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data-mw-deduplicate="TemplateStyles:r1236090951">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable">See also: <a href="/wiki/Glossary_of_contract_bridge_terms" title="Glossary of contract bridge terms">Glossary of contract bridge terms</a></div> <p>A <b>bidding system</b> in <a href="/wiki/Contract_bridge" title="Contract bridge">contract bridge</a> is the set of <a href="/wiki/Glossary_of_contract_bridge_terms#agreement" title="Glossary of contract bridge terms">agreements</a> and understandings assigned to <a href="/wiki/Glossary_of_contract_bridge_terms#call" title="Glossary of contract bridge terms">calls</a> and sequences of calls used by a <a href="/wiki/Glossary_of_contract_bridge_terms#partnership" title="Glossary of contract bridge terms">partnership</a>, and includes a full description of the meaning of each <a href="/wiki/Glossary_of_contract_bridge_terms#treatment" title="Glossary of contract bridge terms">treatment</a> and <a href="/wiki/Glossary_of_contract_bridge_terms#convention" title="Glossary of contract bridge terms">convention</a>. The purpose of bidding is for each partnership to ascertain which contract, whether made or defeated and whether bid by them or by their opponents, would give the partnership their best scoring result. </p><p>Each bidding system ascribes a meaning to every possible call by each member of a partnership, and presents a codified language which allows the players to exchange information about their card holdings. The vocabulary of <a href="/wiki/Glossary_of_contract_bridge_terms#bidding" title="Glossary of contract bridge terms">bidding</a> is limited to 38 different calls - 35 level/denomination <i>bids</i><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> plus <i>pass</i>, <i>double</i> and <i>redouble</i>. Any bid becomes a contract if followed by three successive passes, therefore every bridge bid is a potential contract. </p><p>By the rules of the game, the agreed <a href="/wiki/Semantics" title="Semantics">meanings</a> of all calls must be public and known to the opponents. In normal club or home play, the opponents are entitled, at their turn to make a call, to ask the partner of the bidder about the meaning of the call. In high-level tournaments, where <a href="/wiki/Screen_(bridge)" title="Screen (bridge)">screens</a> are used, the procedure is to ask the screen-mate about their calls as well as their partner's calls. In serious online tournaments, the procedure is for the player making the call to self-alert it, but the explanation is visible only to the opponents. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Classification">Classification</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Bidding_system&action=edit&section=1" title="Edit section: Classification"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Bidding systems can be classified into two broad categories: <i>natural</i> systems and <i>artificial</i> systems. In natural systems, most bids (especially in the early phase of the bidding) denote length in the <a href="/wiki/Suit_(cards)" class="mw-redirect" title="Suit (cards)">suit</a> bid. In artificial systems, the bids are more highly codified, so that for example a bid of 1<span style="color:black" class="clubs" title="clubs">♣</span> may not be related to a holding in the club suit. </p><p>Natural system(s) are the "<a href="/wiki/Lingua_franca" title="Lingua franca">lingua franca</a>" of bridge players, with regional variations. Thus, a new partnership can agree to play a natural system and understand each other fairly well. Players sometimes alter certain aspects of a system, adding their specific agreements or preferred conventions. </p><p>Structure and meaning of opening bids are the common determining factor for system classification: in most modern natural systems, opening bids of 1<span style="color:black" class="clubs" title="clubs">♣</span> through 2<span style="color:black" class="clubs" title="clubs">♣</span> have the same or similar meaning, with level-one bids denoting length in a suit. Artificial systems typically reserve at least one one-level suit opening bid for special purposes, unrelated to the suit. </p> <div class="mw-heading mw-heading3"><h3 id="Natural_systems">Natural systems</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Bidding_system&action=edit&section=2" title="Edit section: Natural systems"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Natural systems</b> generally use opening bids as follows: </p> <ul><li>A bid of 1<span style="color: red" class="hearts" title="hearts">♥</span> or 1<span style="color:black" class="spades" title="spades">♠</span> shows at least 4 or 5 cards in the <a href="/wiki/Major_suit" title="Major suit">major suit</a>, and 1<span style="color:black" class="clubs" title="clubs">♣</span> or 1<span style="color:red" class="diamonds" title="diamonds">♦</span> shows at least 3 or 4 cards in the <a href="/wiki/Minor_suit" title="Minor suit">minor suit</a>. The complete hand usually contains about (11)12-20(22) <a href="/wiki/High_card_points" class="mw-redirect" title="High card points">high card points</a>. As between two major suits or between two minor suits, the bidder opens in the longer suit; with equal lengths, the higher ranking suit is usually chosen. If the opening bid of 1<span style="color: red" class="hearts" title="hearts">♥</span> or 1<span style="color:black" class="spades" title="spades">♠</span> promises 5 cards, the system is referred to as a "<a href="#5majors">five-card major</a>" system; otherwise, it is referred to as a "<a href="#4majors">four-card major</a>" system. The term <i>five-card majors</i> implies that an opening bid in a minor suit bid might show three card length only (for example, the hand pattern might be 4=4=2=3, so neither major suit is long enough to show with an opening bid).</li> <li>A bid of 1NT shows a balanced hand in a narrow <a href="/wiki/High_card_points" class="mw-redirect" title="High card points">high card points</a> (HCP) range. The common ranges are 15-17 or 16-18 HCP ("<a href="/wiki/Glossary_of_contract_bridge_terms#strongnotrump" title="Glossary of contract bridge terms">strong notrump</a>") and 12-14 ("<a href="#weaknotrump">weak notrump</a>").</li> <li>A bid of <a href="/wiki/Two_club_bid" class="mw-redirect" title="Two club bid">2<span style="color:black" class="clubs" title="clubs">♣</span></a> typically shows a very strong hand (22+ points).</li> <li>A bid of 2NT shows a strong balanced hand, usually 20-21 HCP.</li> <li>Opening bids of 3 of any suit are <a href="/wiki/Preempt" title="Preempt">preemptive</a>, showing a 7+ card suit and 6-10 points (mostly inside the bid suit).</li> <li>The meaning of 2<span style="color:red" class="diamonds" title="diamonds">♦</span>, 2<span style="color: red" class="hearts" title="hearts">♥</span> and 2<span style="color:black" class="spades" title="spades">♠</span> varies. One common usage is that the bid shows a <a href="/wiki/Weak_two_bid" title="Weak two bid">weak two bid</a>, similar to a <a href="/wiki/Preempt" title="Preempt">preemptive</a> bid. Another is the <a href="/wiki/Strong_two_bid" title="Strong two bid">strong two bid</a>, which is natural and shows a very strong hand (too strong for a 1-level opening). Yet another usage, popular in otherwise natural systems, is to use weak two bids in the major suits, and 2<span style="color:red" class="diamonds" title="diamonds">♦</span> as <a href="/wiki/Flannery" title="Flannery">Flannery</a>: four spades and five hearts in a hand of minimum strength.</li></ul> <div class="mw-heading mw-heading4"><h4 id="Specific_systems">Specific systems</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Bidding_system&action=edit&section=3" title="Edit section: Specific systems"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The most widespread natural systems are: </p> <ul><li><a href="/wiki/Acol" title="Acol">Acol</a>, featuring 4-card majors and weak notrump, originating in Great Britain</li> <li><a href="/wiki/Standard_American" title="Standard American">Standard American</a>, originally with 4-card majors but later adopting 5-card majors. Strong notrump.</li> <li><a href="/wiki/Bridge_Base_Basic" title="Bridge Base Basic">Bridge Base Basic</a>, based on Standard American and used in internet play</li> <li><a href="/wiki/2/1_game_forcing" title="2/1 game forcing">2/1 game forcing</a>, based on Standard American and gradually superseding it. Some features of <i>2/1 game forcing</i> originated from the <a href="/w/index.php?title=Roth%E2%80%93Stone&action=edit&redlink=1" class="new" title="Roth–Stone (page does not exist)">Roth–Stone</a> and <a href="/wiki/Kaplan%E2%80%93Sheinwold" title="Kaplan–Sheinwold">Kaplan–Sheinwold</a> systems of the 1950s and 1960s.</li></ul> <p>Various developments in the area of natural systems have resulted in systems that are natural in essence, but contain special features. Examples are systems like <a href="/wiki/Romex_system" title="Romex system">Romex</a>, <a href="/wiki/Boring_Club" title="Boring Club">Boring Club</a>, <a href="/wiki/Fantunes" title="Fantunes">Fantunes</a>, and <a href="/wiki/EHAA" title="EHAA">EHAA</a> (Every Hand An Adventure). </p> <div class="mw-heading mw-heading3"><h3 id="Artificial_systems">Artificial systems</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Bidding_system&action=edit&section=4" title="Edit section: Artificial systems"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Artificial systems</b> can be further classified into: </p> <ul><li><b><a href="/wiki/Strong_club_system" title="Strong club system">Strong club systems</a></b> are the most popular artificial systems, where opening of 1<span style="color:black" class="clubs" title="clubs">♣</span> shows a strong hand (typically 16+ HCP). Other 1-level bids are typically natural, but limited to about 15 HCP. The most popular strong club systems are: <ul><li><a href="/wiki/Vanderbilt_Club" title="Vanderbilt Club">Vanderbilt Club</a> (the predecessor)</li> <li><a href="/wiki/Precision_Club" title="Precision Club">Precision Club</a></li> <li><a href="/wiki/Blue_Club" title="Blue Club">Blue Club</a></li></ul></li> <li>In <b><a href="/wiki/Small_club_system" class="mw-redirect" title="Small club system">Small club systems</a></b>, the opening bid of 1<span style="color:black" class="clubs" title="clubs">♣</span> is <a href="/wiki/Forcing_bid" title="Forcing bid">forcing</a> but not necessarily strong. It typically includes some range of balanced hands, some hands with long club suit, and very strong hands. Examples are: <ul><li><a href="/wiki/Vienna_System" title="Vienna System">Vienna System</a> (the predecessor)</li> <li><a href="/wiki/Roman_Club" title="Roman Club">Roman Club</a>, developed and used by famous <a href="/wiki/Blue_Team_(bridge)" title="Blue Team (bridge)">Blue Team</a></li> <li><a href="/wiki/Polish_Club" title="Polish Club">Polish Club</a>, originating (and standard) in <a href="/wiki/Poland" title="Poland">Poland</a> but also gained certain popularity worldwide.</li> <li><a href="/w/index.php?title=Dutch_doubleton&action=edit&redlink=1" class="new" title="Dutch doubleton (page does not exist)">Dutch doubleton</a>, an offspring of the Polish Club system</li> <li><a href="/w/index.php?title=SAYC%2B&action=edit&redlink=1" class="new" title="SAYC+ (page does not exist)">SAYC+</a>, Based on Standard American but with the 1<span style="color:black" class="clubs" title="clubs">♣</span> forcing and including all 21+ hands too. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20180516060156/http://www.forcingclub.co.uk/">Forcing Club</a></li></ul></li> <li><b>Strong diamond systems</b> are similar to strong club systems, but the bid of 1<span style="color:red" class="diamonds" title="diamonds">♦</span> shows a strong opening, typically 16+ and the bid of 1<span style="color:black" class="clubs" title="clubs">♣</span> is typically nebulous. This gives more room over the nebulous 1<span style="color:black" class="clubs" title="clubs">♣</span> opening compared to the strong club's nebulous 1<span style="color:red" class="diamonds" title="diamonds">♦</span> opening. There are several examples listed here <a rel="nofollow" class="external text" href="https://web.archive.org/web/20180815143913/http://www.strongdiamond.co.uk/">www.strongdiamond.co.uk</a>.</li> <li><b><a href="/wiki/Strong_pass" title="Strong pass">Strong pass</a> systems</b> are based on the idea that 8-12 HCP hands are the most frequent (about 45% chance to hold such a hand). Most of the initial opening bids describe this range, while strong (13+ HCP) hands (28% of the hands) start with PASS, the lowest available call. Weak (0-7 HCP) hands are opened with one other bid, often 1<span style="color:red" class="diamonds" title="diamonds">♦</span>. Of course partner in 3rd or 4th place will never pass a strong PASS "opening", thus 3rd and 4th place "openings" are different. Strong pass systems were popular in Poland in the 1960s and 1970s, before the restrictions. These systems are often relay-based, but it is not a necessity, their main advantage is that they initiate with the most frequent intermediate hands and rob some bidding space with the weak ones.<br />Strong pass systems are mostly banned by <a href="/wiki/World_Bridge_Federation" title="World Bridge Federation">World Bridge Federation</a> and other governing organizations from all competitions except the highest-level ones, because opponents cannot be reasonably expected to cope with such an unusual approach. <i>See: <a href="/wiki/Highly_unusual_method" title="Highly unusual method">Highly unusual method</a></i></li> <li><b>Relay systems</b> are based on <a href="/wiki/Relay_bid" title="Relay bid">relay bids</a> – the artificial bids where one partner just bids the cheapest denomination (<i>relay bid</i>) and the other describes his distribution and high cards in detail (<i>relay response</i>) using a highly codified scheme. Such systems are out of the above classification (based on opening bid structure), as the relay feature takes place later in the auction. For example, relatively popular "Moscito system" has variants based on <a rel="nofollow" class="external text" href="http://www.jackbridge.com/esupmosc.htm">strong-club</a> and <a rel="nofollow" class="external text" href="https://web.archive.org/web/20060225064113/http://www.bridgeguys.com/Conventions/MoscitoSystem.html">strong-pass</a> approaches. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20051124033703/http://jimloy.com/bridge/symmetrc.htm">Symmetric relay</a> is based on Precision club. Relay systems do not need to begin with an initial forcing pass or an initial forcing 1<span style="color:black" class="clubs" title="clubs">♣</span> opening. The ACBL typically disallows relay systems, on the grounds that they are too difficult to defend against without a lot of advance preparation.</li></ul> <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=Bidding_system&action=edit&section=5" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Bridge_conventions" class="mw-redirect" title="Bridge conventions">Bridge conventions</a></li> <li><a href="/wiki/List_of_bidding_systems" title="List of bidding systems">List of bidding systems</a></li> <li><a href="/wiki/Standard_American" title="Standard American">Standard American</a></li> <li><a href="/wiki/Acol" title="Acol">Acol</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Notes">Notes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Bidding_system&action=edit&section=6" title="Edit section: Notes"><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"> <div class="mw-references-wrap"><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">A <b>bid</b> consists of two components — the level in range of 1-7, and one of five denominations: clubs (<span style="color:black" class="clubs" title="clubs">♣</span>), diamonds (<span style="color:red" class="diamonds" title="diamonds">♦</span>), hearts (<span style="color: red" class="hearts" title="hearts">♥</span>), spades (<span style="color:black" class="spades" title="spades">♠</span>) and notrump (NT)</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Bidding_system&action=edit&section=7" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20060112043337/http://www.bridgeguys.com/Conventions/BiddingSystems.html">List of bidding systems on BridgeGuys</a></li> <li><a rel="nofollow" class="external text" href="http://www.clairebridge.com/encheresetsystemes.htm">List of bidding systems on ClaireBridge</a></li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20080513105047/http://www.google.com/base/a/1121639/D15019277576476909594">A classification of natural bidding systems</a></li> <li><a rel="nofollow" class="external text" href="http://bridge.downagain.be/FD/">List of bidding systems in 'Full-disclosure' (BBO compatible) format</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output 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.navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Index_of_contract_bridge_articles" title="Template:Index of contract bridge articles"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Index_of_contract_bridge_articles" title="Template talk:Index of contract bridge articles"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Index_of_contract_bridge_articles" title="Special:EditPage/Template:Index of contract bridge articles"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Contract_bridge" style="font-size:114%;margin:0 4em"><a href="/wiki/Contract_bridge" title="Contract bridge">Contract bridge</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Overview" style="font-size:114%;margin:0 4em">Overview</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;background:transparent; text-align:left;"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="General" scope="row" class="navbox-group" style="width:1%">General</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/Auction_bridge" title="Auction bridge">Auction bridge</a></li> <li><a href="/wiki/Bridge_ethics" title="Bridge ethics">Bridge ethics</a></li> <li><a href="/wiki/Bridge-O-Rama" title="Bridge-O-Rama">Bridge-O-Rama</a></li> <li><a href="/wiki/Bridge_maxims" title="Bridge maxims">Bridge maxims</a></li> <li><a href="/wiki/Bridge_Murder_case" title="Bridge Murder case">Bridge Murder case</a></li> <li><a href="/wiki/Bridge_scoring" title="Bridge scoring">Bridge scoring</a></li> <li><a href="/wiki/Bridge_whist" title="Bridge whist">Bridge whist</a></li> <li><a href="/wiki/Bridgette_(game)" title="Bridgette (game)">Bridgette</a></li> <li><a href="/wiki/Cheating_in_bridge" title="Cheating in bridge">Cheating in bridge</a></li> <li><a href="/wiki/Chicago_(bridge_card_game)" title="Chicago (bridge card game)">Chicago</a></li> <li><a href="/wiki/Computer_bridge" title="Computer bridge">Computer bridge</a></li> <li><a href="/wiki/Contract_bridge" title="Contract bridge">Contract bridge</a></li> <li><a href="/wiki/Contract_bridge_diagram" title="Contract bridge diagram">Contract bridge diagram</a></li> <li><a href="/wiki/Duplicate_bridge" title="Duplicate bridge">Duplicate bridge</a></li> <li><a href="/wiki/Duplicate_bridge_movements" title="Duplicate bridge movements">Duplicate bridge movements</a></li> <li><a href="/wiki/Five-suit_bridge" title="Five-suit bridge">Five-suit bridge</a></li> <li><a href="/wiki/Goulash_(bridge)" title="Goulash (bridge)">Goulash</a></li> <li><a href="/wiki/Glossary_of_contract_bridge_terms" title="Glossary of contract bridge terms">Glossary of contract bridge terms</a></li> <li><a href="/wiki/High_card_by_suit" title="High card by suit">High card by suit</a></li> <li><a href="/wiki/History_of_contract_bridge" title="History of contract bridge">History of contract bridge</a></li> <li><a href="/wiki/Laws_of_Duplicate_Bridge" title="Laws of Duplicate Bridge">Laws of Duplicate Bridge</a></li> <li><a href="/wiki/Masterpoints" title="Masterpoints">Masterpoints</a></li> <li><a href="/wiki/Minibridge" title="Minibridge">Minibridge</a></li> <li><a href="/wiki/Neuberg_formula" title="Neuberg formula">Neuberg formula</a></li> <li><a href="/wiki/Rubber_bridge" title="Rubber bridge">Rubber bridge</a></li> <li><a href="/wiki/Screen_(bridge)" title="Screen (bridge)">Screen</a></li> <li><a href="/wiki/Singaporean_bridge" title="Singaporean bridge">Singaporean bridge</a></li> <li><a href="/wiki/Suit_(cards)" class="mw-redirect" title="Suit (cards)">Suit</a></li> <li><a href="/wiki/Traveling_scoreslip" title="Traveling scoreslip">Traveling scoreslip</a></li> <li><a href="/wiki/Trump_(card_games)" title="Trump (card games)">Trump</a></li> <li><a href="/wiki/Vugraph" title="Vugraph">Vugraph</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Bidding" style="font-size:114%;margin:0 4em">Bidding</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;background:transparent; text-align:left;"><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%">General</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/Balanced_hand" title="Balanced hand">Balanced hand</a></li> <li><a href="/wiki/Balancing_(bridge)" title="Balancing (bridge)">Balancing (bridge)</a></li> <li><a href="/wiki/Bidding_box" title="Bidding box">Bidding box</a></li> <li><a class="mw-selflink selflink">Bidding system</a></li> <li><a href="/wiki/Board_(bridge)" title="Board (bridge)">Board (bridge)</a></li> <li><a href="/wiki/Bridge_convention" title="Bridge convention">Bridge convention</a></li> <li><a href="/wiki/Brown_sticker" title="Brown sticker">Brown sticker</a></li> <li><a href="/wiki/Convention_card" title="Convention card">Convention card</a></li> <li><a href="/wiki/Cue_bid" title="Cue bid">Cue bid</a></li> <li><a href="/wiki/Five-card_majors" title="Five-card majors">Five-card majors</a></li> <li><a href="/wiki/Forcing_bid" title="Forcing bid">Forcing bid</a></li> <li><a href="/wiki/Forcing_pass" title="Forcing pass">Forcing pass</a></li> <li><a href="/wiki/Game_try" title="Game try">Game try</a></li> <li><a href="/wiki/Hand_evaluation" title="Hand evaluation">Hand evaluation</a></li> <li><a href="/wiki/Honor_point_count" title="Honor point count">Honor point count</a></li> <li><a href="/wiki/Inverted_minors" title="Inverted minors">Inverted minors</a></li> <li><a href="/wiki/Law_of_total_tricks" title="Law of total tricks">Law of total tricks</a></li> <li><a href="/wiki/Losing-Trick_Count" title="Losing-Trick Count">Losing-Trick Count</a></li> <li><a href="/wiki/Major_suit" title="Major suit">Major suit</a></li> <li><a href="/wiki/Minor_suit" title="Minor suit">Minor suit</a></li> <li><a href="/wiki/Optimum_contract_and_par_contract" title="Optimum contract and par contract">Optimum contract and par contract</a></li> <li><a href="/wiki/Overcall" title="Overcall">Overcall</a></li> <li><a href="/wiki/Preempt" title="Preempt">Preempt</a></li> <li><a href="/wiki/Prepared_opening_bid" title="Prepared opening bid">Prepared opening bid</a></li> <li><a href="/wiki/Principle_of_fast_arrival" title="Principle of fast arrival">Principle of fast arrival</a></li> <li><a href="/wiki/Psychic_bid" title="Psychic bid">Psychic bid</a></li> <li><a href="/wiki/Quantitative_notrump_bids" title="Quantitative notrump bids">Quantitative notrump bids</a></li> <li><a href="/wiki/Reverse_(bridge)" title="Reverse (bridge)">Reverse (bridge)</a></li> <li><a href="/wiki/Sacrifice_(bridge)" title="Sacrifice (bridge)">Sacrifice (bridge)</a></li> <li><a href="/wiki/Shooting_(bridge)" title="Shooting (bridge)">Shooting (bridge)</a></li> <li><a href="/wiki/Single_suiter" title="Single suiter">Single suiter</a></li> <li><a href="/wiki/Stolen_bid" title="Stolen bid">Stolen bid</a></li> <li><a href="/wiki/Strong_pass" title="Strong pass">Strong pass</a></li> <li><a href="/wiki/Takeout_double" title="Takeout double">Takeout double</a></li> <li><a href="/wiki/Three_suiter" title="Three suiter">Three suiter</a></li> <li><a href="/wiki/Two_suiter" title="Two suiter">Two suiter</a></li> <li><a href="/wiki/Useful_space_principle" title="Useful space principle">Useful space principle</a></li> <li><a href="/wiki/Void_(cards)" title="Void (cards)">Void (cards)</a></li> <li><a href="/wiki/Weak_two_bid" title="Weak two bid">Weak two bid</a></li> <li><a href="/wiki/Zar_Points" title="Zar Points">Zar Points</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Systems</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/List_of_bidding_systems" title="List of bidding systems">List of bidding systems</a></li> <li><a href="/wiki/2/1_game_forcing" title="2/1 game forcing">2/1 game forcing</a></li> <li><a href="/wiki/Acol" title="Acol">Acol</a></li> <li><a class="mw-selflink selflink">Bidding system</a></li> <li><a href="/wiki/Blue_Club" title="Blue Club">Blue Club</a></li> <li><a href="/wiki/Boring_Club" title="Boring Club">Boring Club</a></li> <li><a href="/wiki/Bridge_Base_Basic" title="Bridge Base Basic">Bridge Base Basic</a></li> <li><a href="/wiki/Bridge_World_Standard" title="Bridge World Standard">Bridge World Standard</a></li> <li><a href="/wiki/Canap%C3%A9_(bridge)" title="Canapé (bridge)">Canapé (bridge)</a></li> <li><a href="/wiki/Carrot_Club" title="Carrot Club">Carrot Club</a></li> <li><a href="/wiki/EHAA" title="EHAA">EHAA</a></li> <li><a href="/wiki/Fantunes" title="Fantunes">Fantunes</a></li> <li><a href="/wiki/Highly_unusual_method" title="Highly unusual method">Highly unusual method</a></li> <li><a href="/wiki/Kaplan%E2%80%93Sheinwold" title="Kaplan–Sheinwold">Kaplan–Sheinwold</a></li> <li><a href="/wiki/Little_Major" title="Little Major">Little Major</a></li> <li><a href="/wiki/Moscito" title="Moscito">Moscito</a></li> <li><a href="/wiki/Polish_Club" title="Polish Club">Polish Club</a></li> <li><a href="/wiki/Precision_Club" title="Precision Club">Precision Club</a></li> <li><a href="/wiki/Roman_Club" title="Roman Club">Roman Club</a></li> <li><a href="/wiki/Romex_system" title="Romex system">Romex system</a></li> <li><a href="/wiki/S%C3%A4ffle_Spade" title="Säffle Spade">Säffle Spade</a></li> <li><a href="/wiki/Standard_American" title="Standard American">Standard American</a></li> <li><a href="/wiki/Strong_club_system" title="Strong club system">Strong club system</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Conventions</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/Category:Bridge_conventions" title="Category:Bridge conventions">List of bidding conventions</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Card_play" style="font-size:114%;margin:0 4em">Card play</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;background:transparent; text-align:left;"><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%">General</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_play_techniques_(bridge)" title="List of play techniques (bridge)">List of play techniques</a></li> <li><a href="/wiki/Avoidance_play" title="Avoidance play">Avoidance play</a></li> <li><a href="/wiki/Beer_card" title="Beer card">Beer card</a></li> <li><a href="/wiki/Caddy_(bridge)" title="Caddy (bridge)">Caddy</a></li> <li><a href="/wiki/Card_reading_(bridge)" title="Card reading (bridge)">Card reading</a></li> <li><a href="/wiki/Duck_(bridge)" title="Duck (bridge)">Duck</a></li> <li><a href="/wiki/Endplay" title="Endplay">Endplay</a></li> <li><a href="/wiki/Entry_(cards)" title="Entry (cards)">Entry</a></li> <li><a href="/wiki/Grosvenor_gambit" title="Grosvenor gambit">Grosvenor gambit</a></li> <li><a href="/wiki/Hold_up_(bridge)" title="Hold up (bridge)">Hold up</a></li> <li><a href="/wiki/Percentage_play" title="Percentage play">Percentage play</a></li> <li><a href="/wiki/Pin_(bridge)" title="Pin (bridge)">Pin (bridge)</a></li> <li><a href="/wiki/Principle_of_restricted_choice" title="Principle of restricted choice">Principle of restricted choice</a></li> <li><a href="/wiki/Contract_bridge_probabilities" title="Contract bridge probabilities">Probabilities</a></li> <li><a href="/wiki/Revoke" title="Revoke">Revoke</a></li> <li><a href="/wiki/Ruff_(cards)" title="Ruff (cards)">Ruff</a></li> <li><a href="/wiki/Shooting_(bridge)" title="Shooting (bridge)">Shooting</a></li> <li><a href="/wiki/Smother_play" title="Smother play">Smother play</a></li> <li><a href="/wiki/Tempo_(bridge)" title="Tempo (bridge)">Tempo</a></li> <li><a href="/wiki/Trump_promotion" title="Trump promotion">Trump promotion</a></li> <li><a href="/wiki/Uppercut_(bridge)" title="Uppercut (bridge)">Uppercut</a></li> <li><a href="/wiki/Vacant_Places" title="Vacant Places">Vacant Places</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Declarer play</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><b><span class="tmp-color" style="color:blue"><span class="smallcaps">Basic:</span></span></b></li> <li><a href="/wiki/Finesse" title="Finesse">Finesse</a></li> <li><a href="/wiki/Safety_play" title="Safety play">Safety play</a></li> <li><b><span class="tmp-color" style="color:blue"><span class="smallcaps">Coups:</span></span></b></li> <li><a href="/wiki/Alcatraz_coup" title="Alcatraz coup">Alcatraz coup</a></li> <li><a href="/wiki/Bath_coup" title="Bath coup">Bath coup</a></li> <li><a href="/wiki/Belladonna_coup" title="Belladonna coup">Belladonna coup</a></li> <li><a href="/wiki/Coup_(bridge)" title="Coup (bridge)">Coup</a></li> <li><a href="/wiki/Coup_en_passant" title="Coup en passant">Coup en passant</a></li> <li><a href="/wiki/Crocodile_coup" title="Crocodile coup">Crocodile coup</a></li> <li><a href="/wiki/Deschapelles_coup" title="Deschapelles coup">Deschapelles coup</a></li> <li><a href="/wiki/Devil%27s_coup" title="Devil's coup">Devil's coup</a></li> <li><a href="/wiki/Loser_on_loser" title="Loser on loser">Loser on loser</a></li> <li><a href="/wiki/Merrimac_coup" title="Merrimac coup">Merrimac coup</a></li> <li><a href="/wiki/Morton%27s_fork_coup" title="Morton's fork coup">Morton's fork coup</a></li> <li><a href="/wiki/Scissors_coup" title="Scissors coup">Scissors coup</a></li> <li><a href="/wiki/Trump_coup" title="Trump coup">Trump coup</a></li> <li><a href="/wiki/Vienna_coup" title="Vienna coup">Vienna coup</a></li> <li><b><span class="tmp-color" style="color:blue"><span class="smallcaps">Squeezes:</span></span></b></li> <li><a href="/wiki/Backwash_squeeze" title="Backwash squeeze">Backwash squeeze</a></li> <li><a href="/wiki/Cannibal_squeeze" title="Cannibal squeeze">Cannibal squeeze</a></li> <li><a href="/wiki/Clash_squeeze" title="Clash squeeze">Clash squeeze</a></li> <li><a href="/wiki/Compound_squeeze" title="Compound squeeze">Compound squeeze</a></li> <li><a href="/wiki/Criss-cross_squeeze" title="Criss-cross squeeze">Criss-cross squeeze</a></li> <li><a href="/wiki/Double_squeeze" title="Double squeeze">Double squeeze</a></li> <li><a href="/wiki/Entry_squeeze" title="Entry squeeze">Entry squeeze</a></li> <li><a href="/wiki/Entry-shifting_squeeze" title="Entry-shifting squeeze">Entry-shifting squeeze</a></li> <li><a href="/wiki/Guard_squeeze" title="Guard squeeze">Guard squeeze</a></li> <li><a href="/wiki/Knockout_squeeze" title="Knockout squeeze">Knockout squeeze</a></li> <li><a href="/wiki/Non-simultaneous_double_squeeze" title="Non-simultaneous double squeeze">Non-simultaneous double squeeze</a></li> <li><a href="/wiki/Progressive_squeeze" title="Progressive squeeze">Progressive squeeze</a></li> <li><a href="/wiki/Pseudo-squeeze" title="Pseudo-squeeze">Pseudo-squeeze</a></li> <li><a href="/wiki/Saturated_squeeze" title="Saturated squeeze">Saturated squeeze</a></li> <li><a href="/wiki/Simple_squeeze" title="Simple squeeze">Simple squeeze</a></li> <li><a href="/wiki/Simultaneous_double_squeeze" title="Simultaneous double squeeze">Simultaneous double squeeze</a></li> <li><a href="/wiki/Single-suit_squeeze" title="Single-suit squeeze">Single-suit squeeze</a></li> <li><a href="/wiki/Squeeze_play_(bridge)" title="Squeeze play (bridge)">Squeeze play</a></li> <li><a href="/wiki/Stepping-stone_squeeze" title="Stepping-stone squeeze">Stepping-stone squeeze</a></li> <li><a href="/wiki/Strip_squeeze" title="Strip squeeze">Strip squeeze</a></li> <li><a href="/wiki/Triple_squeeze" title="Triple squeeze">Triple squeeze</a></li> <li><a href="/wiki/Trump_squeeze" title="Trump squeeze">Trump squeeze</a></li> <li><a href="/wiki/Vice_squeeze" title="Vice squeeze">Vice squeeze</a></li> <li><a href="/wiki/Winkle_squeeze" title="Winkle squeeze">Winkle squeeze</a></li> <li><b><span class="tmp-color" style="color:blue"><span class="smallcaps">Suit combinations:</span></span></b></li> <li><a href="/wiki/Suit_combination" title="Suit combination">Suit combination</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Defender play</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/Forcing_defense" title="Forcing defense">Forcing defense</a></li> <li><a href="/wiki/Journalist_leads" title="Journalist leads">Journalist leads</a></li> <li><a href="/wiki/Opening_lead" title="Opening lead">Opening lead</a></li> <li><a href="/wiki/Rule_of_10-12" title="Rule of 10-12">Rule of 10-12</a></li> <li><a href="/wiki/Rule_of_11" title="Rule of 11">Rule of 11</a></li> <li><a href="/wiki/Rusinow_leads" title="Rusinow leads">Rusinow leads</a></li> <li><a href="/wiki/Signal_(bridge)" title="Signal (bridge)">Signal</a></li> <li><a href="/wiki/Smith_signal" title="Smith signal">Smith signal</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="People_and_organizations" style="font-size:114%;margin:0 4em">People and organizations</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;background:transparent; text-align:left;"><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%">General</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/ACBL_Youngest_Life_Master" title="ACBL Youngest Life Master">ACBL Youngest Life Master</a></li> <li><a href="/wiki/List_of_contract_bridge_people" title="List of contract bridge people">List of contract bridge people</a></li> <li><a href="/wiki/List_of_sportspeople_who_competed_for_more_than_one_country#Bridge" class="mw-redirect" title="List of sportspeople who competed for more than one country">List of nationality transfers in sport</a></li> <li><a href="/wiki/Bridge_Headquarters" title="Bridge Headquarters">Bridge Headquarters</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Players by country</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/Category:Australian_contract_bridge_players" title="Category:Australian contract bridge players">Australia</a></li> <li><a href="/wiki/Category:Austrian_contract_bridge_players" title="Category:Austrian contract bridge players">Austria</a></li> <li><a href="/wiki/Category:Brazilian_contract_bridge_players" title="Category:Brazilian contract bridge players">Brazil</a></li> <li><a href="/wiki/Category:British_contract_bridge_players" title="Category:British contract bridge players">Britain</a></li> <li><a href="/wiki/Category:Bulgarian_contract_bridge_players" title="Category:Bulgarian contract bridge players">Bulgaria</a></li> <li><a href="/wiki/Category:Canadian_contract_bridge_players" title="Category:Canadian contract bridge players">Canada</a></li> <li><a href="/wiki/Category:Chinese_contract_bridge_players" title="Category:Chinese contract bridge players">China</a></li> <li><a href="/wiki/Category:Danish_contract_bridge_players" title="Category:Danish contract bridge players">Denmark</a></li> <li><a href="/wiki/Category:Dutch_contract_bridge_players" title="Category:Dutch contract bridge players">Netherlands</a></li> <li><a href="/wiki/Category:Egyptian_contract_bridge_players" title="Category:Egyptian contract bridge players">Egypt</a></li> <li><a href="/wiki/Category:English_contract_bridge_players" title="Category:English contract bridge players">England</a></li> <li><a href="/wiki/Category:Fictional_contract_bridge_players" title="Category:Fictional contract bridge players">Fiction</a></li> <li><a href="/wiki/Category:French_contract_bridge_players" title="Category:French contract bridge players">France</a></li> <li><a href="/wiki/Category:German_contract_bridge_players" title="Category:German contract bridge players">Germany</a></li> <li><a href="/wiki/Category:Hungarian_contract_bridge_players" title="Category:Hungarian contract bridge players">Hungary</a></li> <li><a href="/wiki/Category:Indian_contract_bridge_players" title="Category:Indian contract bridge players">India</a></li> <li><a href="/wiki/Category:Irish_contract_bridge_players" title="Category:Irish contract bridge players">Ireland</a></li> <li><a href="/wiki/Category:Israeli_contract_bridge_players" title="Category:Israeli contract bridge players">Israel</a></li> <li><a href="/wiki/Category:Italian_contract_bridge_players" title="Category:Italian contract bridge players">Italy</a></li> <li><a href="/wiki/Category:Mexican_contract_bridge_players" title="Category:Mexican contract bridge players">Mexico</a></li> <li><a href="/wiki/Category:Monegasque_contract_bridge_players" title="Category:Monegasque contract bridge players">Monaco</a></li> <li><a href="/wiki/Category:New_Zealand_contract_bridge_players" title="Category:New Zealand contract bridge players">New Zealand</a></li> <li><a href="/wiki/Category:Norwegian_contract_bridge_players" title="Category:Norwegian contract bridge players">Norway</a></li> <li><a href="/wiki/Category:Pakistani_contract_bridge_players" title="Category:Pakistani contract bridge players">Pakistan</a></li> <li><a href="/wiki/Category:Polish_contract_bridge_players" title="Category:Polish contract bridge players">Poland</a></li> <li><a href="/wiki/Category:Russian_contract_bridge_players" title="Category:Russian contract bridge players">Russia</a></li> <li><a href="/wiki/Category:Swedish_contract_bridge_players" title="Category:Swedish contract bridge players">Sweden</a></li> <li><a href="/wiki/Category:Swiss_contract_bridge_players" title="Category:Swiss contract bridge players">Switzerland</a></li> <li><a href="/wiki/Category:Taiwanese_contract_bridge_players" title="Category:Taiwanese contract bridge players">Taiwan</a></li> <li><a href="/wiki/Category:American_contract_bridge_players" title="Category:American contract bridge players">United States</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other lists</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_contract_bridge_people#People_with_Wikipedia_articles" title="List of contract bridge people">List of bridge people with Wikipedia (English) articles</a></li> <li><a href="/wiki/Category:Contract_bridge_administrators" title="Category:Contract bridge administrators">List of bridge administrators</a></li> <li><a href="/wiki/Category:Contract_bridge_writers" title="Category:Contract bridge writers">List of bridge writers</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Teams</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/Blue_Team_(bridge)" title="Blue Team (bridge)">Blue Team</a></li> <li><a href="/wiki/Dallas_Aces" title="Dallas Aces">Dallas Aces</a></li> <li><a href="/wiki/Four_Aces_(bridge)" title="Four Aces (bridge)">Four Aces</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Clubs</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/Bridge_Base_Online" title="Bridge Base Online">Bridge Base Online</a></li> <li><a href="/wiki/Cavendish_Club" title="Cavendish Club">Cavendish Club</a></li> <li><a href="/wiki/Crockford%27s_(club)" title="Crockford's (club)">Crockford's</a></li> <li><a href="/wiki/Galatasaray_Bridge_Team" title="Galatasaray Bridge Team">Galatasaray Bridge Team</a></li> <li><a href="/wiki/Melville_Bridge_Club" title="Melville Bridge Club">Melville Bridge Club</a></li> <li><a href="/wiki/Portland_Club_(London)" title="Portland Club (London)">Portland Club (London)</a></li> <li><a href="/wiki/Savoy_Club" title="Savoy Club">Savoy Club</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Governing bodies</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/American_Bridge_Association" title="American Bridge Association">American Bridge Association</a></li> <li><a href="/wiki/American_Contract_Bridge_League" title="American Contract Bridge League">American Contract Bridge League</a></li> <li><a href="/wiki/Austrian_Bridge_Federation" title="Austrian Bridge Federation">Austrian Bridge Federation</a></li> <li><a href="/wiki/Brazilian_Bridge_Federation" title="Brazilian Bridge Federation">Brazilian Bridge Federation</a></li> <li><a href="/wiki/Bridge_Federation_of_India" title="Bridge Federation of India">Bridge Federation of India</a></li> <li><a href="/wiki/British_Bridge_League" title="British Bridge League">British Bridge League</a></li> <li><a href="/wiki/Canadian_Bridge_Federation" title="Canadian Bridge Federation">Canadian Bridge Federation</a></li> <li><a href="/wiki/Dutch_Bridge_Federation" title="Dutch Bridge Federation">Dutch Bridge Federation</a></li> <li><a href="/wiki/English_Bridge_Union" title="English Bridge Union">English Bridge Union</a></li> <li><a href="/wiki/European_Bridge_League" title="European Bridge League">European Bridge League</a></li> <li><a href="/wiki/Hungarian_Bridge_Federation" title="Hungarian Bridge Federation">Hungarian Bridge Federation</a></li> <li><a href="/wiki/International_Mind_Sports_Association" title="International Mind Sports Association">International Mind Sports Association</a></li> <li><a href="/wiki/List_of_contract_bridge_governing_bodies" title="List of contract bridge governing bodies">List of contract bridge governing bodies</a></li> <li><a href="/wiki/Norwegian_Bridge_Federation" title="Norwegian Bridge Federation">Norwegian Bridge Federation</a></li> <li><a href="/wiki/South_African_Bridge_Federation" title="South African Bridge Federation">South African Bridge Federation</a></li> <li><a href="/wiki/United_States_Bridge_Federation" title="United States Bridge Federation">United States Bridge Federation</a></li> <li><a href="/wiki/World_Bridge_Federation" title="World Bridge Federation">World Bridge Federation</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Championships" style="font-size:114%;margin:0 4em">Championships</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;background:transparent; text-align:left;"><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%">General</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_bridge_competitions_and_awards" title="List of bridge competitions and awards">List of bridge competitions and awards</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">World</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/Bermuda_Bowl" title="Bermuda Bowl">Bermuda Bowl</a></li> <li><a href="/wiki/Bridge_at_the_2008_World_Mind_Sports_Games" class="mw-redirect" title="Bridge at the 2008 World Mind Sports Games">Bridge at the 2008 World Mind Sports Games</a></li> <li><a href="/wiki/Bridge_at_the_2012_World_Mind_Sports_Games" class="mw-redirect" title="Bridge at the 2012 World Mind Sports Games">Bridge at the 2012 World Mind Sports Games</a></li> <li><a href="/wiki/Cavendish_Invitational" title="Cavendish Invitational">Cavendish Invitational</a></li> <li><a href="/wiki/Computer_Olympiad#Bridge" title="Computer Olympiad">Computer Olympiad</a></li> <li><a href="/wiki/McConnell_Cup" title="McConnell Cup">McConnell Cup</a></li> <li><a href="/wiki/Rosenblum_Cup" title="Rosenblum Cup">Rosenblum Cup</a></li> <li><a href="/wiki/Senior_Bowl_(bridge)" title="Senior Bowl (bridge)">Senior Bowl (bridge)</a></li> <li><a href="/wiki/Triple_crown_of_bridge" title="Triple crown of bridge">Triple crown of bridge</a></li> <li><a href="/wiki/Venice_Cup" title="Venice Cup">Venice Cup</a></li> <li><a href="/wiki/WBF_Youth_Award" title="WBF Youth Award">WBF Youth Award</a></li> <li><a href="/wiki/World_Bridge_Championships" title="World Bridge Championships">World Bridge Championships</a></li> <li><a href="/wiki/World_IMP_Pairs_Championship" title="World IMP Pairs Championship">World IMP Pairs Championship</a></li> <li><a href="/wiki/World_Junior_Pairs_Championship" title="World Junior Pairs Championship">World Junior Pairs Championship</a></li> <li><a href="/wiki/World_Junior_Teams_Championship" title="World Junior Teams Championship">World Junior Teams Championship</a></li> <li><a href="/wiki/World_Mind_Sports_Games" title="World Mind Sports Games">World Mind Sports Games</a></li> <li><a href="/wiki/World_Mixed_Pairs_Championship" title="World Mixed Pairs Championship">World Mixed Pairs Championship</a></li> <li><a href="/wiki/World_Mixed_Teams_Championship" title="World Mixed Teams Championship">World Mixed Teams Championship</a></li> <li><a href="/wiki/World_Open_Pairs_Championship" title="World Open Pairs Championship">World Open Pairs Championship</a></li> <li><a href="/wiki/World_Senior_Pairs_Championship" title="World Senior Pairs Championship">World Senior Pairs Championship</a></li> <li><a href="/wiki/World_Senior_Teams_Championship" title="World Senior Teams Championship">World Senior Teams Championship</a></li> <li><a href="/wiki/World_Team_Olympiad" title="World Team Olympiad">World Team Olympiad</a></li> <li><a href="/wiki/World_Transnational_Open_Teams_Championship" title="World Transnational Open Teams Championship">World Transnational Open Teams Championship</a></li> <li><a href="/wiki/World_Women_Pairs_Championship" title="World Women Pairs Championship">World Women Pairs Championship</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">National and Zonal</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/Buffett_Cup" title="Buffett Cup">Buffett Cup</a></li> <li><a href="/wiki/Camrose_Trophy" title="Camrose Trophy">Camrose Trophy</a></li> <li><a href="/wiki/Commonwealth_Nations_Bridge_Championships" title="Commonwealth Nations Bridge Championships">Commonwealth Nations Bridge Championships</a></li> <li><a href="/wiki/European_Universities_Bridge_Championships" title="European Universities Bridge Championships">European Universities Bridge Championships</a></li> <li><a href="/wiki/Gold_Cup_(bridge)" title="Gold Cup (bridge)">Gold Cup (bridge)</a></li> <li><b><span class="tmp-color" style="color:blue"><span class="smallcaps">North American bridge Championships:</span></span></b></li> <li><a href="/wiki/ACBL_King_or_Queen_of_Bridge" title="ACBL King or Queen of Bridge">ACBL King or Queen of Bridge</a></li> <li><a href="/wiki/Edgar_Kaplan_Blue_Ribbon_Pairs" title="Edgar Kaplan Blue Ribbon Pairs">Edgar Kaplan Blue Ribbon Pairs</a></li> <li><a href="/wiki/Bruce_LM%E2%80%935000_Pairs" title="Bruce LM–5000 Pairs">Bruce LM–5000 Pairs</a></li> <li><a href="/wiki/Chicago_Mixed_Board-a-Match" title="Chicago Mixed Board-a-Match">Chicago Mixed Board-a-Match</a></li> <li><a href="/wiki/Fall_National_Open_Pairs" title="Fall National Open Pairs">Fall National Open Pairs</a></li> <li><a href="/wiki/Fast_Open_Pairs" title="Fast Open Pairs">Fast Open Pairs</a></li> <li><a href="/wiki/Fishbein_Trophy" title="Fishbein Trophy">Fishbein Trophy</a></li> <li><a href="/wiki/Goren_Trophy" title="Goren Trophy">Goren Trophy</a></li> <li><a href="/wiki/Grand_National_Teams" title="Grand National Teams">Grand National Teams</a></li> <li><a href="/wiki/Hilliard_Mixed_Pairs" title="Hilliard Mixed Pairs">Hilliard Mixed Pairs</a></li> <li><a href="/wiki/Jacoby_Open_Swiss_Teams" title="Jacoby Open Swiss Teams">Jacoby Open Swiss Teams</a></li> <li><a href="/wiki/Keohane_North_American_Swiss_Teams" title="Keohane North American Swiss Teams">Keohane North American Swiss Teams</a></li> <li><a href="/wiki/Lebhar_IMP_Pairs" title="Lebhar IMP Pairs">Lebhar IMP Pairs</a></li> <li><a href="/wiki/Leventritt_Silver_Ribbon_Pairs" title="Leventritt Silver Ribbon Pairs">Leventritt Silver Ribbon Pairs</a></li> <li><a href="/wiki/Machlin_Women%27s_Swiss_Teams" title="Machlin Women's Swiss Teams">Machlin Women's Swiss Teams</a></li> <li><a href="/wiki/Manfield_Non-Life_Master_Pairs" title="Manfield Non-Life Master Pairs">Manfield Non-Life Master Pairs</a></li> <li><a href="/wiki/Marcus_Cup" title="Marcus Cup">Marcus Cup</a></li> <li><a href="/wiki/Master_Individual" title="Master Individual">Master Individual</a></li> <li><a href="/wiki/Mini-Blue_Ribbon_Pairs" title="Mini-Blue Ribbon Pairs">Mini-Blue Ribbon Pairs</a></li> <li><a href="/wiki/Mini-Spingold" title="Mini-Spingold">Mini-Spingold</a></li> <li><a href="/wiki/Mitchell_Board-a-Match_Teams" title="Mitchell Board-a-Match Teams">Mitchell Board-a-Match Teams</a></li> <li><a href="/wiki/Mott-Smith_Trophy" title="Mott-Smith Trophy">Mott-Smith Trophy</a></li> <li><a href="/wiki/Nail_Life_Master_Open_Pairs" title="Nail Life Master Open Pairs">Nail Life Master Open Pairs</a></li> <li><a href="/wiki/National_199er_Pairs" title="National 199er Pairs">National 199er Pairs</a></li> <li><a href="/wiki/National_49er_Pairs" title="National 49er Pairs">National 49er Pairs</a></li> <li><a href="/wiki/National_99er_Pairs" title="National 99er Pairs">National 99er Pairs</a></li> <li><a href="/wiki/Non-Life_Master_Swiss_Teams" title="Non-Life Master Swiss Teams">Non-Life Master Swiss Teams</a></li> <li><a href="/wiki/Norman_Kay_Platinum_Pairs" title="Norman Kay Platinum Pairs">Norman Kay Platinum Pairs</a></li> <li><a href="/wiki/North_American_Bridge_Championships" title="North American Bridge Championships">North American Bridge Championships</a></li> <li><a href="/wiki/North_American_Pairs" title="North American Pairs">North American Pairs</a></li> <li><a href="/wiki/Red_Ribbon_Pairs" title="Red Ribbon Pairs">Red Ribbon Pairs</a></li> <li><a href="/wiki/Reisinger" title="Reisinger">Reisinger</a></li> <li><a href="/wiki/Rockwell_Mixed_Pairs" title="Rockwell Mixed Pairs">Rockwell Mixed Pairs</a></li> <li><a href="/wiki/Roth_Open_Swiss_Teams" title="Roth Open Swiss Teams">Roth Open Swiss Teams</a></li> <li><a href="/wiki/Senior_Knockout_Teams" title="Senior Knockout Teams">Senior Knockout Teams</a></li> <li><a href="/wiki/Silodor_Open_Pairs" title="Silodor Open Pairs">Silodor Open Pairs</a></li> <li><a href="/wiki/Smith_Life_Master_Women%27s_Pairs" title="Smith Life Master Women's Pairs">Smith Life Master Women's Pairs</a></li> <li><a href="/wiki/Spingold" title="Spingold">Spingold</a></li> <li><a href="/wiki/Sternberg_Women%27s_Board-a-Match_Teams" title="Sternberg Women's Board-a-Match Teams">Sternberg Women's Board-a-Match Teams</a></li> <li><a href="/wiki/Truscott_Senior_Swiss_Teams" title="Truscott Senior Swiss Teams">Truscott Senior Swiss Teams</a></li> <li><a href="/wiki/United_States_Bridge_Championships_-_Open" title="United States Bridge Championships - Open">United States Bridge Championships - Open</a></li> <li><a href="/wiki/Vanderbilt_Trophy" title="Vanderbilt Trophy">Vanderbilt Trophy</a></li> <li><a href="/wiki/Von_Zedtwitz_Life_Master_Pairs" title="Von Zedtwitz Life Master Pairs">Von Zedtwitz Life Master Pairs</a></li> <li><a href="/wiki/Wagar_Women%27s_Knockout_Teams" title="Wagar Women's Knockout Teams">Wagar Women's Knockout Teams</a></li> <li><a href="/wiki/Wernher_Open_Pairs" title="Wernher Open Pairs">Wernher Open Pairs</a></li> <li><a href="/wiki/Whitehead_Women%27s_Pairs" title="Whitehead Women's Pairs">Whitehead Women's Pairs</a></li> <li><a href="/wiki/Young_LM%E2%80%931500_Pairs" title="Young LM–1500 Pairs">Young LM–1500 Pairs</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Publications_and_resources" style="font-size:114%;margin:0 4em">Publications and resources</div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0;background:transparent; text-align:left;"><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%">Books</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_contract_bridge_books" title="List of contract bridge books">List of contract bridge books</a></li> <li><a href="/wiki/Master_Point_Press" title="Master Point Press">Master Point Press</a></li> <li><b><span class="tmp-color" style="color:blue"><span class="smallcaps">Bibliographies:</span></span></b> <a href="/wiki/Edwin_Kantar_bibliography" title="Edwin Kantar bibliography">Edwin Kantar bibliography</a></li> <li><a href="/wiki/Hugh_Kelsey#Publications" title="Hugh Kelsey">Hugh Kelsey bibliography</a></li> <li><a href="/wiki/Terence_Reese_bibliography" title="Terence Reese bibliography">Terence Reese bibliography</a></li> <li><b><span class="tmp-color" style="color:blue"><span class="smallcaps">Books:</span></span></b> <i><a href="/wiki/25_Bridge_Conventions_You_Should_Know" title="25 Bridge Conventions You Should Know">25 Bridge Conventions You Should Know</a></i></li> <li><i><a href="/wiki/Bridge_Squeezes_Complete" title="Bridge Squeezes Complete">Bridge Squeezes Complete</a></i></li> <li><i><a href="/wiki/The_Cardturner" title="The Cardturner">The Cardturner</a></i></li> <li><i><a href="/wiki/Contract_Bridge_for_Beginners" title="Contract Bridge for Beginners">Contract Bridge for Beginners</a></i></li> <li><i><a href="/wiki/Design_for_Bidding" title="Design for Bidding">Design for Bidding</a></i></li> <li><i><a href="/wiki/The_Official_Encyclopedia_of_Bridge" title="The Official Encyclopedia of Bridge">The Official Encyclopedia of Bridge</a></i></li> <li><i><a href="/wiki/Planning_the_Play_of_a_Bridge_Hand" title="Planning the Play of a Bridge Hand">Planning the Play of a Bridge Hand</a></i></li> <li><i><a href="/wiki/Right_Through_the_Pack" title="Right Through the Pack">Right Through the Pack</a></i></li> <li><i><a href="/wiki/Tickets_to_the_Devil" title="Tickets to the Devil">Tickets to the Devil</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Magazines</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/List_of_contract_bridge_magazines" title="List of contract bridge magazines">List of contract bridge magazines</a></li> <li><b><span class="tmp-color" style="color:blue"><span class="smallcaps">Magazines:</span></span></b> <i><a href="/wiki/Bridge_d%27Italia" title="Bridge d'Italia">Bridge d'Italia</a></i></li> <li><i><a href="/wiki/Bridge_Magazine" title="Bridge Magazine">Bridge Magazine</a></i></li> <li><i><a href="/wiki/The_Bridge_World" title="The Bridge World">The Bridge World</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">TV and Radio</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/Grand_Slam_(BBC_TV)" title="Grand Slam (BBC TV)">Grand Slam (BBC TV)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">External links</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/Bridge_Base_Basic" title="Bridge Base Basic">Bridge Base Basic</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=Bidding_system&oldid=1170973220">https://en.wikipedia.org/w/index.php?title=Bidding_system&oldid=1170973220</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Category</a>: 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