 2000. <a href="/wiki/Michael_Rohde_(chess_player)" title="Michael Rohde (chess player)">Michael Rohde</a> writes of Seirawan's 23rd move, "Holding things up through an x-ray on the pawn on d4." Black would respond to either 24.e5 or 24.exd5 with 24...Qxd4+.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p><a href="/wiki/Gerald_Abrahams" title="Gerald Abrahams">Gerald Abrahams</a> alludes to the X-ray concept, without using that term, when he cites the <a href="/wiki/Aphorism" title="Aphorism">aphorism</a>, "Put your rook on the line of his <a href="/wiki/Queen_(chess)" title="Queen (chess)">queen</a>, no matter how many other pieces intervene." He writes, "That <a href="/wiki/Doggerel" title="Doggerel">doggerel</a> <a href="/wiki/Jingle" title="Jingle">jingle</a> incorporates some experience".<sup id="cite_ref-9" class="reference"><a href="#cite_note-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> A future world champion played in that manner in <a href="/wiki/Vsevolod_Rauzer" title="Vsevolod Rauzer">Rauzer</a>–<a href="/wiki/Mikhail_Botvinnik" title="Mikhail Botvinnik">Botvinnik</a>, USSR Championship 1933. Two moves before the second diagram position arose, Botvinnik had played 13...Rfd8, X-raying the white queen through the pawn on d6. Now Bernard Cafferty and <a href="/wiki/Mark_Taimanov" title="Mark Taimanov">Mark Taimanov</a> suggest "15.Qf2 to get away from the 'X-ray' attack from the d8 rook".<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> Instead, the game continued 15.Rac1 e5! 16.b3 d5<a href="/wiki/Chess_annotation_symbols#!!" title="Chess annotation symbols">!!</a>, exploiting the queen's position on the same file as the rook and leading to a win for Botvinnik 13 moves later.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p> <div style="clear:both;" class=""></div> <table align="right" border="0" cellpadding="1" cellspacing="0"> <tbody><tr valign="top"> <td> <div class="thumb noviewer tright"><div class="center" style="line-height:130%;margin:0 auto;max-width:222px">Petrosian vs. Ree </div><div class="thumbinner" style="width:214px"><table cellpadding="0" cellspacing="0" style="font-size:88%;border:1px #c8ccd1 solid;padding:0;margin:auto"><tbody><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td><td colspan="8" rowspan="8" style="padding:0;vertical-align:inherit"><div class="chess-board notheme" style="position:relative"><span class="notpageimage" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/176px-Chessboard480.svg.png" decoding="async" width="176" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/264px-Chessboard480.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/352px-Chessboard480.svg.png 2x" data-file-width="480" data-file-height="480" /></span></span><div style="position:absolute;z-index:3;top:0px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a8 black rook"><img alt="a8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c8 black bishop"><img alt="c8 black bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/22px-Chess_bdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/33px-Chess_bdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/44px-Chess_bdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d8 black queen"><img alt="d8 black queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/22px-Chess_qdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/33px-Chess_qdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/44px-Chess_qdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e8 black king"><img alt="e8 black king" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/22px-Chess_kdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/33px-Chess_kdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/44px-Chess_kdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h8 black rook"><img alt="h8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a7 black pawn"><img alt="a7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b7 black pawn"><img alt="b7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c7 black pawn"><img alt="c7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d7 black pawn"><img alt="d7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f7 black pawn"><img alt="f7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g7 black pawn"><img alt="g7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h7 black pawn"><img alt="h7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c6 white pawn"><img alt="c6 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b4 black bishop"><img alt="b4 black bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/22px-Chess_bdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/33px-Chess_bdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/44px-Chess_bdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b3 white queen"><img alt="b3 white queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/22px-Chess_qlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/33px-Chess_qlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/44px-Chess_qlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f3 black pawn"><img alt="f3 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g3 white pawn"><img alt="g3 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a2 white pawn"><img alt="a2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b2 white pawn"><img alt="b2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d2 white pawn"><img alt="d2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e2 white pawn"><img alt="e2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f2 white pawn"><img alt="f2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h2 white pawn"><img alt="h2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a1 white rook"><img alt="a1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c1 white bishop"><img alt="c1 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e1 white king"><img alt="e1 white king" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/22px-Chess_klt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/33px-Chess_klt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/44px-Chess_klt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f1 white bishop"><img alt="f1 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h1 white rook"><img alt="h1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div></div></td><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td></tr><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr></tbody></table><div class="thumbcaption">Position after 8.Qd1–b3; the queen X-rays Black's pawn on b7. </div></div></div> </td> <td> <div class="thumb noviewer tright"><div class="center" style="line-height:130%;margin:0 auto;max-width:222px">Dorfman vs. Tseshkovsky </div><div class="thumbinner" style="width:214px"><table cellpadding="0" cellspacing="0" style="font-size:88%;border:1px #c8ccd1 solid;padding:0;margin:auto"><tbody><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td><td colspan="8" rowspan="8" style="padding:0;vertical-align:inherit"><div class="chess-board notheme" style="position:relative"><span class="notpageimage" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/176px-Chessboard480.svg.png" decoding="async" width="176" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/264px-Chessboard480.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/352px-Chessboard480.svg.png 2x" data-file-width="480" data-file-height="480" /></span></span><div style="position:absolute;z-index:3;top:22px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a7 white queen"><img alt="a7 white queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/22px-Chess_qlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/33px-Chess_qlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/44px-Chess_qlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f7 black knight"><img alt="f7 black knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/22px-Chess_ndt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/33px-Chess_ndt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/44px-Chess_ndt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g7 black king"><img alt="g7 black king" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/22px-Chess_kdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/33px-Chess_kdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/44px-Chess_kdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g6 black pawn"><img alt="g6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e5 black queen"><img alt="e5 black queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/22px-Chess_qdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/33px-Chess_qdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/44px-Chess_qdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f5 black pawn"><img alt="f5 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h5 black pawn"><img alt="h5 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f4 white rook"><img alt="f4 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h4 white pawn"><img alt="h4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b3 black rook"><img alt="b3 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g3 white pawn"><img alt="g3 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g2 white bishop"><img alt="g2 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h2 white king"><img alt="h2 white king" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/22px-Chess_klt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/33px-Chess_klt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/44px-Chess_klt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div></div></td><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td></tr><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr></tbody></table><div class="thumbcaption">Black, on move, exploits his queen's X-ray of White's king along the b8–h2 diagonal. </div></div></div> </td></tr></tbody></table> <p>The first diagram position arose from the <a href="/wiki/English_Opening" title="English Opening">English Opening</a> in the famous <dfn><a href="/wiki/Glossary_of_chess#miniature" title="Glossary of chess"><span title="See entry at: Glossary of chess § miniature" style="color:inherit;" class="glossary-link">miniature</span></a></dfn> <a href="/wiki/Tigran_Petrosian" title="Tigran Petrosian">Petrosian</a>–<a href="/wiki/Hans_Ree" title="Hans Ree">Ree</a>, <a href="/wiki/Wijk_aan_Zee" title="Wijk aan Zee">Wijk aan Zee</a> 1971 after 1.c4 e5 2.Nc3 Nf6 3.Nf3 Nc6 4.g3 Bb4 5.Nd5 Nxd5 6.cxd5 e4<a href="/wiki/Chess_annotation_symbols#??" title="Chess annotation symbols">??</a> 7.dxc6 exf3 8.Qb3!<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> Author <a href="/wiki/Iakov_Neishtadt" class="mw-redirect" title="Iakov Neishtadt">Iakov Neishtadt</a> cites the game as an example of an "X-ray".<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> Black resigned because the white queen's X-ray of his pawn on b7, through Black's bishop on b4, wins a piece after, e.g., 8...a5 (or 8...Qe7) 9.a3 Bc5 10.cxb7.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </p><p>The above examples all involve a latent attack along a <dfn><a href="/wiki/Glossary_of_chess#file" title="Glossary of chess"><span title="See entry at: Glossary of chess § file" style="color:inherit;" class="glossary-link">file</span></a></dfn> or <dfn><a href="/wiki/Glossary_of_chess#rank" title="Glossary of chess"><span title="See entry at: Glossary of chess § rank" style="color:inherit;" class="glossary-link">rank</span></a></dfn>. A latent attack along a diagonal has also been called an X-ray. The second diagram position arose in <a href="/wiki/Josif_Dorfman" title="Josif Dorfman">Dorfman</a>–<a href="/wiki/Vitaly_Tseshkovsky" title="Vitaly Tseshkovsky">Tseshkovsky</a>, 46th <a href="/wiki/Soviet_Chess_Championship" class="mw-redirect" title="Soviet Chess Championship">USSR Championship</a> <a href="/wiki/Tbilisi" title="Tbilisi">Tbilisi</a> 1978. Cafferty and Taimanov write, "Black can use the 'X-ray' attack of his queen on the enemy king to break up the white bastions". Black exploited the X-ray along the b8–h2 diagonal and won quickly after 48...g5! 49.hxg5 h4! with a decisive attack.<sup id="cite_ref-CaffertyTaimanovp.180_16-0" class="reference"><a href="#cite_note-CaffertyTaimanovp.180-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> The game concluded 50.g6 Kxg6 51.Qa6+ Kg5 52.gxh4+ Kxf4 53.Qc4+ Ke3+ 54.Kh3 Kf2+ 55.Qxb3 Nxg5+! and White resigned in light of 56.hxg5 Qh8#.<sup id="cite_ref-CaffertyTaimanovp.180_16-1" class="reference"><a href="#cite_note-CaffertyTaimanovp.180-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> </p> <div style="clear:both;" class=""></div> <table align="right" border="0" cellpadding="1" cellspacing="0"> <tbody><tr valign="top"> <td> <div class="thumb noviewer tright"><div class="center" style="line-height:130%;margin:0 auto;max-width:222px"> </div><div class="thumbinner" style="width:214px"><table cellpadding="0" cellspacing="0" style="font-size:88%;border:1px #c8ccd1 solid;padding:0;margin:auto"><tbody><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td><td colspan="8" rowspan="8" style="padding:0;vertical-align:inherit"><div class="chess-board notheme" style="position:relative"><span class="notpageimage" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/176px-Chessboard480.svg.png" decoding="async" width="176" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/264px-Chessboard480.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/352px-Chessboard480.svg.png 2x" data-file-width="480" data-file-height="480" /></span></span><div style="position:absolute;z-index:3;top:0px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a8 black queen"><img alt="a8 black queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/22px-Chess_qdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/33px-Chess_qdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/44px-Chess_qdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d8 black rook"><img alt="d8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g8 black king"><img alt="g8 black king" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/22px-Chess_kdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/33px-Chess_kdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/44px-Chess_kdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f7 black pawn"><img alt="f7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g7 black pawn"><img alt="g7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h7 black pawn"><img alt="h7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a5 black pawn"><img alt="a5 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d5 black rook"><img alt="d5 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h4 white queen"><img alt="h4 white queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/22px-Chess_qlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/33px-Chess_qlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/44px-Chess_qlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h3 white pawn"><img alt="h3 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d2 white rook"><img alt="d2 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f2 white pawn"><img alt="f2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g2 white pawn"><img alt="g2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d1 white rook"><img alt="d1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g1 white king"><img alt="g1 white king" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/22px-Chess_klt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/33px-Chess_klt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/44px-Chess_klt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div></div></td><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td></tr><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr></tbody></table><div class="thumbcaption">White wins with the X-ray 1.Qxd8+! </div></div></div> </td> <td> <div class="thumb noviewer tright"><div class="center" style="line-height:130%;margin:0 auto;max-width:222px"> </div><div class="thumbinner" style="width:214px"><table cellpadding="0" cellspacing="0" style="font-size:88%;border:1px #c8ccd1 solid;padding:0;margin:auto"><tbody><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td><td colspan="8" rowspan="8" style="padding:0;vertical-align:inherit"><div class="chess-board notheme" style="position:relative"><span class="notpageimage" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/176px-Chessboard480.svg.png" decoding="async" width="176" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/264px-Chessboard480.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/352px-Chessboard480.svg.png 2x" data-file-width="480" data-file-height="480" /></span></span><div style="position:absolute;z-index:3;top:0px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g8 black king"><img alt="g8 black king" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/22px-Chess_kdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/33px-Chess_kdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/44px-Chess_kdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b7 black pawn"><img alt="b7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f7 black pawn"><img alt="f7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g7 black pawn"><img alt="g7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h7 black pawn"><img alt="h7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e6 black pawn"><img alt="e6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f6 black knight"><img alt="f6 black knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/22px-Chess_ndt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/33px-Chess_ndt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/44px-Chess_ndt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c5 white knight"><img alt="c5 white knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/22px-Chess_nlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/33px-Chess_nlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/44px-Chess_nlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d5 black bishop"><img alt="d5 black bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/22px-Chess_bdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/33px-Chess_bdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/44px-Chess_bdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g4 white pawn"><img alt="g4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c3 white pawn"><img alt="c3 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e3 white pawn"><img alt="e3 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f3 white bishop"><img alt="f3 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g3 white king"><img alt="g3 white king" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/22px-Chess_klt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/33px-Chess_klt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/44px-Chess_klt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h3 white pawn"><img alt="h3 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f2 white pawn"><img alt="f2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div></div></td><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td></tr><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr></tbody></table><div class="thumbcaption">White wins a pawn with the X-ray 1.Nxb7! </div></div></div> </td></tr></tbody></table> <p>The third usage is given by the American <a href="/wiki/Chess_master" class="mw-redirect" title="Chess master">master</a> and writer <a href="/wiki/Bruce_Pandolfini" title="Bruce Pandolfini">Bruce Pandolfini</a>, who states that one usage of "X-Ray" is "a skewer defense along a rank, file, or diagonal" that "protects a friendly man through an enemy man in the middle along the same line of power".<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Jeremy_Silman" title="Jeremy Silman">Jeremy Silman</a> uses the term in the same way, illustrating "X-ray" with the two diagrams. In the first diagram position, White wins with the X-ray 1.Qxd8+! followed by 1...Rxd8 2.Rxd8+ (note how White's rook defended his queen through the black rook on d5) Qxd8 3.Rxd8# or 1...Qxd8 2.Rxd5 Qf8 3.Rd8 and wins. In the second diagram position, White wins a pawn with 1.Nxb7!, when White's bishop on f3 defends the white knight on b7 through Black's bishop on d5.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> Silman states that the X-ray "takes advantage of pieces that appear to be adequately defended but really aren't".<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> </p> <div style="clear:both;" class=""></div> <table align="right" border="0" cellpadding="1" cellspacing="0"> <tbody><tr valign="top"> <td> <div class="thumb noviewer tright"><div class="center" style="line-height:130%;margin:0 auto;max-width:222px">Fischer vs. Bisguier (variation) </div><div class="thumbinner" style="width:214px"><table cellpadding="0" cellspacing="0" style="font-size:88%;border:1px #c8ccd1 solid;padding:0;margin:auto"><tbody><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td><td colspan="8" rowspan="8" style="padding:0;vertical-align:inherit"><div class="chess-board notheme" style="position:relative"><span class="notpageimage" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/176px-Chessboard480.svg.png" decoding="async" width="176" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/264px-Chessboard480.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/352px-Chessboard480.svg.png 2x" data-file-width="480" data-file-height="480" /></span></span><div style="position:absolute;z-index:3;top:0px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a8 black rook"><img alt="a8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b7 black king"><img alt="b7 black king" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/22px-Chess_kdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/33px-Chess_kdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/44px-Chess_kdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c7 black knight"><img alt="c7 black knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/22px-Chess_ndt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/33px-Chess_ndt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/44px-Chess_ndt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e7 white queen"><img alt="e7 white queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/22px-Chess_qlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/33px-Chess_qlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/44px-Chess_qlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h7 black pawn"><img alt="h7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b6 black pawn"><img alt="b6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c6 black pawn"><img alt="c6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e6 black pawn"><img alt="e6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e5 white pawn"><img alt="e5 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:66px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g5 black pawn"><img alt="g5 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c4 white pawn"><img alt="c4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d4 white pawn"><img alt="d4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g4 black queen"><img alt="g4 black queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/22px-Chess_qdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/33px-Chess_qdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/44px-Chess_qdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c3 white knight"><img alt="c3 white knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/22px-Chess_nlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/33px-Chess_nlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/70/Chess_nlt45.svg/44px-Chess_nlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f3 black pawn"><img alt="f3 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d2 white bishop"><img alt="d2 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f2 white pawn"><img alt="f2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g2 white pawn"><img alt="g2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h2 white pawn"><img alt="h2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f1 white rook"><img alt="f1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g1 white king"><img alt="g1 white king" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/22px-Chess_klt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/33px-Chess_klt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/44px-Chess_klt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div></div></td><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td></tr><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr></tbody></table><div class="thumbcaption">White defends with the X-ray 28.Qxg5. </div></div></div> </td> <td> <div class="thumb noviewer tright"><div class="center" style="line-height:130%;margin:0 auto;max-width:222px">Euwe vs. Loman </div><div class="thumbinner" style="width:214px"><table cellpadding="0" cellspacing="0" style="font-size:88%;border:1px #c8ccd1 solid;padding:0;margin:auto"><tbody><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td><td colspan="8" rowspan="8" style="padding:0;vertical-align:inherit"><div class="chess-board notheme" style="position:relative"><span class="notpageimage" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/176px-Chessboard480.svg.png" decoding="async" width="176" height="176" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/264px-Chessboard480.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d7/Chessboard480.svg/352px-Chessboard480.svg.png 2x" data-file-width="480" data-file-height="480" /></span></span><div style="position:absolute;z-index:3;top:0px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a8 black rook"><img alt="a8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b8 black knight"><img alt="b8 black knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/22px-Chess_ndt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/33px-Chess_ndt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/44px-Chess_ndt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d8 black queen"><img alt="d8 black queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/22px-Chess_qdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/33px-Chess_qdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/47/Chess_qdt45.svg/44px-Chess_qdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e8 black rook"><img alt="e8 black rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/22px-Chess_rdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/33px-Chess_rdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Chess_rdt45.svg/44px-Chess_rdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:0px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g8 black king"><img alt="g8 black king" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/22px-Chess_kdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/33px-Chess_kdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Chess_kdt45.svg/44px-Chess_kdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b7 black pawn"><img alt="b7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:88px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="e7 black knight"><img alt="e7 black knight" src="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/22px-Chess_ndt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/33px-Chess_ndt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Chess_ndt45.svg/44px-Chess_ndt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:22px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f7 black pawn"><img alt="f7 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c6 black pawn"><img alt="c6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:44px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g6 black pawn"><img alt="g6 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b4 black pawn"><img alt="b4 black pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/22px-Chess_pdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/33px-Chess_pdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Chess_pdt45.svg/44px-Chess_pdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c4 white pawn"><img alt="c4 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:88px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d4 black bishop"><img alt="d4 black bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/22px-Chess_bdt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/33px-Chess_bdt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/Chess_bdt45.svg/44px-Chess_bdt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:110px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h3 white queen"><img alt="h3 white queen" src="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/22px-Chess_qlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/33px-Chess_qlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/15/Chess_qlt45.svg/44px-Chess_qlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:0px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="a2 white pawn"><img alt="a2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:22px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="b2 white bishop"><img alt="b2 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d2 white pawn"><img alt="d2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f2 white pawn"><img alt="f2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:132px;left:132px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="g2 white pawn"><img alt="g2 white pawn" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/22px-Chess_plt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/33px-Chess_plt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/45/Chess_plt45.svg/44px-Chess_plt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:44px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="c1 white king"><img alt="c1 white king" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/22px-Chess_klt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/33px-Chess_klt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/42/Chess_klt45.svg/44px-Chess_klt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:66px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="d1 white rook"><img alt="d1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:110px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="f1 white bishop"><img alt="f1 white bishop" src="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/22px-Chess_blt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/33px-Chess_blt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/b1/Chess_blt45.svg/44px-Chess_blt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div><div style="position:absolute;z-index:3;top:154px;left:154px;width:22px;height:22px"><span class="mw-valign-top notpageimage" typeof="mw:File"><span title="h1 white rook"><img alt="h1 white rook" src="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/22px-Chess_rlt45.svg.png" decoding="async" width="22" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/33px-Chess_rlt45.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/72/Chess_rlt45.svg/44px-Chess_rlt45.svg.png 2x" data-file-width="45" data-file-height="45" /></span></span></div></div></td><td style="padding:0;vertical-align:inherit;text-align:center;width:18px;height:22px">8</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">7</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">6</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">5</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">4</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">3</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">2</td></tr><tr style="vertical-align:middle"><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td><td style="padding:0;vertical-align:inherit;text-align:center;height:22px">1</td></tr><tr style="vertical-align:middle"><td style="vertical-align:inherit;padding:0"></td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">a</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">b</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">c</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">d</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">e</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">f</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">g</td><td style="padding:0;vertical-align:inherit;text-align:center;height:18px;width:22px">h</td><td style="vertical-align:inherit;padding:0"></td></tr></tbody></table><div class="thumbcaption">White forced mate with the X-ray 17.Qh8+! </div></div></div> </td></tr></tbody></table> <p><a href="/wiki/Raymond_Keene" title="Raymond Keene">Raymond Keene</a> also uses the term in this way in analyzing <a href="/wiki/Bobby_Fischer" title="Bobby Fischer">Fischer</a>–<a href="/wiki/Arthur_Bisguier" title="Arthur Bisguier">Bisguier</a>, New York 1957.<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> Discussing a possible variation that could have arisen in that game (see first diagram position), Keene writes that 28.Qxg5 (when the white queen defends against 28...Qxg2# through Black's queen on g4) "defends the mate—an 'X-ray motif', as Fischer once described it".<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </p><p>In <a href="/wiki/Max_Euwe" title="Max Euwe">Euwe</a>–Loman, Rotterdam 1923 (second diagram position), White forced <a href="/wiki/Checkmate" title="Checkmate">mate</a> with 17.Qh8+! Bxh8 18.Rxh8#.<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> Neishtadt writes of 17.Qh8+, "The X-ray! The bishop at b2 attacks the square h8 'through' the enemy bishop."<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> </p> <div style="clear:both;" class=""></div> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=X-ray_(chess)&action=edit&section=2" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Chess_tactics" class="mw-redirect" title="Chess tactics">Chess tactics</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=X-ray_(chess)&action=edit&section=3" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text">Edward R. Brace, <i>An Illustrated Dictionary of Chess</i>, David McKay, 1977, p. 310. <style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-679-50814-7" title="Special:BookSources/0-679-50814-7">0-679-50814-7</a>.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><a href="/wiki/Edward_Winter_(chess_historian)" title="Edward Winter (chess historian)">Edward Winter</a>, <a rel="nofollow" class="external text" href="http://www.chesshistory.com/winter/winter20.html#4245._X-ray_attack_C.N._4231"><i>Chess Note</i> 4245</a>. Retrieved on 2009-03-17.</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text">Byrne J. Horton, Dictionary of Modern Chess, Philosophical Library, 1959, p. 220.</span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><a href="/wiki/Richard_Palliser" title="Richard Palliser">Richard Palliser</a>, <i>Tango! A Dynamic Answer to 1 d4</i>, <a href="/wiki/Everyman_Chess" title="Everyman Chess">Everyman Chess</a>, 2005, p. 177 (referring to "The e-file X-ray"). <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-85744-388-8" title="Special:BookSources/1-85744-388-8">1-85744-388-8</a>.</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text">Georgi Orlov, <i>The Black Knights' Tango</i>, Batsford, 1998, pp. 116–17 ("The idea of this mysterious rook move [8...Re8] is to prepare ...e6–e5 followed by ...Nd4! In that case the rook 'x-rays' the e4 pawn."). <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-7134-8349-0" title="Special:BookSources/0-7134-8349-0">0-7134-8349-0</a>.</span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><a href="/wiki/Bobby_Fischer" title="Bobby Fischer">Bobby Fischer</a>, <i><a href="/wiki/My_60_Memorable_Games" title="My 60 Memorable Games">My 60 Memorable Games</a></i>, Faber and Faber, 1969, pp. 351–52. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-571-09987-4" title="Special:BookSources/0-571-09987-4">0-571-09987-4</a>.</span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><a href="/wiki/Atanas_Kolev" title="Atanas Kolev">Atanas Kolev</a> and Trajko Nedev, <i>The Easiest Sicilian</i>, Chess Stars, Bulgaria, 2008, p. 98. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-954-8782-66-1" title="Special:BookSources/978-954-8782-66-1">978-954-8782-66-1</a>.</span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text">Michael Rohde, "Game of the Month", <i><a href="/wiki/Chess_Life" title="Chess Life">Chess Life</a></i>, March 2001, p. 15.</span> </li> <li id="cite_note-9"><span class="mw-cite-backlink"><b><a href="#cite_ref-9">^</a></b></span> <span class="reference-text">Gerald Abrahams, <i>Technique in Chess</i>, Dover Publications, 1973, p. 18. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-486-22953-X" title="Special:BookSources/0-486-22953-X">0-486-22953-X</a>.</span> </li> <li id="cite_note-10"><span class="mw-cite-backlink"><b><a href="#cite_ref-10">^</a></b></span> <span class="reference-text">Bernard Cafferty and Mark Taimanov, <i>The Soviet Championships</i>, Cadogan Chess Books, 1998, p. 36. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-85744-201-6" title="Special:BookSources/1-85744-201-6">1-85744-201-6</a>.</span> </li> <li id="cite_note-11"><span class="mw-cite-backlink"><b><a href="#cite_ref-11">^</a></b></span> <span class="reference-text">Cafferty & Taimanov, pp. 36–37.</span> </li> <li id="cite_note-12"><span class="mw-cite-backlink"><b><a href="#cite_ref-12">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.chessgames.com/perl/chessgame?gid=1031806">Rauzer–Botvinnik, USSR Championship 1933</a>. ChessGames.com. Retrieved on 2009-05-29.</span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.chessgames.com/perl/chessgame?gid=1106935">Petrosian–Ree, Wijk aan Zee 1971</a>. ChessGames.com. Retrieved on 2009-04-04.</span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><a href="/wiki/Iakov_Neishtadt" class="mw-redirect" title="Iakov Neishtadt">Iakov Neishtadt</a>, <i>Catastrophe in the Opening</i>, Pergamon Press, 1980, pp. 255, 266. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-08-024097-6" title="Special:BookSources/0-08-024097-6">0-08-024097-6</a>.</span> </li> <li id="cite_note-15"><span class="mw-cite-backlink"><b><a href="#cite_ref-15">^</a></b></span> <span class="reference-text">Neishtadt, p. 255.</span> </li> <li id="cite_note-CaffertyTaimanovp.180-16"><span class="mw-cite-backlink">^ <a href="#cite_ref-CaffertyTaimanovp.180_16-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-CaffertyTaimanovp.180_16-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text">Cafferty & Taimanov, p. 180.</span> </li> <li id="cite_note-17"><span class="mw-cite-backlink"><b><a href="#cite_ref-17">^</a></b></span> <span class="reference-text"><i><a href="/wiki/Chess_Informant" title="Chess Informant">Chess Informant</a></i>, Volume 27, <a href="/wiki/Beograd" class="mw-redirect" title="Beograd">Beograd</a>, 1979, pp. 55–56.</span> </li> <li id="cite_note-18"><span class="mw-cite-backlink"><b><a href="#cite_ref-18">^</a></b></span> <span class="reference-text">Bruce Pandolfini, <i>Chess Openings: Traps and Zaps</i>, Fireside Chess Library, 1989, p. 232. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-671-65690-2" title="Special:BookSources/0-671-65690-2">0-671-65690-2</a>.</span> </li> <li id="cite_note-19"><span class="mw-cite-backlink"><b><a href="#cite_ref-19">^</a></b></span> <span class="reference-text">Jeremy Silman, <i>The Complete Book of Chess Strategy: Grandmaster Techniques from A to Z</i>, Siles Press, 1998, pp. 132–33. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-890085-01-4" title="Special:BookSources/1-890085-01-4">1-890085-01-4</a>.</span> </li> <li id="cite_note-20"><span class="mw-cite-backlink"><b><a href="#cite_ref-20">^</a></b></span> <span class="reference-text">Silman 1998, p. 132.</span> </li> <li id="cite_note-21"><span class="mw-cite-backlink"><b><a href="#cite_ref-21">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.chessgames.com/perl/chessgame?gid=1028389">Fischer–Bisguier, U.S. Championship 1957</a>. ChessGames.com. Retrieved on 2009-05-26.</span> </li> <li id="cite_note-22"><span class="mw-cite-backlink"><b><a href="#cite_ref-22">^</a></b></span> <span class="reference-text">Raymond Keene in <a href="/wiki/Edward_Winter_(chess_historian)" title="Edward Winter (chess historian)">E. G. Winter</a> (editor), <i>World Chess Champions</i>, Pergamon Press, 1981, p. 114. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-08-024094-1" title="Special:BookSources/0-08-024094-1">0-08-024094-1</a>.</span> </li> <li id="cite_note-23"><span class="mw-cite-backlink"><b><a href="#cite_ref-23">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.chessgames.com/perl/chessgame?gid=1042147">Euwe–Loman, Rotterdam 1923</a>. ChessGames.com. Retrieved on 2010-05-01.</span> </li> <li id="cite_note-24"><span class="mw-cite-backlink"><b><a href="#cite_ref-24">^</a></b></span> <span class="reference-text">Neishtadt, pp. 25–26.</span> </li> </ol></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist 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title="Chess">Chess</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Outline_of_chess" title="Outline of chess">Outline</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Chess_theory" title="Chess theory">Chess theory</a></li> <li><a href="/wiki/Chess_title" title="Chess title">Chess titles</a> <ul><li><a href="/wiki/Grandmaster_(chess)" title="Grandmaster (chess)">Grandmaster</a></li></ul></li> <li><a href="/wiki/Computer_chess" title="Computer chess">Computer chess</a> <ul><li><a href="/wiki/Glossary_of_computer_chess_terms" title="Glossary of computer chess terms">glossary</a></li> <li><a href="/wiki/Human%E2%80%93computer_chess_matches" title="Human–computer chess matches">matches</a></li> <li><a href="/wiki/Chess_engine" title="Chess engine">engines</a></li> <li><a href="/wiki/List_of_chess_software" title="List of chess software">software</a></li></ul></li> <li><a href="/wiki/Correspondence_chess" title="Correspondence chess">Correspondence chess</a></li> <li><a href="/wiki/FIDE" title="FIDE">FIDE</a></li> <li><a href="/wiki/Glossary_of_chess" title="Glossary of chess">Glossary</a></li> <li><a href="/wiki/Online_chess" title="Online chess">Online chess</a> <ul><li><a href="/wiki/Premove" title="Premove">Premove</a></li> <li><a href="/wiki/Internet_chess_server" title="Internet chess server">Internet chess server</a> <ul><li><a href="/wiki/List_of_Internet_chess_servers" title="List of Internet chess servers">list</a></li></ul></li></ul></li> <li><a href="/wiki/Chess_rating_system" title="Chess rating system">Rating system</a> <ul><li><a href="/wiki/FIDE_world_rankings" class="mw-redirect" title="FIDE world rankings">world rankings</a></li> <li><a href="/wiki/Norm_(chess)" title="Norm (chess)">norms</a></li></ul></li> <li><a href="/wiki/Chess_variant" title="Chess variant">Variants</a> <ul><li><a href="/wiki/List_of_chess_variants" title="List of chess variants">List</a></li></ul></li> <li><a href="/wiki/List_of_world_records_in_chess" title="List of world records in chess">World records</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Chess_equipment" title="Chess equipment">Equipment</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Chess_set" title="Chess set">Chess set</a> <ul><li><a href="/wiki/Chessboard" title="Chessboard">chessboard</a></li> <li><a href="/wiki/Dubrovnik_chess_set" title="Dubrovnik chess set">Dubrovnik chess set</a></li> <li><a href="/wiki/Staunton_chess_set" title="Staunton chess set">Staunton chess set</a></li></ul></li> <li><a href="/wiki/Chess_piece" title="Chess piece">Chess pieces</a> <ul><li><a href="/wiki/King_(chess)" title="King (chess)">King</a></li> <li><a href="/wiki/Queen_(chess)" title="Queen (chess)">Queen</a></li> <li><a href="/wiki/Rook_(chess)" title="Rook (chess)">Rook</a></li> <li><a href="/wiki/Bishop_(chess)" title="Bishop (chess)">Bishop</a></li> <li><a href="/wiki/Knight_(chess)" title="Knight (chess)">Knight</a></li> <li><a href="/wiki/Pawn_(chess)" title="Pawn (chess)">Pawn</a></li> <li><a href="/wiki/Fairy_chess_piece" title="Fairy chess piece">Fairy</a></li></ul></li> <li><a href="/wiki/Chess_clock" title="Chess clock">Chess clock</a></li> <li><a href="/wiki/Chess_table" title="Chess table">Chess table</a></li> <li><dfn><a href="/wiki/Glossary_of_chess#score_sheets" title="Glossary of chess"><span title="See entry at: Glossary of chess § Score sheets" style="color:inherit;" class="glossary-link">Score sheets</span></a></dfn></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/History_of_chess" title="History of chess">History</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Timeline_of_chess" title="Timeline of chess">Timeline</a> <ul><li><i><a href="/wiki/Versus_de_scachis" title="Versus de scachis">Versus de scachis</a></i></li> <li><i><a href="/wiki/G%C3%B6ttingen_manuscript" title="Göttingen manuscript">Göttingen manuscript</a></i></li> <li><a href="/wiki/Charlemagne_chessmen" title="Charlemagne chessmen">Charlemagne chessmen</a></li> <li><a href="/wiki/Lewis_chessmen" title="Lewis chessmen">Lewis chessmen</a></li> <li><a href="/wiki/Romantic_chess" title="Romantic chess">Romantic chess</a></li> <li><a href="/wiki/Hypermodernism_(chess)" title="Hypermodernism (chess)">Hypermodernism</a></li> <li><a href="/wiki/Soviet_chess_school" title="Soviet chess school">Soviet chess school</a></li> <li><a href="/wiki/Comparison_of_top_chess_players_throughout_history" title="Comparison of top chess players throughout history">Top player comparison</a></li></ul></li> <li><a href="/wiki/Geography_of_chess" title="Geography of chess">Geography of chess</a> <ul><li><a href="/wiki/Chess_in_Africa" title="Chess in Africa">Africa</a> <ul><li><a href="/wiki/Chess_in_South_Africa" title="Chess in South Africa">South Africa</a></li></ul></li> <li><a href="/wiki/Chess_in_China" title="Chess in China">China</a></li> <li><a href="/wiki/Chess_in_Europe" title="Chess in Europe">Europe</a> <ul><li><a href="/wiki/Chess_in_Armenia" title="Chess in Armenia">Armenia</a></li> <li><a href="/wiki/Chess_in_Spain" title="Chess in Spain">Spain</a></li></ul></li> <li><a href="/wiki/Chess_in_India" title="Chess in India">India</a></li></ul></li> <li><a href="/wiki/List_of_chess_games" title="List of chess games">Notable games</a></li> <li><a href="/wiki/List_of_chess_players" title="List of chess players">List of chess players</a> <ul><li><a href="/wiki/List_of_amateur_chess_players" title="List of amateur chess players">amateurs</a></li> <li><a href="/wiki/List_of_female_chess_players" title="List of female chess players">female</a></li> <li><a href="/wiki/List_of_chess_grandmasters" title="List of chess grandmasters">grandmasters</a></li></ul></li> <li><a href="/wiki/Women_in_chess" title="Women in chess">Women in chess</a></li> <li><a href="/wiki/Category:Chess_museums" title="Category:Chess museums">Chess museums</a> <ul><li><a href="/wiki/Bobby_Fischer_Center" title="Bobby Fischer Center">Bobby Fischer Center</a></li> <li><a href="/wiki/G%C3%B6kyay_Association_Chess_Museum" title="Gökyay Association Chess Museum">Gökyay Association Chess Museum</a></li> <li><a href="/wiki/World_Chess_Hall_of_Fame" title="World Chess Hall of Fame">World Chess Hall of Fame</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Rules_of_chess" title="Rules of chess">Rules</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Castling" title="Castling">Castling</a></li> <li><a href="/wiki/Cheating_in_chess" title="Cheating in chess">Cheating in chess</a></li> <li><a href="/wiki/Check_(chess)" title="Check (chess)">Check</a></li> <li><a href="/wiki/Checkmate" title="Checkmate">Checkmate</a></li> <li><a href="/wiki/Draw_(chess)" title="Draw (chess)">Draw</a> <ul><li><a href="/wiki/Draw_by_agreement" title="Draw by agreement">by agreement</a></li> <li><a href="/wiki/Fifty-move_rule" title="Fifty-move rule">Fifty-move rule</a></li> <li><a href="/wiki/Perpetual_check" title="Perpetual check">Perpetual check</a></li> <li><a href="/wiki/Stalemate" title="Stalemate">Stalemate</a></li> <li><a href="/wiki/Threefold_repetition" title="Threefold repetition">Threefold repetition</a></li></ul></li> <li><i><a href="/wiki/En_passant" title="En passant">En passant</a></i></li> <li><a href="/wiki/Promotion_(chess)" title="Promotion (chess)">Pawn promotion</a></li> <li><a href="/wiki/Time_control" title="Time control">Time control</a> <ul><li><a href="/wiki/Fast_chess" title="Fast chess">Fast chess</a></li></ul></li> <li><a href="/wiki/Touch-move_rule" title="Touch-move rule">Touch-move rule</a></li> <li><a href="/wiki/White_and_Black_in_chess" title="White and Black in chess">White and Black</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Glossary_of_chess" title="Glossary of chess">Terms</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Blunder_(chess)" title="Blunder (chess)">Blunder</a></li> <li><a href="/wiki/Chess_notation" title="Chess notation">Chess notation</a> <ul><li><a href="/wiki/Algebraic_notation_(chess)" title="Algebraic notation (chess)">algebraic</a></li> <li><a href="/wiki/Descriptive_notation" title="Descriptive notation">descriptive</a></li> <li><a href="/wiki/Portable_Game_Notation" title="Portable Game Notation">PGN</a></li> <li><a href="/wiki/Chess_annotation_symbols" title="Chess annotation symbols">annotation symbols</a></li> <li><a href="/wiki/Chess_symbols_in_Unicode" title="Chess symbols in Unicode">symbols in Unicode</a></li></ul></li> <li><a href="/wiki/Fianchetto" title="Fianchetto">Fianchetto</a></li> <li><a href="/wiki/Gambit" title="Gambit">Gambit</a></li> <li><a href="/wiki/Key_square" title="Key square">Key square</a></li> <li><a href="/wiki/King_walk" title="King walk">King walk</a></li> <li><a href="/wiki/Open_file" title="Open file">Open file</a> <ul><li><a href="/wiki/Half-open_file" title="Half-open file">Half-open file</a></li></ul></li> <li><a href="/wiki/Outpost_(chess)" title="Outpost (chess)">Outpost</a></li> <li><a href="/wiki/Pawn_(chess)" title="Pawn (chess)">Pawns</a> <ul><li><a href="/wiki/Backward_pawn" title="Backward pawn">backward</a></li> <li><a href="/wiki/Connected_pawns" title="Connected pawns">connected</a></li> <li><a href="/wiki/Doubled_pawns" title="Doubled pawns">doubled</a></li> <li><a href="/wiki/Isolated_pawn" title="Isolated pawn">isolated</a></li> <li><a href="/wiki/Passed_pawn" title="Passed pawn">passed</a></li></ul></li> <li><a href="/wiki/Swindle_(chess)" title="Swindle (chess)">Swindle</a></li> <li><a href="/wiki/Tempo_(chess)" title="Tempo (chess)">Tempo</a></li> <li><a href="/wiki/Transposition_(chess)" title="Transposition (chess)">Transposition</a></li> <li><a href="/wiki/List_of_chess_traps" title="List of chess traps">Trap</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Chess_tactic" title="Chess tactic">Tactics</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Castling#Artificial_castling" title="Castling">Artificial castling</a></li> <li><a href="/wiki/Battery_(chess)" title="Battery (chess)">Battery</a> <ul><li><a href="/wiki/Alekhine%27s_gun" title="Alekhine's gun">Alekhine's gun</a></li></ul></li> <li><a href="/wiki/Block_(chess)" title="Block (chess)">Block</a></li> <li><a href="/wiki/Checkmate_pattern" title="Checkmate pattern">Checkmate patterns</a></li> <li><a href="/wiki/Combination_(chess)" title="Combination (chess)">Combination</a></li> <li><a href="/wiki/Decoy_(chess)" title="Decoy (chess)">Decoy</a></li> <li><a href="/wiki/Deflection_(chess)" title="Deflection (chess)">Deflection</a></li> <li><a href="/wiki/Desperado_(chess)" title="Desperado (chess)">Desperado</a></li> <li><a href="/wiki/Discovered_attack" title="Discovered attack">Discovered attack</a></li> <li><a href="/wiki/Double_check" title="Double check">Double check</a></li> <li><a href="/wiki/Fork_(chess)" title="Fork (chess)">Fork</a></li> <li><a href="/wiki/Interference_(chess)" title="Interference (chess)">Interference</a></li> <li><a href="/wiki/Overloading_(chess)" title="Overloading (chess)">Overloading</a></li> <li><a href="/wiki/Pawn_storm" title="Pawn storm">Pawn storm</a></li> <li><a href="/wiki/Pin_(chess)" title="Pin (chess)">Pin</a></li> <li><a href="/wiki/Sacrifice_(chess)" title="Sacrifice (chess)">Sacrifice</a> <ul><li><a href="/wiki/Queen_sacrifice" title="Queen sacrifice">Queen sacrifice</a></li></ul></li> <li><a href="/wiki/Skewer_(chess)" title="Skewer (chess)">Skewer</a></li> <li><a href="/wiki/Undermining_(chess)" title="Undermining (chess)">Undermining</a></li> <li><a href="/wiki/Windmill_(chess)" title="Windmill (chess)">Windmill</a></li> <li><a class="mw-selflink selflink">X-ray</a></li> <li><a href="/wiki/Zwischenzug" title="Zwischenzug">Zwischenzug</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Chess_strategy" title="Chess strategy">Strategy</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Compensation_(chess)" title="Compensation (chess)">Compensation</a></li> <li><a href="/wiki/Exchange_(chess)" title="Exchange (chess)">Exchange</a> <ul><li><a href="/wiki/The_exchange_(chess)" title="The exchange (chess)">the exchange</a></li></ul></li> <li><a href="/wiki/Initiative_(chess)" title="Initiative (chess)">Initiative</a> <ul><li><a href="/wiki/First-move_advantage_in_chess" title="First-move advantage in chess">first-move advantage</a></li></ul></li> <li><a href="/wiki/Chess_middlegame" title="Chess middlegame">Middlegame</a></li> <li><a href="/wiki/Pawn_structure" title="Pawn structure">Pawn structure</a> <ul><li><a href="/wiki/Hedgehog_(chess)" title="Hedgehog (chess)">Hedgehog</a></li> <li><a href="/wiki/Isolated_pawn" title="Isolated pawn">Isolated Queen's Pawn</a></li> <li><a href="/wiki/Mar%C3%B3czy_Bind" title="Maróczy Bind">Maróczy Bind</a></li> <li><a href="/wiki/Minority_attack" title="Minority attack">Minority attack</a></li></ul></li> <li><a href="/wiki/Chess_piece_relative_value" title="Chess piece relative value">Piece values</a></li> <li><a href="/wiki/Prophylaxis_(chess)" title="Prophylaxis (chess)">Prophylaxis</a></li> <li><a href="/wiki/School_of_chess" title="School of chess">School of chess</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Chess_opening" title="Chess opening">Openings</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Flank_opening" title="Flank opening">Flank opening</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/King%27s_Fianchetto_Opening" title="King's Fianchetto Opening">Benko Opening</a></li> <li><a href="/wiki/Bird%27s_Opening" title="Bird's Opening">Bird's Opening</a></li> <li><a href="/wiki/Dunst_Opening" title="Dunst Opening">Dunst Opening</a></li> <li><a href="/wiki/English_Opening" title="English Opening">English Opening</a></li> <li><a href="/wiki/Grob%27s_Attack" title="Grob's Attack">Grob's Attack</a></li> <li><a href="/wiki/Larsen%27s_Opening" class="mw-redirect" title="Larsen's Opening">Larsen's Opening</a></li> <li><a href="/wiki/Zukertort_Opening" title="Zukertort Opening">Zukertort Opening</a> <ul><li><a href="/wiki/King%27s_Indian_Attack" title="King's Indian Attack">King's Indian Attack</a></li> <li><a href="/wiki/R%C3%A9ti_Opening" title="Réti Opening">Réti Opening</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/King%27s_Pawn_Game" title="King's Pawn Game">King's Pawn Game</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alekhine%27s_Defence" title="Alekhine's Defence">Alekhine's Defence</a></li> <li><a href="/wiki/Caro%E2%80%93Kann_Defence" title="Caro–Kann Defence">Caro–Kann Defence</a></li> <li><a href="/wiki/French_Defence" title="French Defence">French Defence</a></li> <li><a href="/wiki/Modern_Defense" title="Modern Defense">Modern Defence</a></li> <li><a href="/wiki/Nimzowitsch_Defence" title="Nimzowitsch Defence">Nimzowitsch Defence</a></li> <li><a href="/wiki/Open_Game" title="Open Game">Open Game</a> <ul><li><a href="/wiki/Four_Knights_Game" title="Four Knights Game">Four Knights Game</a></li> <li><a href="/wiki/Giuoco_Piano" title="Giuoco Piano">Giuoco Piano</a></li> <li><a href="/wiki/Italian_Game" title="Italian Game">Italian Game</a></li> <li><a href="/wiki/King%27s_Gambit" title="King's Gambit">King's Gambit</a></li> <li><a href="/wiki/Petrov%27s_Defence" title="Petrov's Defence">Petrov's Defence</a></li> <li><a href="/wiki/Philidor_Defence" title="Philidor Defence">Philidor Defence</a></li> <li><a href="/wiki/Ponziani_Opening" title="Ponziani Opening">Ponziani Opening</a></li> <li><a href="/wiki/Ruy_Lopez" title="Ruy Lopez">Ruy Lopez</a></li> <li><a href="/wiki/Semi-Italian_Opening" title="Semi-Italian Opening">Semi-Italian Opening</a></li> <li><a href="/wiki/Scotch_Game" title="Scotch Game">Scotch Game</a></li> <li><a href="/wiki/Two_Knights_Defense" title="Two Knights Defense">Two Knights Defense</a></li> <li><a href="/wiki/Vienna_Game" title="Vienna Game">Vienna Game</a></li></ul></li> <li><a href="/wiki/Owen%27s_Defence" title="Owen's Defence">Owen's Defence</a></li> <li><a href="/wiki/Pirc_Defence" title="Pirc Defence">Pirc Defence</a> <ul><li><a href="/wiki/Pirc_Defence,_Austrian_Attack" title="Pirc Defence, Austrian Attack">Austrian Attack</a></li></ul></li> <li><a href="/wiki/Scandinavian_Defense" title="Scandinavian Defense">Scandinavian Defense</a></li> <li><a href="/wiki/Sicilian_Defence" title="Sicilian Defence">Sicilian Defence</a> <ul><li><a href="/wiki/Sicilian_Defence,_Alapin_Variation" title="Sicilian Defence, Alapin Variation">Alapin</a></li> <li><a href="/wiki/Sicilian_Defence,_Dragon_Variation" title="Sicilian Defence, Dragon Variation">Dragon</a>/<a href="/wiki/Sicilian_Defence,_Accelerated_Dragon" title="Sicilian Defence, Accelerated Dragon">Accelerated Dragon</a></li> <li><a href="/wiki/Sicilian_Defence,_Najdorf_Variation" title="Sicilian Defence, Najdorf Variation">Najdorf</a></li> <li><a href="/wiki/Sicilian_Defence,_Scheveningen_Variation" title="Sicilian Defence, Scheveningen Variation">Scheveningen</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Queen%27s_Pawn_Game" title="Queen's Pawn Game">Queen's Pawn Game</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Budapest_Gambit" title="Budapest Gambit">Budapest Gambit</a></li> <li><a href="/wiki/Colle_System" title="Colle System">Colle System</a></li> <li><a href="/wiki/Dutch_Defence" title="Dutch Defence">Dutch Defence</a></li> <li><a href="/wiki/English_Defence" title="English Defence">English Defence</a></li> <li><a href="/wiki/Indian_Defence" title="Indian Defence">Indian Defence</a> <ul><li><a href="/wiki/Benoni_Defense" title="Benoni Defense">Benoni Defence</a></li> <li><a href="/wiki/Modern_Benoni" title="Modern Benoni">Modern Benoni</a></li> <li><a href="/wiki/Bogo-Indian_Defence" title="Bogo-Indian Defence">Bogo-Indian Defence</a></li> <li><a href="/wiki/Catalan_Opening" title="Catalan Opening">Catalan Opening</a></li> <li><a href="/wiki/Gr%C3%BCnfeld_Defence" title="Grünfeld Defence">Grünfeld Defence</a></li> <li><a href="/wiki/King%27s_Indian_Defence" title="King's Indian Defence">King's Indian Defence</a></li> <li><a href="/wiki/Nimzo-Indian_Defence" title="Nimzo-Indian Defence">Nimzo-Indian Defence</a></li> <li><a href="/wiki/Old_Indian_Defense" title="Old Indian Defense">Old Indian Defense</a></li> <li><a href="/wiki/Queen%27s_Indian_Defense" title="Queen's Indian Defense">Queen's Indian Defence</a></li></ul></li> <li><a href="/wiki/London_System" title="London System">London System</a></li> <li><a href="/wiki/Richter%E2%80%93Veresov_Attack" title="Richter–Veresov Attack">Richter–Veresov Attack</a></li> <li><a href="/wiki/Queen%27s_Gambit" title="Queen's Gambit">Queen's Gambit</a> <ul><li><a href="/wiki/Queen%27s_Gambit_Accepted" title="Queen's Gambit Accepted">Accepted</a></li> <li><a href="/wiki/Queen%27s_Gambit_Declined" title="Queen's Gambit Declined">Declined</a></li> <li><a href="/wiki/Slav_Defense" title="Slav Defense">Slav Defence</a></li> <li><a href="/wiki/Semi-Slav_Defense" title="Semi-Slav Defense">Semi-Slav Defence</a></li> <li><a href="/wiki/Chigorin_Defense" title="Chigorin Defense">Chigorin Defense</a></li></ul></li> <li><a href="/wiki/Torre_Attack" title="Torre Attack">Torre Attack</a></li> <li><a href="/wiki/Trompowsky_Attack" title="Trompowsky Attack">Trompowsky Attack</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_chess_openings" title="List of chess openings">List of openings</a> <ul><li><a href="/wiki/Chess_opening_theory_table" title="Chess opening theory table">theory table</a></li></ul></li> <li><a href="/wiki/List_of_chess_gambits" title="List of chess gambits">List of chess gambits</a></li> <li><a href="/wiki/Irregular_chess_opening" title="Irregular chess opening">Irregular</a> <ul><li><a href="/wiki/Bongcloud_Attack" title="Bongcloud Attack">Bongcloud Attack</a></li> <li><a href="/wiki/Fool%27s_mate" title="Fool's mate">Fool's mate</a></li> <li><a href="/wiki/Scholar%27s_mate" title="Scholar's mate">Scholar's mate</a></li></ul></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Chess_endgame" title="Chess endgame">Endgames</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Bishop_and_knight_checkmate" title="Bishop and knight checkmate">Bishop and knight checkmate</a></li> <li><a href="/wiki/King_and_pawn_versus_king_endgame" title="King and pawn versus king endgame">King and pawn vs king</a></li> <li><a href="/wiki/Opposite-colored_bishops_endgame" title="Opposite-colored bishops endgame">Opposite-coloured bishops</a></li> <li><a href="/wiki/Pawnless_chess_endgame" title="Pawnless chess endgame">Pawnless endgame</a></li> <li><a href="/wiki/Queen_and_pawn_versus_queen_endgame" title="Queen and pawn versus queen endgame">Queen and pawn vs queen</a></li> <li><a href="/wiki/Queen_versus_pawn_endgame" title="Queen versus pawn endgame">Queen vs pawn</a></li> <li><a href="/wiki/Queen_versus_rook_endgame" title="Queen versus rook endgame">Queen vs rook</a></li> <li><a href="/wiki/Rook_and_bishop_versus_rook_endgame" title="Rook and bishop versus rook endgame">Rook and bishop vs rook</a></li> <li><a href="/wiki/Rook_and_pawn_versus_rook_endgame" title="Rook and pawn versus rook endgame">Rook and pawn vs rook</a> <ul><li><a href="/wiki/Lucena_position" title="Lucena position">Lucena position</a></li> <li><a href="/wiki/Philidor_position" title="Philidor position">Philidor position</a></li></ul></li> <li>Strategy <ul><li><a href="/wiki/Fortress_(chess)" title="Fortress (chess)">fortress</a></li> <li><a href="/wiki/Opposition_(chess)" title="Opposition (chess)">opposition</a></li> <li><a href="/wiki/Tarrasch_rule" title="Tarrasch rule">Tarrasch rule</a></li> <li><a href="/wiki/Triangulation_(chess)" title="Triangulation (chess)">triangulation</a></li> <li><a href="/wiki/Zugzwang" title="Zugzwang">Zugzwang</a></li></ul></li> <li><a href="/wiki/Endgame_study" title="Endgame study">Study</a></li> <li><a href="/wiki/Endgame_tablebase" title="Endgame tablebase">Tablebase</a></li> <li><a href="/wiki/Two_knights_endgame" title="Two knights endgame">Two knights endgame</a></li> <li><a href="/wiki/Wrong_bishop" title="Wrong bishop">Wrong bishop</a></li> <li><a href="/wiki/Wrong_rook_pawn" title="Wrong rook pawn">Wrong rook pawn</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Chess_tournament" title="Chess tournament">Tournaments</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_strong_chess_tournaments" title="List of strong chess tournaments">List of strong chess tournaments</a></li> <li><a href="/wiki/Chess_Olympiad" title="Chess Olympiad">Chess Olympiad</a> <ul><li><a href="/wiki/Women%27s_Chess_Olympiad" title="Women's Chess Olympiad">Women</a></li></ul></li> <li><a href="/wiki/World_Chess_Championship" title="World Chess Championship">World Chess Championship</a> <ul><li><a href="/wiki/List_of_World_Chess_Championships" title="List of World Chess Championships">List</a></li> <li><a href="/wiki/Candidates_Tournament" title="Candidates Tournament">Candidates Tournament</a></li> <li><a href="/wiki/Chess_World_Cup" title="Chess World Cup">Chess World Cup</a></li> <li><a href="/wiki/FIDE_Grand_Prix" title="FIDE Grand Prix">FIDE Grand Prix</a></li></ul></li> <li>Other world championships <ul><li><a href="/wiki/Women%27s_World_Chess_Championship" title="Women's World Chess Championship">Women</a></li> <li><a href="/wiki/World_Team_Chess_Championship" title="World Team Chess Championship">Team</a></li> <li><a href="/wiki/World_Rapid_Chess_Championship" title="World Rapid Chess Championship">Rapid</a></li> <li><a href="/wiki/World_Blitz_Chess_Championship" title="World Blitz Chess Championship">Blitz</a></li> <li><a href="/wiki/World_Junior_Chess_Championship" title="World Junior Chess Championship">Junior</a></li> <li><a href="/wiki/World_Youth_Chess_Championship" title="World Youth Chess Championship">Youth</a></li> <li><a href="/wiki/World_Senior_Chess_Championship" title="World Senior Chess Championship">Senior</a></li> <li><a href="/wiki/World_Amateur_Chess_Championship" title="World Amateur Chess Championship">Amateur</a></li> <li><a href="/wiki/World_Championship_of_Chess_Composition" title="World Championship of Chess Composition">Chess composition</a></li> <li><a href="/wiki/World_Chess_Solving_Championship" title="World Chess Solving Championship">Solving</a></li></ul></li> <li>Computer chess championships <ul><li><a href="/wiki/Chess.com_Computer_Chess_Championship" class="mw-redirect" title="Chess.com Computer Chess Championship">CCC</a></li> <li><a href="/wiki/Dutch_Open_Computer_Chess_Championship" title="Dutch Open Computer Chess Championship">CSVN</a></li> <li><a href="/wiki/North_American_Computer_Chess_Championship" title="North American Computer Chess Championship">North American</a></li> <li><a href="/wiki/Top_Chess_Engine_Championship" title="Top Chess Engine Championship">TCEC</a></li> <li><a href="/wiki/World_Computer_Chess_Championship" title="World Computer Chess Championship">WCCC</a></li> <li><a href="/wiki/World_Computer_Speed_Chess_Championship" title="World Computer Speed Chess Championship">WCSCC</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Art and media</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ca%C3%AFssa" title="Caïssa">Caïssa</a></li> <li><a href="/wiki/Chess_aesthetics" title="Chess aesthetics">Chess aesthetics</a></li> <li><a href="/wiki/Chess_in_the_arts" title="Chess in the arts">Chess in the arts</a> <ul><li><a href="/wiki/Chess_in_early_literature" title="Chess in early literature">early literature</a></li> <li><a href="/wiki/Category:Films_about_chess" title="Category:Films about chess">film</a></li> <li><a href="/wiki/Category:Novels_about_chess" title="Category:Novels about chess">novels</a></li> <li><a href="/wiki/Category:Chess_paintings" title="Category:Chess paintings">paintings</a></li> <li><a href="/wiki/Category:Poems_about_chess" title="Category:Poems about chess">poetry</a></li> <li><a href="/wiki/Category:Short_stories_about_chess" title="Category:Short stories about chess">short stories</a></li></ul></li> <li><a href="/wiki/List_of_chess_books" title="List of chess books">Chess books</a> <ul><li><a href="/wiki/Chess_opening_book" title="Chess opening book">opening books</a></li> <li><a href="/wiki/Chess_endgame_literature" title="Chess endgame literature">endgame literature</a></li> <li><a href="/wiki/The_Oxford_Companion_to_Chess" title="The Oxford Companion to Chess"><i>Oxford Companion</i></a></li></ul></li> <li><a href="/wiki/Chess_libraries" title="Chess libraries">Chess libraries</a></li> <li><a href="/wiki/Chess_columns_in_newspapers" title="Chess columns in newspapers">Chess newspaper columns</a></li> <li><a href="/wiki/List_of_chess_periodicals" title="List of chess periodicals">Chess periodicals</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Arbiter_(chess)" title="Arbiter (chess)">Arbiter</a></li> <li><a href="/wiki/Chess_boxing" title="Chess boxing">Chess boxing</a></li> <li><a href="/wiki/Chess_club" title="Chess club">Chess club</a></li> <li><a href="/wiki/Chess_composer" title="Chess composer">Chess composer</a></li> <li><a href="/wiki/Chess_engine" title="Chess engine">Chess engine</a> <ul><li><a href="/wiki/AlphaZero" title="AlphaZero">AlphaZero</a></li> <li><a href="/wiki/Deep_Blue_(chess_computer)" title="Deep Blue (chess computer)">Deep Blue</a></li> <li><a href="/wiki/Leela_Chess_Zero" title="Leela Chess Zero">Leela Chess Zero</a></li> <li><a href="/wiki/Stockfish_(chess)" title="Stockfish (chess)">Stockfish</a></li></ul></li> <li><a href="/wiki/Chess_problem" title="Chess problem">Chess problem</a> <ul><li><a href="/wiki/Glossary_of_chess_problems" title="Glossary of chess problems">glossary</a></li> <li><a href="/wiki/Joke_chess_problem" title="Joke chess problem">joke chess</a></li></ul></li> <li><a href="/wiki/Chess_prodigy" title="Chess prodigy">Chess prodigy</a></li> <li><a href="/wiki/Elo_rating_system" title="Elo rating system">Elo rating system</a></li> <li><a href="/wiki/Simultaneous_exhibition" title="Simultaneous exhibition">Simultaneous exhibition</a></li> <li><a href="/wiki/Solving_chess" title="Solving chess">Solving chess</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><span 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