CINXE.COM
BBC Radio 4 - Radio 4 in Four - Pick up a puzzle: 7 scintillating brainteasers to have as a hobby
<!DOCTYPE html> <html class="" lang="en-GB"> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article","20180213134618","https://web.archive.org/","web","/_static/", "1518529578"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" /> <!-- End Wayback Rewrite JS Include --> <!-- Barlesque 3.21.31 --> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/> <meta name="description" content=" Looking for a new hobby? Try wrapping your head around these mind-bending brainteasers. "/> <meta name="keywords" content=""/> <title> BBC Radio 4 - Radio 4 in Four - Pick up a puzzle: 7 scintillating brainteasers to have as a hobby</title> <meta name="viewport" content="width=device-width, initial-scale=1.0"/> <meta property="fb:admins" content="100004154058350"/> <!--[if (gt IE 8) | (IEMobile)]><!--> <link rel="stylesheet" href="https://web.archive.org/web/20180213134618cs_/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/style/orb.min.css"> <!--<![endif]--> <!--[if (lt IE 9) & (!IEMobile)]> <link rel="stylesheet" href="http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/style/orb-ie.min.css"> <![endif]--> <!--orb.ws.require.lib--> <script class="js-require-lib" src="https://web.archive.org/web/20180213134618js_/http://static.bbci.co.uk/frameworks/requirejs/lib.js"></script> <script type="text/javascript"> bbcRequireMap = {"jquery-1":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.7.2", "jquery-1.4":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.4", "jquery-1.9":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.9.1", "jquery-1.12":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-1.12.0.min", "jquery-2.2":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/jquery/0.4.1/sharedmodules/jquery-2.2.0.min", "istats-1":"//web.archive.org/web/20180213134618/http://nav.files.bbci.co.uk/nav-analytics/0.1.0-43/js/istats-1", "swfobject-2":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/swfobject/0.1.10/sharedmodules/swfobject-2", "demi-1":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/demi/0.10.1/sharedmodules/demi-1", "gelui-1":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/gelui/0.9.13/sharedmodules/gelui-1", "cssp!gelui-1/overlay":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/gelui/0.9.13/sharedmodules/gelui-1/overlay.css", "relay-1":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/relay/0.2.6/sharedmodules/relay-1", "clock-1":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/clock/0.1.9/sharedmodules/clock-1", "canvas-clock-1":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/clock/0.1.9/sharedmodules/canvas-clock-1", "cssp!clock-1":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/clock/0.1.9/sharedmodules/clock-1.css", "jssignals-1":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/jssignals/0.3.6/modules/jssignals-1", "jcarousel-1":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/jcarousel/0.1.10/modules/jcarousel-1", "bump-3":"//web.archive.org/web/20180213134618/http://emp.bbci.co.uk/emp/bump-3/bump-3", "Amen/Core/Vendor/EQ":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/Amen/Core/Vendor/EQ", "Amen/Core/Vendor/Picturefill":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/Amen/Core/Vendor/Picturefill", "Amen/Core/bootstrap":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/Amen/Core/bootstrap", "Amen/Template/Stream/stream":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/Amen/Template/Stream/stream", "ab":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/ab", "bootstrap":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/bootstrap", "bypass-player-guidance":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/bypass-player-guidance", "carousel":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/carousel", "category-today":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/category-today", "contactform":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/contactform", "episode-guide":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/episode-guide", "gallery":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/gallery", "images":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/images", "infinite-scroll":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/infinite-scroll", "ipr-prototype":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/ipr-prototype", "lazyLink":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/lazyLink", "lazyload":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/lazyload", "plugins/jquery.appear":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/plugins/jquery.appear", "plugins/responsive-carousel":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/plugins/responsive-carousel", "popup":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/popup", "rmpcomscore/base":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/rmpcomscore/base", "rmpcomscore/comscorews":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/rmpcomscore/comscorews", "rv-bootstrap":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/rv-bootstrap", "smp/init":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/smp/init", "smp/multi":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/smp/multi", "smp/persistence":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/smp/persistence", "smp/recbump":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/smp/recbump", "smp/resume":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/smp/resume", "smp/uas":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/smp/uas", "snippets":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/snippets", "statstracking":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/statstracking", "sticky":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/sticky", "stream":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/stream", "third-party":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/third-party", "timezone-notification":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/timezone-notification", "utils":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/utils", "utils/cookie":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/utils/cookie", "vendor/fixed-fixed":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/vendor/fixed-fixed", "vendor/fixed-sticky":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/programmes/2.277.0.173/modules/vendor/fixed-sticky", "uasclient":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/uasclient/0.1.42/modules/uasclient"}; require({ baseUrl: 'https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/', paths: bbcRequireMap, waitSeconds: 30 }); </script> <script type="text/javascript">/*<![CDATA[*/ if (typeof bbccookies_flag === 'undefined') { bbccookies_flag = 'ON'; } showCTA_flag = true; cta_enabled = (showCTA_flag && (bbccookies_flag === 'ON')); (function(){var m="ckns_policy",q="Thu, 01 Jan 1970 00:00:00 GMT",i={ads:true,personalisation:true,performance:true,necessary:true};function c(u){if(c.cache[u]){return c.cache[u]}var t=u.split("/"),v=[""];do{v.unshift((t.join("/")||"/"));t.pop()}while(v[0]!=="/");c.cache[u]=v;return v}c.cache={};function a(u){if(a.cache[u]){return a.cache[u]}var v=u.split("."),t=[];while(v.length&&"|co.uk|com|".indexOf("|"+v.join(".")+"|")===-1){if(v.length){t.push(v.join("."))}v.shift()}c.cache[u]=t;return t}a.cache={};function s(t,y,u){var E=[""].concat(a(window.location.hostname)),B=c(window.location.pathname),D="",w,C;for(var x=0,A=E.length;x<A;x++){w=E[x];for(var v=0,z=B.length;v<z;v++){C=B[v];D=t+"="+y+";"+(w?"domain="+w+";":"")+(C?"path="+C+";":"")+(u?"expires="+u+";":"");bbccookies.set(D,true)}}}window.bbccookies={POLICY_REFRESH_DATE_MILLIS:new Date(2015,4,21,0,0,0,0).getTime(),POLICY_EXPIRY_COOKIENAME:"ckns_policy_exp",_setEverywhere:s,cookiesEnabled:function(){var t="ckns_testcookie"+Math.floor(Math.random()*100000);this.set(t+"=1");if(this.get().indexOf(t)>-1){e(t);return true}return false},get:function(){return document.cookie},getCrumb:function(t){if(!t){return null}return decodeURIComponent(document.cookie.replace(new RegExp("(?:(?:^|.*;)\\s*"+encodeURIComponent(t).replace(/[\-\.\+\*]/g,"\\$&")+"\\s*\\=\\s*([^;]*).*$)|^.*$"),"$1"))||null},policyRequiresRefresh:function(){var u=new Date();u.setHours(0);u.setMinutes(0);u.setSeconds(0);u.setMilliseconds(0);if(bbccookies.POLICY_REFRESH_DATE_MILLIS<=u.getTime()){var t=bbccookies.getCrumb(bbccookies.POLICY_EXPIRY_COOKIENAME);if(t){t=new Date(parseInt(t));t.setYear(t.getFullYear()-1);return bbccookies.POLICY_REFRESH_DATE_MILLIS>=t.getTime()}else{return true}}else{return false}},_setPolicy:function(t){return f.apply(this,arguments)},readPolicy:function(){return l.apply(this,arguments)},_deletePolicy:function(){s(m,"",q)},_isConfirmed:function(){return n()!==null},_acceptsAll:function(){var t=l();return t&&!(j(t).indexOf("0")>-1)},_getCookieName:function(){return b.apply(this,arguments)},_showPrompt:function(){var t=((!this._isConfirmed()||this.policyRequiresRefresh())&&window.cta_enabled&&this.cookiesEnabled()&&!window.bbccookies_disable);return(window.orb&&window.orb.fig)?t&&(window.orb.fig("no")||window.orb.fig("ck")):t},_getPolicy:this.readPolicy};function b(u){var t=(""+u).match(/^([^=]+)(?==)/);return(t&&t.length?t[0]:"")}function j(t){return""+(t.ads?1:0)+(t.personalisation?1:0)+(t.performance?1:0)}function f(x){if(typeof x==="undefined"){x=i}if(typeof arguments[0]==="string"){var u=arguments[0],w=arguments[1];if(u==="necessary"){w=true}x=l();x[u]=w}else{if(typeof arguments[0]==="object"){x.necessary=true}}var v=new Date();v.setYear(v.getFullYear()+1);bbccookies.set(m+"="+j(x)+";domain=bbc.co.uk;path=/;expires="+v.toUTCString()+";");bbccookies.set(m+"="+j(x)+";domain=bbc.com;path=/;expires="+v.toUTCString()+";");bbccookies.set(m+"="+j(x)+";domain=bbci.co.uk;path=/;expires="+v.toUTCString()+";");var t=new Date(v.getTime());t.setMonth(t.getMonth()+1);bbccookies.set(bbccookies.POLICY_EXPIRY_COOKIENAME+"="+v.getTime()+";domain=bbc.co.uk;path=/;expires="+t.toUTCString()+";");bbccookies.set(bbccookies.POLICY_EXPIRY_COOKIENAME+"="+v.getTime()+";domain=bbc.com;path=/;expires="+t.toUTCString()+";");bbccookies.set(bbccookies.POLICY_EXPIRY_COOKIENAME+"="+v.getTime()+";domain=bbci.co.uk;path=/;expires="+t.toUTCString()+";");return x}function o(t){if(t===null){return null}var u=t.split("");return{ads:!!+u[0],personalisation:!!+u[1],performance:!!+u[2],necessary:true}}function n(){var t=new RegExp("(?:^|; ?)"+m+"=(\\d\\d\\d)($|;)"),u=document.cookie.match(t);if(!u){return null}return u[1]}function l(t){var u=o(n());if(!u){u=i}if(t){return u[t]}else{return u}}function e(t){return document.cookie=t+"=;expires="+q+";"}var g=!(window.bbccookies_flag==="ON"&&!bbccookies._acceptsAll()&&!window.bbccookies_disable);var k={},d={"personalisation":"ckps_.+|X-AB-iplayer-.+|ACTVTYMKR|BBC_EXAMPLE_COOKIE|BBCIplayer|BBCiPlayerM|BBCIplayerSession|BBCMediaselector|BBCPostcoder|bbctravel|CGISESSID|ed|food-view|forceDesktop|h4|IMRID|locserv|MyLang|myloc|NTABS|ttduserPrefs|V5|WEATHER|BBCScienceDiscoveryPlaylist_.+|bitratePref|correctAnswerCount|genreCookie|highestQuestionScore|incorrectAnswerCount|longestStreak|MSCSProfile|programmes-oap-expanded|quickestAnswer|score|servicePanel|slowestAnswer|totalTimeForAllFormatted|v|BBCwords|score|correctAnswerCount|highestQuestionScore|hploc|BGUID|BBCWEACITY|mstouch|myway|BBCNewsCustomisation|cbbc_anim|cbeebies_snd|bbcsr_usersx|cbeebies_rd|BBC-Latest_Blogs|zh-enc|pref_loc|m|bbcEmp.+|recs-.+|_lvd2|_lvs2|tick|_fcap_CAM1|_rcc2","performance":"ckpf_.+|optimizely.*|BBCLiveStatsClick|id|_em_.+|cookies_enabled|mbox|mbox-admin|mc_.+|omniture_unique|s_.+|sc_.+|adpolicyAdDisplayFrequency|s1|ns_session|ns_cookietest|ns_ux|NO-SA|tr_pr1|gvsurvey|bbcsurvey|si_v|sa_labels|obuid|mm_.+|mmid|mmcore.+|mmpa.+","ads":"ckad_.+|rsi_segs|c","necessary":"ckns_.+|BBC-UID|blq\\.dPref|SSO2-UID|BBC-H2-User|rmRpDetectReal|bbcComSurvey|IDENTITY_ENV|IDENTITY|IDENTITY-HTTPS|IDENTITY_SESSION|BBCCOMMENTSMODULESESSID|bbcBump.+|IVOTE_VOTE_HISTORY|pulse|BBCPG|BBCPGstat|ecos\\.dt"};function r(){var x=document.cookie.replace(/; +/g,";").split(";"),u,v=[];for(var w=0,t=x.length;w<t;w++){u=x[w];v.push(bbccookies._getCookieName(u))}return v}function h(w){var v=JSON.stringify(w);if(typeof(k[v])!=="undefined"){return k[v]}var u="";for(var t in w){if(w.hasOwnProperty(t)&&d[t]){if(w[t]===true){u+=(u?"|":"")+d[t]}}}k[v]=new RegExp("^("+(u?u:".*")+")$","i");return k[v]}bbccookies.getPolicyExpiryDateTime=function(){return bbccookies.POLICY_EXPIRY_COOKIENAME};bbccookies.purge=function(){var u=bbccookies.readPolicy(),w=r(),x;for(var v=0,t=w.length;v<t;v++){if(!bbccookies.isAllowed(w[v],u)){x=new Date();x.setTime(0);x=x.toUTCString();s(w[v],"deleted",x)}}};function p(){if(g){return}bbccookies.purge();contentLoaded(window,bbccookies.purge);if(window.addEventListener){window.addEventListener("beforeunload",bbccookies.purge,false)}else{if(window.attachEvent){window.attachEvent("onbeforeunload",bbccookies.purge)}else{window.onbeforeunload=bbccookies.purge}}}bbccookies.set=function(u,t){if(g){return document.cookie=u}var v=bbccookies._getCookieName(u);if(t||bbccookies.isAllowed(v)){return document.cookie=u}return null};bbccookies.isAllowed=function(v){var u=bbccookies.readPolicy();var t=h(u);return t.test(v)};p()})(); /*! * contentloaded.js * * Author: Diego Perini (diego.perini at gmail.com) * Summary: cross-browser wrapper for DOMContentLoaded * Updated: 20101020 * License: MIT * Version: 1.2 * * URL: * http://javascript.nwbox.com/ContentLoaded/ * http://javascript.nwbox.com/ContentLoaded/MIT-LICENSE * */ function contentLoaded(d,i){var c=false,h=true,k=d.document,j=k.documentElement,a=k.addEventListener,n=a?"addEventListener":"attachEvent",l=a?"removeEventListener":"detachEvent",b=a?"":"on",m=function(o){if(o.type==="readystatechange"&&k.readyState!="complete"){return}(o.type==="load"?d:k)[l](b+o.type,m,false);if(!c&&(c=true)){i.call(d,o.type||o)}},g=function(){try{j.doScroll("left")}catch(o){setTimeout(g,50);return}m("poll")};if(k.readyState==="complete"){i.call(d,"lazy")}else{if(!a&&j.doScroll){try{h=!d.frameElement}catch(f){}if(h){g()}}k[n](b+"DOMContentLoaded",m,false);k[n](b+"readystatechange",m,false);d[n](b+"load",m,false)}}if(typeof(require)==="function"&&!require.defined("orb/cookies")){define("orb/cookies",function(){return window.bbccookies})}; /*]]>*/</script> <script type="text/javascript"> define('orb/cookies', function() { return window.bbccookies; }); </script> <script type="text/javascript">/*<![CDATA[*/ (function(){window.orb={};window.orb.figState={ad:0,ap:0,ck:1,eu:1,mb:0,tb:0,uk:1,df:1};window.orb.fig=function(a){return(arguments.length)?window.orb.figState[a]:window.orb.figState};window.orb.fig.device={};window.orb.fig.geo={};window.orb.fig.user={};window.orb.fig.isDefault=function(){return window.orb.fig("df")};window.orb.fig.device.isTablet=function(){return window.orb.fig("tb")};window.orb.fig.device.isMobile=function(){return window.orb.fig("mb")};window.orb.fig.geo.isUK=function(){return window.orb.fig("uk")};window.orb.fig.geo.isEU=function(){return window.orb.fig("eu")};window.fig=window.fig||{};window.fig.manager={include:function(e){e=e||window;var g=false;var j=e.document,k=j.cookie,i=k.match(/(?:^|; ?)ckns_orb_fig=([^;]+)/),h;if(i){i=this.deserialise(decodeURIComponent(RegExp.$1));this.setFig(e,i)}if(window.fig.async&&typeof JSON!="undefined"){var b=(document.cookie.match("(^|; )ckns_orb_cachedfig=([^;]*)")||0)[2];h=b?JSON.parse(b):null;if(h){this.setFig(e,h);g=true}}var a="https://web.archive.org/web/20180213134618/https://fig.bbc.co.uk/frameworks/fig/1/fig.js";if(g){j.write('<script src="'+a+'" async><'+"/script>")}else{j.write('<script src="'+a+'"><'+"/script>")}},confirm:function(a){return true},setFig:function(a,b){(function(){a.orb=a.orb||{};a.orb.figState=b})()},deserialise:function(b){var a={};b.replace(/([a-z]{2}):([0-9]+)/g,function(){a[RegExp.$1]=+RegExp.$2});return a}}})();fig.manager.include();/*]]>*/</script> <!-- Nav Analytics : 89 --> <script type="text/javascript">window.bbcFlagpoles_istats="ON",require.config({paths:{"istats-1":"//web.archive.org/web/20180213134618/http://nav.files.bbci.co.uk/nav-analytics/0.1.0-89/js/istats-1","megavolt-client":"//web.archive.org/web/20180213134618/http://nav.files.bbci.co.uk/nav-analytics/0.1.0-89/js/megavolt-client"},config:{"megavolt-client":{baseUrl:"https://web.archive.org/web/20180213134618/https://mvt.api.bbc.com"}}}),require(["istats-1","orb/cookies"],function(e,t){if(t.isAllowed("s1")){e.addCollector({name:"default",url:"https://web.archive.org/web/20180213134618/https://sa.bbc.co.uk/bbc/bbc/s",separator:"&"});var a="programmes.radio_4_in_four.brand.p025ht2f.articles.jrvwx2hzq1m948wvjvjrfr.pick_up_a_puzzle_7_scintillating_brainteasers_to_have_as_a_hobby.page";e.setCountername(a),window.istats_countername&&e.setCountername(window.istats_countername),e.addLabels("ml_name=webmodule&ml_version=89")}});</script> <script type="text/javascript">/*<![CDATA[*/ window.bbcFlagpoles_istats = 'ON'; window.orb = window.orb || {}; if (typeof bbccookies !== 'undefined' && bbccookies.isAllowed('s1')) { var istatsTrackingUrl = '//web.archive.org/web/20180213134618/http://sa.bbc.co.uk/bbc/bbc/s?name=programmes.radio_4_in_four.brand.p025ht2f.articles.jrvwx2hzq1m948wvjvjrfr.pick_up_a_puzzle_7_scintillating_brainteasers_to_have_as_a_hobby.page&app_name=programmes&prod_name=programmes&app_version=2.277.0.173&brand_id=p025ht2f&programme_title=Radio+4+in+Four&brand_title=Radio+4+in+Four&pips_genre_group_ids=C00193%2C+C00017%2C+C00200%2C+C00045%2C+C00079%2C+C00080&rec_app_id=programmes&rec_v=2&rec_p=null_null_2&event_master_brand=bbc_radio_four&progs_page_type=article_show&bbc_site=iplayerradio-radio4&progs_content_block_0=progs_ancillary_image&progs_content_block_1=progs_ancillary_prose&progs_content_block_2=progs_ancillary_prose&progs_content_block_3=progs_ancillary_prose&progs_content_block_4=progs_ancillary_prose&progs_content_block_5=progs_ancillary_prose&progs_content_block_6=progs_ancillary_prose&progs_content_block_7=progs_ancillary_prose&progs_content_block_8=progs_ancillary_promotions&pal_route=programmes_article&app_type=responsive&language=en-GB&pal_webapp=programmes'; require(['istats-1'], function (istats) { var counterName = (window.istats_countername) ? window.istats_countername : istatsTrackingUrl.match(/[\?&]name=([^&]*)/i)[1]; istats.setCountername(counterName); istats.addLabels('app_name=programmes&prod_name=programmes&app_version=2.277.0.173&brand_id=p025ht2f&programme_title=Radio+4+in+Four&brand_title=Radio+4+in+Four&pips_genre_group_ids=C00193%2C+C00017%2C+C00200%2C+C00045%2C+C00079%2C+C00080&rec_app_id=programmes&rec_v=2&rec_p=null_null_2&event_master_brand=bbc_radio_four&progs_page_type=article_show&bbc_site=iplayerradio-radio4&progs_content_block_0=progs_ancillary_image&progs_content_block_1=progs_ancillary_prose&progs_content_block_2=progs_ancillary_prose&progs_content_block_3=progs_ancillary_prose&progs_content_block_4=progs_ancillary_prose&progs_content_block_5=progs_ancillary_prose&progs_content_block_6=progs_ancillary_prose&progs_content_block_7=progs_ancillary_prose&progs_content_block_8=progs_ancillary_promotions&pal_route=programmes_article&app_type=responsive&language=en-GB&pal_webapp=programmes'); var c = (document.cookie.match(/\bckns_policy=(\d\d\d)/) || []).pop() || ''; istats.addLabels({ 'blq_s': '4d', 'blq_r': '2.7', 'blq_v': 'default', 'blq_e': 'pal', 'bbc_mc': (c ? 'ad' + c.charAt(0) + 'ps' + c.charAt(1) + 'pf' + c.charAt(2) : 'not_set') } ); }); } /*]]>*/</script> <script type="text/javascript">/*<![CDATA[*/ (function(undefined){if(!window.bbc){window.bbc={}}var ROLLING_PERIOD_DAYS=30;window.bbc.Mandolin=function(id,segments,opts){var now=new Date().getTime(),storedItem,DEFAULT_START=now,DEFAULT_RATE=1,COOKIE_NAME="ckpf_mandolin";opts=opts||{};this._id=id;this._segmentSet=segments;this._store=new window.window.bbc.Mandolin.Storage(COOKIE_NAME);this._opts=opts;this._rate=(opts.rate!==undefined)?+opts.rate:DEFAULT_RATE;this._startTs=(opts.start!==undefined)?new Date(opts.start).getTime():new Date(DEFAULT_START).getTime();this._endTs=(opts.end!==undefined)?new Date(opts.end).getTime():daysFromNow(ROLLING_PERIOD_DAYS);this._signupEndTs=(opts.signupEnd!==undefined)?new Date(opts.signupEnd).getTime():this._endTs;this._segment=null;if(typeof id!=="string"){throw new Error("Invalid Argument: id must be defined and be a string")}if(Object.prototype.toString.call(segments)!=="[object Array]"){throw new Error("Invalid Argument: Segments are required.")}if(opts.rate!==undefined&&(opts.rate<0||opts.rate>1)){throw new Error("Invalid Argument: Rate must be between 0 and 1.")}if(this._startTs>this._endTs){throw new Error("Invalid Argument: end date must occur after start date.")}if(!(this._startTs<this._signupEndTs&&this._signupEndTs<=this._endTs)){throw new Error("Invalid Argument: SignupEnd must be between start and end date")}removeExpired.call(this,now);var overrides=window.bbccookies.get().match(/ckns_mandolin_setSegments=([^;]+)/);if(overrides!==null){eval("overrides = "+decodeURIComponent(RegExp.$1)+";");if(overrides[this._id]&&this._segmentSet.indexOf(overrides[this._id])==-1){throw new Error("Invalid Override: overridden segment should exist in segments array")}}if(overrides!==null&&overrides[this._id]){this._segment=overrides[this._id]}else{if((storedItem=this._store.getItem(this._id))){this._segment=storedItem.segment}else{if(this._startTs<=now&&now<this._signupEndTs&&now<=this._endTs&&this._store.isEnabled()===true){this._segment=pick(segments,this._rate);if(opts.end===undefined){this._store.setItem(this._id,{segment:this._segment})}else{this._store.setItem(this._id,{segment:this._segment,end:this._endTs})}log.call(this,"mandolin_segment")}}}log.call(this,"mandolin_view")};window.bbc.Mandolin.prototype.getSegment=function(){return this._segment};function log(actionType,params){var that=this;require(["istats-1"],function(istats){istats.log(actionType,that._id+":"+that._segment,params?params:{})})}function removeExpired(expires){var items=this._store.getItems(),expiresInt=+expires;for(var key in items){if(items[key].end!==undefined&&+items[key].end<expiresInt){this._store.removeItem(key)}}}function getLastExpirationDate(data){var winner=0,rollingExpire=daysFromNow(ROLLING_PERIOD_DAYS);for(var key in data){if(data[key].end===undefined&&rollingExpire>winner){winner=rollingExpire}else{if(+data[key].end>winner){winner=+data[key].end}}}return(winner)?new Date(winner):new Date(rollingExpire)}window.bbc.Mandolin.prototype.log=function(params){log.call(this,"mandolin_log",params)};window.bbc.Mandolin.prototype.convert=function(params){log.call(this,"mandolin_convert",params);this.convert=function(){}};function daysFromNow(n){var endDate;endDate=new Date().getTime()+(n*60*60*24)*1000;return endDate}function pick(segments,rate){var picked,min=0,max=segments.length-1;if(typeof rate==="number"&&Math.random()>rate){return null}do{picked=Math.floor(Math.random()*(max-min+1))+min}while(picked>max);return segments[picked]}window.bbc.Mandolin.Storage=function(name){validateCookieName(name);this._cookieName=name;this._isEnabled=(bbccookies.isAllowed(this._cookieName)===true&&bbccookies.cookiesEnabled()===true)};window.bbc.Mandolin.Storage.prototype.setItem=function(key,value){var storeData=this.getItems();storeData[key]=value;this.save(storeData);return value};window.bbc.Mandolin.Storage.prototype.isEnabled=function(){return this._isEnabled};window.bbc.Mandolin.Storage.prototype.getItem=function(key){var storeData=this.getItems();return storeData[key]};window.bbc.Mandolin.Storage.prototype.removeItem=function(key){var storeData=this.getItems();delete storeData[key];this.save(storeData)};window.bbc.Mandolin.Storage.prototype.getItems=function(){return deserialise(this.readCookie(this._cookieName)||"")};window.bbc.Mandolin.Storage.prototype.save=function(data){window.bbccookies.set(this._cookieName+"="+encodeURIComponent(serialise(data))+"; expires="+getLastExpirationDate(data).toUTCString()+";")};window.bbc.Mandolin.Storage.prototype.readCookie=function(name){var nameEq=name+"=",ca=window.bbccookies.get().split("; "),i,c;validateCookieName(name);for(i=0;i<ca.length;i++){c=ca[i];if(c.indexOf(nameEq)===0){return decodeURIComponent(c.substring(nameEq.length,c.length))}}return null};function serialise(o){var str="";for(var p in o){if(o.hasOwnProperty(p)){str+='"'+p+'"'+":"+(typeof o[p]==="object"?(o[p]===null?"null":"{"+serialise(o[p])+"}"):'"'+o[p].toString()+'"')+","}}return str.replace(/,\}/g,"}").replace(/,$/g,"")}function deserialise(str){var o;str="{"+str+"}";if(!validateSerialisation(str)){throw"Invalid input provided for deserialisation."}eval("o = "+str);return o}var validateSerialisation=(function(){var OBJECT_TOKEN="<Object>",ESCAPED_CHAR='"\\n\\r\\u2028\\u2029\\u000A\\u000D\\u005C',ALLOWED_CHAR="([^"+ESCAPED_CHAR+"]|\\\\["+ESCAPED_CHAR+"])",KEY='"'+ALLOWED_CHAR+'+"',VALUE='(null|"'+ALLOWED_CHAR+'*"|'+OBJECT_TOKEN+")",KEY_VALUE=KEY+":"+VALUE,KEY_VALUE_SEQUENCE="("+KEY_VALUE+",)*"+KEY_VALUE,OBJECT_LITERAL="({}|{"+KEY_VALUE_SEQUENCE+"})",objectPattern=new RegExp(OBJECT_LITERAL,"g");return function(str){if(str.indexOf(OBJECT_TOKEN)!==-1){return false}while(str.match(objectPattern)){str=str.replace(objectPattern,OBJECT_TOKEN)}return str===OBJECT_TOKEN}})();function validateCookieName(name){if(name.match(/ ,;/)){throw"Illegal name provided, must be valid in browser cookie."}}})(); /*]]>*/</script> <script type="text/javascript"> document.documentElement.className += (document.documentElement.className? ' ' : '') + 'orb-js'; fig.manager.confirm(); </script> <script src="https://web.archive.org/web/20180213134618js_/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/script/orb/api.min.js"></script> <script src="https://web.archive.org/web/20180213134618js_/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/script/orb/font.min.js"></script> <script type="text/javascript"> var blq = { environment: function() { return 'live'; } } </script> <script type="text/javascript"> /*<![CDATA[*/ function oqsSurveyManager(w, flag) { if (flag !== 'OFF' && (w.orb.fig("no") || w.orb.fig("uk"))) { w.document.write('<script type="text/javascript" src="https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/script/vendor/edr.min.js"><'+'/script>'); } } oqsSurveyManager(window, 'ON'); /*]]>*/ </script> <link rel="stylesheet" href="https://web.archive.org/web/20180213134618cs_/http://static.bbci.co.uk/gelstyles/0.13.0.14/style/core.css"/> <!--[if (lte IE 7)&(!IEMobile)]> <link rel="stylesheet" href="http://static.bbci.co.uk/gelstyles/0.13.0.14/style/core-ie7.css" /> <![endif]--> <!-- BBCDOTCOM template: responsive webservice --> <!-- BBCDOTCOM head --><script type="text/javascript"> /*<![CDATA[*/ var _sf_startpt = (new Date()).getTime(); /*]]>*/ </script><style type="text/css">.bbccom_display_none{display:none;}</style><script type="text/javascript"> /*<![CDATA[*/ var bbcdotcomConfig, googletag = googletag || {}; googletag.cmd = googletag.cmd || []; var bbcdotcom = false; (function(){ if(typeof require !== 'undefined') { require({ paths:{ "bbcdotcom":"https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/bbcdotcom/1.74.413/script" } }); } })(); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ var bbcdotcom = { adverts: { keyValues: { set: function() {} } }, advert: { write: function () {}, show: function () {}, isActive: function () { return false; }, layout: function() { return { reset: function() {} } } }, config: { init: function() {}, isActive: function() {}, setSections: function() {}, isAdsEnabled: function() {}, setAdsEnabled: function() {}, isAnalyticsEnabled: function() {}, setAnalyticsEnabled: function() {}, setAssetPrefix: function() {}, setVersion: function () {}, setJsPrefix: function() {}, setSwfPrefix: function() {}, setCssPrefix: function() {}, setConfig: function() {}, getAssetPrefix: function() {}, getJsPrefix: function () {}, getSwfPrefix: function () {}, getCssPrefix: function () {}, isOptimizelyEnabled: function() {} }, survey: { init: function(){ return false; } }, data: {}, init: function() {}, objects: function(str) { return false; }, locale: { set: function() {}, get: function() {} }, setAdKeyValue: function() {}, utils: { addEvent: function() {}, addHtmlTagClass: function() {}, log: function () {} }, addLoadEvent: function() {} }; /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function(){ if (typeof orb !== 'undefined' && typeof orb.fig === 'function') { if (orb.fig('ad') && orb.fig('uk') == 0) { bbcdotcom.data = { ads: (orb.fig('ad') ? 1 : 0), stats: (orb.fig('uk') == 0 ? 1 : 0), statsProvider: orb.fig('ap') }; } } else { document.write('<script type="text/javascript" src="'+('https:' == document.location.protocol ? 'https://web.archive.org/web/20180213134618/https://www.bbc.com' : 'https://web.archive.org/web/20180213134618/http://tps.bbc.com')+'/wwscripts/data">\x3C/script>'); } })(); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function(){ if (typeof orb === 'undefined' || typeof orb.fig !== 'function') { bbcdotcom.data = { ads: bbcdotcom.data.a, stats: bbcdotcom.data.b, statsProvider: bbcdotcom.data.c }; } if (bbcdotcom.data.ads == 1) { document.write('<script type="text/javascript" src="'+('https:' == document.location.protocol ? 'https://web.archive.org/web/20180213134618/https://www.bbc.com' : 'https://web.archive.org/web/20180213134618/http://www.bbc.com')+'/wwscripts/flag">\x3C/script>'); } })(); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function(){ if (window.bbcdotcom && (typeof bbcdotcom.flag == 'undefined' || (typeof bbcdotcom.data.ads !== 'undefined' && bbcdotcom.flag.a != 1))) { bbcdotcom.data.ads = 0; } if (/[?|&]ads/.test(window.location.href) || /(^|; )ads=on; /.test(document.cookie) || /; ads=on(; |$)/.test(document.cookie)) { bbcdotcom.data.ads = 1; bbcdotcom.data.stats = 1; } if (window.bbcdotcom && (bbcdotcom.data.ads == 1 || bbcdotcom.data.stats == 1)) { bbcdotcom.assetPrefix = "https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/bbcdotcom/1.74.413/"; if (/(sandbox|int)(.dev)*.bbc.co*/.test(window.location.href) || /[?|&]ads-debug/.test(window.location.href) || document.cookie.indexOf('ads-debug=') !== -1) { document.write('<link rel="stylesheet" type="text/css" href="https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/bbcdotcom/1.74.413/style/dist/bbcdotcom.dev.css" />'); } else { document.write('<link rel="stylesheet" type="text/css" href="https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/bbcdotcom/1.74.413/style/dist/bbcdotcom.css" />'); } (function() { var useSSL = 'https:' == document.location.protocol; var src = (useSSL ? 'https:' : 'http:') + '//web.archive.org/web/20180213134618/http://www.googletagservices.com/tag/js/gpt.js'; document.write('<scr' + 'ipt src="' + src + '">\x3C/script>'); })(); if (/(sandbox|int)(.dev)*.bbc.co*/.test(window.location.href) || /[?|&]ads-debug/.test(window.location.href) || document.cookie.indexOf('ads-debug=') !== -1) { document.write('<script type="text/javascript" src="https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/bbcdotcom/1.74.413/script/dist/bbcdotcom.dev.js">\x3C/script>'); } else { document.write('<script type="text/javascript" src="https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/bbcdotcom/1.74.413/script/dist/bbcdotcom.js">\x3C/script>'); } } })(); /*]]>*/ </script><script type="text/javascript"> if (window.bbcdotcom && bbcdotcom.data.stats == 1) { document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20180213134618/http://secure-us.imrworldwide.com/">'); document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20180213134618/http://me-cdn.effectivemeasure.net/">'); document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20180213134618/http://ssc.api.bbc.com/">'); } if (window.bbcdotcom && bbcdotcom.data.ads == 1) { document.write('<link rel="dns-prefetch" href="//web.archive.org/web/20180213134618/http://www.googletagservices.com/">'); } </script><script type="text/javascript"> if (window.bbcdotcom && bbcdotcom.data.ads == 1) { document.write('<meta name="google-site-verification" content="auTeTTwSt_KBY_4iDoR00Lwb7-qzx1IgzJy6ztaWgEI" />'); } </script><script type="text/javascript"> /*<![CDATA[*/ (function(){ if (window.bbcdotcom && (bbcdotcom.data.ads == 1 || bbcdotcom.data.stats == 1)) { bbcdotcomConfig = {"adFormat":"standard","adKeyword":"","adMode":"smart","adsEnabled":false,"appAnalyticsSections":"","asyncEnabled":false,"disableInitialLoad":false,"advertInfoPageUrl":"https:\/\/web.archive.org\/web\/20180213134618\/http:\/\/www.bbc.com\/privacy\/cookies\/international\/","advertisementText":"Advertisement","analyticsEnabled":true,"appName":"programmes","assetPrefix":"https:\/\/web.archive.org\/web\/20180213134618\/http:\/\/static.bbci.co.uk\/bbcdotcom\/1.74.413\/","customAdParams":[],"customStatsParams":[],"headline":"","id":"","inAssociationWithText":"in association with","keywords":"","language":"","orbTransitional":false,"outbrainEnabled":true,"outbrainSportEnabled":true,"adsenseEnabled":true,"adsportappEnabled":true,"lotameEnabled":true,"platinumEnabled":true,"tlNewsIndexEnabled":false,"tlNewsStoryEnabled":false,"tlNewsFpEnabled":false,"winterOlympicsEnabled":false,"optimizelyEnabled":false,"grapeshotEnabled":false,"palEnv":"live","productName":"","sections":[],"comScoreEnabled":true,"comscoreSite":"bbc","comscoreID":"19293874","comscorePageName":"","slots":"","sponsoredByText":"is sponsored by","adsByGoogleText":"Ads by Google","summary":"","type":"","features":{"testfeature":{"name":"testfeature","envs":["sandbox","int","test"],"on":true,"options":{},"override":null},"lxadverts":{"name":"lxadverts","envs":[],"on":true,"options":{},"override":null}},"staticBase":"\/bbcdotcom","staticHost":"https:\/\/web.archive.org\/web\/20180213134618\/http:\/\/static.bbci.co.uk","staticVersion":"1.74.413","staticPrefix":"https:\/\/web.archive.org\/web\/20180213134618\/http:\/\/static.bbci.co.uk\/bbcdotcom\/1.74.413","dataHttp":"tps.bbc.com","dataHttps":"www.bbc.com","flagHttp":"www.bbc.co.uk","flagHttps":"www.bbc.co.uk","analyticsHttp":"sa.bbc.com","analyticsHttps":"ssa.bbc.com"}; bbcdotcom.config.init(bbcdotcomConfig, bbcdotcom.data, window.location, window.document); bbcdotcom.config.setAssetPrefix("https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/bbcdotcom/1.74.413/"); bbcdotcom.config.setVersion("1.74.413"); document.write('<!--[if IE 7]><script type="text/javascript">bbcdotcom.config.setIE7(true);\x3C/script><![endif]-->'); document.write('<!--[if IE 8]><script type="text/javascript">bbcdotcom.config.setIE8(true);\x3C/script><![endif]-->'); document.write('<!--[if IE 9]><script type="text/javascript">bbcdotcom.config.setIE9(true);\x3C/script><![endif]-->'); if (/[?|&]ex-dp/.test(window.location.href) || document.cookie.indexOf('ex-dp=') !== -1) { bbcdotcom.utils.addHtmlTagClass('bbcdotcom-ex-dp'); } } })(); /*]]>*/ </script><script type="text/javascript"> var initOptimizely = (function(isEnabled){ if(!isEnabled) return; var logger = window.bbcdotcom.Logger('bbcdotcom:head:optimizely'); /* Allow Optimizely in these paths */ var allowPaths = ['/', '/wwhp']; /* Only run on optimizely on homepage */ if (bbcdotcom.utils && allowPaths.indexOf(window.location.pathname) !== -1 && window.bbccookies && bbccookies.readPolicy('performance') ){ /* set correct OptimizelyURL for prod or sandbox */ var optimizelyURL = "https://web.archive.org/web/20180213134618/https://cdn.optimizely.com/public/4621041136/s/bbccom_sandbox.js"; if(window.location.hostname === 'www.bbc.com') { optimizelyURL = "https://web.archive.org/web/20180213134618/https://cdn.optimizely.com/public/4621041136/s/bbccom_prod.js"; } /* Set cookie to 1 year */ window['optimizely'] = window['optimizely'] || []; window['optimizely'].push({ "type": "cookieExpiration", "cookieExpirationDays": 365 }); /* Require Optimizely script and initialize tests */ require(['jquery-1', optimizelyURL], function($) { var optimizely = window['optimizely']; /* Start optimizely experiments */ /* End optimizely experiments */ }); } })( bbcdotcom.config.isOptimizelyEnabled() ); </script><script type="text/javascript"> /*<![CDATA[*/ (function() { window.bbcdotcom.head = true; }()); /*]]>*/ </script> <!--Searchbox:136--> <script type="text/javascript"> // Globally available search context window.SEARCHBOX={"variant":"default","locale":"en","navSearchboxStaticPrefix":"//web.archive.org/web/20180213134618/http://nav.files.bbci.co.uk/searchbox/1.0.0-136","searchboxAppStaticPrefix":"//web.archive.org/web/20180213134618/http://search.files.bbci.co.uk/searchbox-app/1.0.19","searchFormHtml":"<div tabindex=\"-1\" data-reactid=\".jval9y49og\" data-react-checksum=\"1886463233\"><div data-reactid=\".jval9y49og.0\"><section class=\"se-searchbox-panel\" data-reactid=\".jval9y49og.0.0\"><div class=\"se-g-wrap\" data-reactid=\".jval9y49og.0.0.0\"><div class=\"se-g-layout\" data-reactid=\".jval9y49og.0.0.0.0\"><div class=\"se-g-layout__item se-searchbox-title\" aria-hidden=\"true\" data-reactid=\".jval9y49og.0.0.0.0.0\">search</div><div class=\"se-g-layout__item se-searchbox\" data-reactid=\".jval9y49og.0.0.0.0.1\"><form accept-charset=\"utf-8\" id=\"searchboxDrawerForm\" method=\"get\" action=\"https://search.bbc.co.uk/search\" data-reactid=\".jval9y49og.0.0.0.0.1.0\"><label class=\"se-searchbox__input\" for=\"se-searchbox-input-field\" data-reactid=\".jval9y49og.0.0.0.0.1.0.0\"><span class=\"se-sr-only\" data-reactid=\".jval9y49og.0.0.0.0.1.0.0.0\">Search Term</span><input name=\"q\" type=\"text\" value=\"\" id=\"se-searchbox-input-field\" class=\"se-searchbox__input__field\" maxlength=\"512\" autocomplete=\"off\" autocorrect=\"off\" autocapitalize=\"off\" spellcheck=\"false\" tabindex=\"0\" data-reactid=\".jval9y49og.0.0.0.0.1.0.0.1\"/></label><input type=\"hidden\" name=\"scope\" value=\"\" data-reactid=\".jval9y49og.0.0.0.0.1.0.2\"/><button type=\"submit\" class=\"se-searchbox__submit\" tabindex=\"0\" data-reactid=\".jval9y49og.0.0.0.0.1.0.3\">Search</button><button type=\"button\" class=\"se-searchbox__clear se-searchbox__clear--visible\" tabindex=\"0\" data-reactid=\".jval9y49og.0.0.0.0.1.0.4\">Close</button></form></div></div></div></section><div aria-live=\"polite\" aria-atomic=\"true\" class=\"se-suggestions-container\" data-reactid=\".jval9y49og.0.1\"><section class=\"se-g-wrap\" data-reactid=\".jval9y49og.0.1.0\"></section></div></div></div>","searchScopePlaceholder":"<input type=\"hidden\" name=\"scope\" id=\"orb-search-scope\" value=\"iplayer:radio\">","searchScopeParam":"?scope=iplayer:radio","searchScopeTemplate":"iplayer:radio","searchPlaceholderWrapperStart":"","searchPlaceholderWrapperEnd":""}; window.SEARCHBOX.suppress = false; window.SEARCHBOX.searchScope = SEARCHBOX.searchScopeTemplate.split('-')[0]; </script> <link rel="stylesheet" href="//web.archive.org/web/20180213134618cs_/http://nav.files.bbci.co.uk/searchbox/1.0.0-136/css/main.css"> <!--[if IE 8]> <script type="text/javascript" src="//nav.files.bbci.co.uk/searchbox/1.0.0-136/script/html5shiv.min.js"></script> <script type="text/javascript">window['searchboxIEVersion'] = 8;</script> <link rel="stylesheet" href="//nav.files.bbci.co.uk/searchbox/1.0.0-136/css/ie8.css"> <![endif]--> <!--[if IE 9]> <script type="text/javascript">window['searchboxIEVersion'] = 9;</script> <![endif]--> <!--NavID:0.2.0-152--> <link rel="stylesheet" href="//web.archive.org/web/20180213134618cs_/http://static.bbc.co.uk/id/0.37.24/style/id-cta.css"/> <link rel="stylesheet" href="//web.archive.org/web/20180213134618cs_/http://static.bbc.co.uk/id/0.37.24/style/id-cta-v5.css"/> <!--[if IE 8]><link href="//static.bbc.co.uk/id/0.37.24/style/ie8.css" rel="stylesheet"/> <![endif]--> <script type="text/javascript"> /* <![CDATA[ */ var map = {}; if (typeof(map['jssignals-1']) == 'undefined') { map['jssignals-1'] = 'https://web.archive.org/web/20180213134618/https://static.bbc.co.uk/frameworks/jssignals/0.3.6/modules/jssignals-1'; } require({paths: map}); /* ]]> */ </script> <script src="//web.archive.org/web/20180213134618js_/http://static.bbc.co.uk/id/0.37.24/modules/idcta/dist/idcta-1.min.js"></script> <script type="text/javascript"> (function () { if (!window.require) { throw new Error('idcta: could not find require module'); } if(typeof(map) == 'undefined') { var map = {}; } if(!!document.createElementNS && !!document.createElementNS('http://www.w3.org/2000/svg', "svg").createSVGRect) { document.documentElement.className += ' id-svg'; } var ptrt = RegExp("[\\?&]ptrt=([^&#]*)").exec(document.location.href); var ENDPOINT_URL = '//' + ((window.location.protocol == "https:") ? ('ssl.bbc.co.uk').replace("www.", "ssl.") : ('ssl.bbc.co.uk').replace("ssl.", "www.")); var ENDPOINT_CONFIG = ('/idcta/config?callback&locale=en-GB&ptrt=' + encodeURI((ptrt ? ptrt[1] : document.location.href))).replace(/\&/g, '&'); var ENDPOINT_TRANSLATIONS = '/idcta/translations?callback&locale=en-GB'; map['idapp-1'] = '//web.archive.org/web/20180213134618/http://static.bbc.co.uk/idapp/0.72.58/modules/idapp/idapp-1'; map['idcta'] = '//web.archive.org/web/20180213134618/http://static.bbc.co.uk/id/0.37.24/modules/idcta'; map['idcta/config'] = [ENDPOINT_URL + ENDPOINT_CONFIG, '//web.archive.org/web/20180213134618/http://static.bbc.co.uk/id/0.37.24/modules/idcta/fallbackConfig']; map['idcta/translations'] = [ENDPOINT_URL + ENDPOINT_TRANSLATIONS, '//web.archive.org/web/20180213134618/http://static.bbc.co.uk/id/0.37.24/modules/idcta/fallbackTranslations']; require({paths: map}); /* * Temporary code * To be removed when old id-statusbar-config is no longer supported */ define('id-statusbar-config', ['idcta/id-config'], function(conf) { return conf; }); define('idcta/id-statusbar-config', ['idcta/id-config'], function(conf) { return conf; }); })(); </script> <link rel="stylesheet" href="//web.archive.org/web/20180213134618cs_/http://mybbc.files.bbci.co.uk/notification-ui/3.8.4/css/main.min.css"/> <!-- BRANDINGID: br-00419 --> <!--[if (gt IE 8)|!(IE)]><!--> <link rel="stylesheet" href="//web.archive.org/web/20180213134618cs_/http://branding.files.bbci.co.uk/branding/live/css/231578bd2395a7e0bbc879a3e2b88e43.css"/> <!--<![endif]--> <!--[if (lt IE 9)&(!IEMobile)]> <link rel="stylesheet" href="//branding.files.bbci.co.uk/branding/live/css/89f33bdddddda534b2acbc0260ae5728.css" /> <![endif]--> <link rel="stylesheet" type="text/css" href="//web.archive.org/web/20180213134618cs_/http://rmp.files.bbci.co.uk/radio-nav-service/504/css/radionav.css"> <script> window.iprConfig = window.iprConfig || { products: {} }; window.iprConfig.products['radio-nav-service'] = { env: 'live', version: '504', date: '1518436943' }; </script> <script type="text/javascript" src="//web.archive.org/web/20180213134618js_/http://cdn.optimizely.com/public/4621041136/s/radio_prod.js"></script> <script> require({ paths: { radioNav: "//web.archive.org/web/20180213134618/http://rmp.files.bbci.co.uk/radio-nav-service/504/js/modules/radioNav", radioNavLazyLoading: "//web.archive.org/web/20180213134618/http://rmp.files.bbci.co.uk/radio-nav-service/504/js/modules/radioNavLazyLoading", radioNavStats: "//web.archive.org/web/20180213134618/http://rmp.files.bbci.co.uk/radio-nav-service/504/js/modules/radioNavStats", windowsPhoneApp: "//web.archive.org/web/20180213134618/http://rmp.files.bbci.co.uk/radio-nav-service/504/js/modules/windowsPhoneApp", handlebars: "//web.archive.org/web/20180213134618/http://rmp.files.bbci.co.uk/radio-nav-service/504/js/modules/handlebars.min", 'bump-3': "//web.archive.org/web/20180213134618/http://emp.bbci.co.uk/emp/bump-3/bump-3", 'msi/content-loader': "//web.archive.org/web/20180213134618/http://rmp.files.bbci.co.uk/radio-msi/latest", 'optimizely-dax' : "//web.archive.org/web/20180213134618/http://rmp.files.bbci.co.uk/radio-nav-service/504/js/modules/dax" } }); require(['istats-1', 'optimizely-dax'], function (istats, optimizelyDax) { optimizelyDax.init(istats); }); </script> <!-- ChartBeat --> <script type="text/javascript"> function getCookie(cname) { var name = cname + "="; var ca = document.cookie.split(';'); for(var i=0; i<ca.length; i++) { var c = ca[i]; while (c.charAt(0)==' ') c = c.substring(1); if (c.indexOf(name) == 0) return c.substring(name.length,c.length); } return "none"; } (function(){ function loadChartbeat() { // Don't load chartbeat if it's been configured already if (window._sf_async_config) { return; } window._sf_async_config = {}; var _sf_async_config = window._sf_async_config; /** CONFIGURATION START **/ _sf_async_config.uid = 50924; _sf_async_config.domain = "bbc.co.uk"; _sf_async_config.useCanonical = true; _sf_async_config.authors = ""; _sf_async_config.path = document.location.pathname; /** CONFIGURATION END **/ var ckns = getCookie('ckns_policy'), bodyClasses = document.body.className.split(' '), bodyAttribute = document.body.getAttribute('data-page-masterbrand'), serviceId; for (var i = 0; i < bodyClasses.length; i++) { var value = bodyClasses[i]; if ( value.substring(0, 4) === "nhp-" ) { serviceId = value.replace("nhp-",''); } } _sf_async_config.sections = "radio, " + (serviceId ? serviceId : bodyAttribute || ''); if (ckns == '000' || ckns == '010' || ckns == '110' || ckns == "none") { _sf_async_config.noCookies = true; } else { window._sf_endpt = (new Date()).getTime(); var e = document.createElement("script"); e.setAttribute("language", "javascript"); e.setAttribute("type", "text/javascript"); e.setAttribute('src', '//web.archive.org/web/20180213134618/http://static.chartbeat.com/js/chartbeat.js'); document.body.appendChild(e); } } var oldonload = window.onload; window.onload = (typeof window.onload != "function") ? loadChartbeat : function() { oldonload(); loadChartbeat(); }; })(); </script> <link rel="stylesheet" href="https://web.archive.org/web/20180213134618cs_/https://static.bbci.co.uk/radioonairpanel/0.2.6.20180131153656/styles/panel.css"> <style> .br-masthead #programmes-oap .programmes-oap-item { color: #fff; background-color: #002C5F; } .br-masthead #programmes-oap a { color: #fff; } .br-masthead #programmes-oap a.programmes-oap-item:hover, .br-masthead #programmes-oap a.programmes-oap-item:active, .br-masthead #programmes-oap a.programmes-oap-item:focus { background-color: #04172D; } .service-brand-logo-master { display: block; background-color: #002C5F; background-image: url('data: image/png;base64,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'); } .br-service-brand-box { background-color: #002C5F; } .br-service-brand-box--alt { background: #001A39; } </style> <!--[if (gt IE 8)|!(IE)]><!--> <style> @media (min-width: 37.5em) { .service-brand-logo-master { background-image: url('data: image/png;base64,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'); } } </style> <!--<![endif]--> <!--[if (lt IE 9)&(!IEMobile)]> <style> .service-brand-logo-master { background-image: url('data: image/png;base64,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'); } </style> <![endif]--> <!--[if (gt IE 8)|!(IE)]><!--> <link rel="stylesheet" href="https://web.archive.org/web/20180213134618cs_/http://static.bbci.co.uk/programmes/2.277.0.173/styles/global.css"/> <!--<![endif]--> <!--[if (lt IE 9)&(!IEMobile)]> <link rel="stylesheet" href="http://static.bbci.co.uk/programmes/2.277.0.173/styles/global-ie.css" /> <link rel="stylesheet" href="http://static.bbci.co.uk/programmes/2.277.0.173/styles/print.css" media="print" /> <![endif]--> <link rel="icon" href="https://web.archive.org/web/20180213134618im_/http://www.bbc.co.uk/favicon.ico" type="image/x-icon"/> <meta name="twitter:card" content="summary_large_image"/> <meta property="og:site_name" content="BBC"/> <meta property="og:title" content="Radio 4 in Four - Pick up a puzzle: 7 scintillating brainteasers to have as a hobby - BBC Radio 4"/> <meta property="og:url" content="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&#38;intc_location=news&#38;intc_campaign=brainteasers&#38;intc_linkname=radio4_fac_article"/> <meta property="fb:pages" content="194575130577797,7397061762,7833211321,129044383774217,401538510458,8251776107,273726292719943,107909022566650,21750735380,1477945425811579,944295152308991,154344434967,8244244903,512423982152360,156060587793370,215504865453262,260967092113,1392506827668140,193435954068976,7519460786,1143803202301544,1470145583204820,470911516262605,413132078795966,118883634811868,130593816777,228735667216,80758950658,260212261199,294662213128,1086451581439050,283348121682053,295830058648,239931389545417,304314573046,310719525611571,647687225371774,1159932557403143,286567251709437,1731770190373618,125309456546,742734325867560,168895963122035,292291897588734,658551547588605,156400551056385,185246968166196,1411916919051820,958681370814419,317278538359186,8585725981,1436581493296600,163571453661989,6025943146,193022337414607,1659215157653827"> <script type="text/javascript"> var highlight_colour = '01625D', bbcProgrammes = { casting : 'true', counterName : "programmes.radio_4_in_four.brand.p025ht2f.articles.jrvwx2hzq1m948wvjvjrfr.pick_up_a_puzzle_7_scintillating_brainteasers_to_have_as_a_hobby.page", highlightColour : '01625D', highlightText : 'FFFFFF' }; require.config({ paths : { 'bump-3' : '//web.archive.org/web/20180213134618/http://emp.bbci.co.uk/emp/bump-3/bump-3', 'embed': 'https://web.archive.org/web/20180213134618/http://play.bbc.co.uk/play/sdk/embed/v1/latest' }, priority: ['jquery-1.9', 'rv-bootstrap'] }); </script> <meta property="og:type" content="website"/> <meta name="theme-color" content="#01625D"/><meta property="og:description" content="Looking for a new hobby? Try wrapping your head around these mind-bending brainteasers. "/> <meta property="og:image" content="https://web.archive.org/web/20180213134618im_/https://ichef.bbci.co.uk/images/ic/1200x675/p05w2dvw.jpg"/> <link rel="image_src" href="https://web.archive.org/web/20180213134618im_/https://ichef.bbci.co.uk/images/ic/1200x675/p05w2dvw.jpg"/> <link rel="shortcut icon" sizes="196x196" href="https://web.archive.org/web/20180213134618im_/https://ichef.bbci.co.uk/images/ic/208x208/p05w2dvw.jpg"/> <link rel="shortcut icon" sizes="128x128" href="https://web.archive.org/web/20180213134618im_/https://ichef.bbci.co.uk/images/ic/128x128/p05w2dvw.jpg"/> <link href="https://web.archive.org/web/20180213134618im_/https://ichef.bbci.co.uk/images/ic/80x80/p05w2dvw.jpg" rel="apple-touch-icon"/> <link href="https://web.archive.org/web/20180213134618im_/https://ichef.bbci.co.uk/images/ic/128x128/p05w2dvw.jpg" rel="apple-touch-icon" sizes="120x120"/> <link href="https://web.archive.org/web/20180213134618im_/https://ichef.bbci.co.uk/images/ic/160x160/p05w2dvw.jpg" rel="apple-touch-icon" sizes="152x152"/> <meta name="msapplication-square150x150logo" content="https://ichef.bbci.co.uk/images/ic/272x272/p05w2dvw.jpg"/> <meta name="apple-itunes-app" content="app-id=560458506, app-argument=www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&#38;intc_location=news&#38;intc_campaign=brainteasers&#38;intc_linkname=radio4_fac_article?bbc_referrer=http%3A%2F%2Fwww.bbc.co.uk%2Fprogrammes%2Farticles%2FJRvwx2hZQ1m948wVJvjrfR%2Fpick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby%3Fintc_type%3Dpromo%26%2338%3Bintc_location%3Dnews%26%2338%3Bintc_campaign%3Dbrainteasers%26%2338%3Bintc_linkname%3Dradio4_fac_article"/> <script type="text/javascript"> window.programme_data = { pid : 'p025ht2f', type : 'brand' }; bbcProgrammes.programme = { pid : 'p025ht2f', type : 'brand' }; </script> <!-- iSite2 Project (Tenant space): progs-radio4and4extra --> <link rel="canonical" href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&#38;intc_location=news&#38;intc_campaign=brainteasers&#38;intc_linkname=radio4_fac_article"/> <script>document.documentElement.className += ' has-js';/* add a js class */</script> <script> (function() { if ("-ms-user-select" in document.documentElement.style && navigator.userAgent.match(/IEMobile\/10\.0/)) { var msViewportStyle = document.createElement("style"); msViewportStyle.appendChild( document.createTextNode("@-ms-viewport{width:auto!important}") ); document.getElementsByTagName("head")[0].appendChild(msViewportStyle); } })(); </script> </head> <body data-page-programme="p025ht2f" data-page-tleo="p025ht2f" data-page-programme-type="brand" data-page-masterbrand="bbc_radio_four" data-page-masterbrand-type="radio" data-language="en-GB" class="no-touch language-en-GB" vocab="http://schema.org/" typeof="RadioSeries"> <!-- BBCDOTCOM bodyFirst --><div id="bbccom_interstitial_ad" class="bbccom_display_none"></div><div id="bbccom_interstitial" class="bbccom_display_none"><script type="text/javascript"> /*<![CDATA[*/ (function() { if (window.bbcdotcom && bbcdotcom.config.isActive('ads')) { googletag.cmd.push(function() { googletag.display('bbccom_interstitial'); }); } }()); /*]]>*/ </script></div><div id="bbccom_wallpaper_ad" class="bbccom_display_none"></div><div id="bbccom_wallpaper" class="bbccom_display_none"><script type="text/javascript"> /*<![CDATA[*/ (function() { var wallpaper; if (window.bbcdotcom && bbcdotcom.config.isActive('ads')) { if (bbcdotcom.config.isAsync()) { googletag.cmd.push(function() { googletag.display('bbccom_wallpaper'); }); } else if (typeof googletag !== "undefined" && typeof googletag.display === "function") { googletag.display("wallpaper"); } wallpaper = bbcdotcom.adverts.adRegister.getAd('wallpaper'); } }()); /*]]>*/ </script></div><script type="text/javascript"> /*<![CDATA[*/ (function() { if (window.bbcdotcom && bbcdotcom.config.isActive('ads')) { document.write(unescape('%3Cscript id="gnlAdsEnabled" class="bbccom_display_none"%3E%3C/script%3E')); } if (window.bbcdotcom && bbcdotcom.config.isActive('analytics')) { document.write(unescape('%3Cscript id="gnlAnalyticsEnabled" class="bbccom_display_none"%3E%3C/script%3E')); } }()); /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function() { window.bbcdotcom.bodyFirst = true; }()); /*]]>*/ </script> <div id="blq-global"> <div id="blq-pre-mast"> </div> </div> <script type="text/html" id="blq-bbccookies-tmpl"><![CDATA[ <section> <div id="bbccookies" class="bbccookies-banner orb-banner-wrapper bbccookies-d"> <div id="bbccookies-prompt" class="orb-banner b-g-p b-r b-f"> <h2 class="orb-banner-title"> Cookies on the BBC website </h2> <p class="orb-banner-content" dir="ltr"> The BBC has updated its cookie policy. We use cookies to ensure that we give you the best experience on our website. This includes cookies from third party social media websites if you visit a page which contains embedded content from social media. Such third party cookies may track your use of the BBC website.<span class="bbccookies-international-message"> We and our partners also use cookies to ensure we show you advertising that is relevant to you.</span> If you continue without changing your settings, we'll assume that you are happy to receive all cookies on the BBC website. However, you can change your cookie settings at any time. </p> <ul class="orb-banner-options"> <li id="bbccookies-continue"> <button type="button" id="bbccookies-continue-button">Continue</button> </li> <li id="bbccookies-settings"> <a href="/privacy/cookies/managing/cookie-settings.html">Change settings</a> </li> <li id="bbccookies-more"><a href="/privacy/cookies/bbc">Find out more</a></li></ul> </div> </div> </section> ]]></script> <script type="text/javascript">/*<![CDATA[*/ (function(){if(bbccookies._showPrompt()){var g=document,b=g.getElementById("blq-pre-mast"),e=g.getElementById("blq-bbccookies-tmpl"),a,f;if(b&&g.createElement){a=g.createElement("div");f=e.innerHTML;f=f.replace("<"+"![CDATA[","").replace("]]"+">","");a.innerHTML=f;b.appendChild(a);blqCookieContinueButton=g.getElementById("bbccookies-continue-button");blqCookieContinueButton.onclick=function(){a.parentNode.removeChild(a);return false};bbccookies._setPolicy(bbccookies.readPolicy())}var c=g.getElementById("bbccookies");if(c&&!window.orb.fig("uk")){c.className=c.className.replace(/\bbbccookies-d\b/,"");c.className=c.className+(" bbccookies-w")}}})(); /*]]>*/</script> <noscript><p style="position: absolute; top: -999em"><img src="https://web.archive.org/web/20180213134618im_/https://sa.bbc.co.uk/bbc/bbc/s?name=programmes.radio_4_in_four.brand.p025ht2f.articles.jrvwx2hzq1m948wvjvjrfr.pick_up_a_puzzle_7_scintillating_brainteasers_to_have_as_a_hobby.page&ml_name=webmodule&ml_version=89&blq_js_enabled=0&blq_s=4d&blq_r=2.7&blq_v=default&blq_e=pal&app_name=programmes&prod_name=programmes&app_version=2.277.0.173&brand_id=p025ht2f&programme_title=Radio+4+in+Four&brand_title=Radio+4+in+Four&pips_genre_group_ids=C00193%2C+C00017%2C+C00200%2C+C00045%2C+C00079%2C+C00080&rec_app_id=programmes&rec_v=2&rec_p=null_null_2&event_master_brand=bbc_radio_four&progs_page_type=article_show&bbc_site=iplayerradio-radio4&progs_content_block_0=progs_ancillary_image&progs_content_block_1=progs_ancillary_prose&progs_content_block_2=progs_ancillary_prose&progs_content_block_3=progs_ancillary_prose&progs_content_block_4=progs_ancillary_prose&progs_content_block_5=progs_ancillary_prose&progs_content_block_6=progs_ancillary_prose&progs_content_block_7=progs_ancillary_prose&progs_content_block_8=progs_ancillary_promotions&pal_route=programmes_article&app_type=responsive&language=en-GB&pal_webapp=programmes" height="1" width="1" alt=""></p></noscript> <!-- Begin iStats 20100118 (UX-CMC 1.1009.3) --> <script type="text/javascript">/*<![CDATA[*/ if (typeof bbccookies !== 'undefined' && bbccookies.isAllowed('s1')) { (function () { require(['istats-1'], function (istats) { istatsTrackingUrl = istats.getDefaultURL(); if (istats.isEnabled() && bbcFlagpoles_istats === 'ON') { sitestat(istatsTrackingUrl); } else { window.ns_pixelUrl = istatsTrackingUrl; /* used by Flash library to track */ } function sitestat(n) { var j = document, f = j.location, b = ""; if (j.cookie.indexOf("st_ux=") != -1) { var k = j.cookie.split(";"); var e = "st_ux", h = document.domain, a = "/"; if (typeof ns_ != "undefined" && typeof ns_.ux != "undefined") { e = ns_.ux.cName || e; h = ns_.ux.cDomain || h; a = ns_.ux.cPath || a } for (var g = 0, f = k.length; g < f; g++) { var m = k[g].indexOf("st_ux="); if (m != -1) { b = "&" + decodeURI(k[g].substring(m + 6)) } } bbccookies.set(e + "=; expires=" + new Date(new Date().getTime() - 60).toGMTString() + "; path=" + a + "; domain=" + h); } window.ns_pixelUrl = n; } }); })(); } else { window.istats = {enabled: false}; } /*]]>*/</script> <!-- End iStats (UX-CMC) --> <!--[if (gt IE 8) | (IEMobile)]><!--> <header id="orb-banner" role="banner"> <!--<![endif]--> <!--[if (lt IE 9) & (!IEMobile)]> <![if (IE 8)]> <header id="orb-banner" role="banner" class="orb-old-ie orb-ie8"> <![endif]> <![if (IE 7)]> <header id="orb-banner" role="banner" class="orb-old-ie orb-ie7"> <![endif]> <![if (IE 6)]> <header id="orb-banner" role="banner" class="orb-old-ie orb-ie6"> <![endif]> <![endif]--> <div id="orb-header" class="orb-nav-pri orb-nav-pri-black b-header--black--white orb-nav-empty"> <div class="orb-nav-pri-container b-r b-g-p"> <div class="orb-nav-section orb-nav-blocks"> <a href="/web/20180213134618/http://www.bbc.co.uk/"> <img class="orb-nav-theme-dynamic" src="https://web.archive.org/web/20180213134618im_/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/img/bbc-blocks-light.png" width="84" height="24" alt="BBC" data-activesrc="https://web.archive.org/web/20180213134618/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/img/bbc-blocks-dark.png"/> </a> </div> <section> <div class="orb-skip-links"> <h2>Accessibility links</h2> <ul> <li><a href="#programmes-main-content">Skip to content</a></li> <li><a id="orb-accessibility-help" href="/web/20180213134618/http://www.bbc.co.uk/accessibility/">Accessibility Help</a></li> </ul> </div> </section> <div id="mybbc-wrapper" class="orb-nav-section orb-nav-id orb-nav-focus"> <div id="idcta-statusbar" class="orb-nav-section orb-nav-focus"> <a id="idcta-link" href="https://web.archive.org/web/20180213134618/https://account.bbc.com/account?ptrt=http%3A%2F%2Fwww.bbc.co.uk%2Fprogrammes%2Farticles%2FJRvwx2hZQ1m948wVJvjrfR%2Fpick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby%3Fintc_type%3Dpromo%26intc_location%3Dnews%26intc_campaign%3Dbrainteasers%26intc_linkname%3Dradio4_fac_article"> <span id="idcta-username">BBC iD</span> </a> </div> <script type="text/javascript"> require(['idcta/statusbar'], function(statusbar) { new statusbar.Statusbar({"id":"idcta-statusbar","publiclyCacheable":true}); }); </script> <a id="notification-link" class="js-notification-link animated three" href="#"> <span class="hidden-span">Notifications</span> <div class="notification-link--triangle"></div> <div class="notification-link--triangle"></div> <span id="not-num"></span> </a> </div> <nav role="navigation" class="orb-nav"> <div class="orb-nav-section orb-nav-links orb-nav-focus" id="orb-nav-links"> <h2>BBC navigation</h2> <ul> <li class="orb-nav-home orb-d"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/">Home</a> </li> <li class="orb-nav-homedotcom orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/">Home</a> </li> <li class="orb-nav-news orb-d"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/news">News</a> </li> <li class="orb-nav-newsdotcom orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/news">News</a> </li> <li class="orb-nav-sport"> <a href="/web/20180213134618/http://www.bbc.co.uk/sport/">Sport</a> </li> <li class="orb-nav-weather"> <a href="/web/20180213134618/http://www.bbc.co.uk/weather/">Weather</a> </li> <li class="orb-nav-shop orb-w"> <a href="https://web.archive.org/web/20180213134618/http://shop.bbc.com/">Shop</a> </li> <li class="orb-nav-earthdotcom orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/earth/">Earth</a> </li> <li class="orb-nav-travel-dotcom orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/travel/">Travel</a> </li> <li class="orb-nav-capital orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/capital/">Capital</a> </li> <li class="orb-nav-iplayer orb-d"> <a href="/web/20180213134618/http://www.bbc.co.uk/iplayer/">iPlayer</a> </li> <li class="orb-nav-culture orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/culture/">Culture</a> </li> <li class="orb-nav-autos orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/autos/">Autos</a> </li> <li class="orb-nav-future orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/future/">Future</a> </li> <li class="orb-nav-tv"> <a href="/web/20180213134618/http://www.bbc.co.uk/tv/">TV</a> </li> <li class="orb-nav-radio"> <a href="/web/20180213134618/http://www.bbc.co.uk/radio/">Radio</a> </li> <li class="orb-nav-cbbc"> <a href="/web/20180213134618/http://www.bbc.co.uk/cbbc">CBBC</a> </li> <li class="orb-nav-cbeebies"> <a href="/web/20180213134618/http://www.bbc.co.uk/cbeebies">CBeebies</a> </li> <li class="orb-nav-food"> <a href="/web/20180213134618/http://www.bbc.co.uk/food/">Food</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/iwonder">iWonder</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/education">Bitesize</a> </li> <li class="orb-nav-travel orb-d"> <a href="/web/20180213134618/http://www.bbc.co.uk/travel/">Travel</a> </li> <li class="orb-nav-music"> <a href="/web/20180213134618/http://www.bbc.co.uk/music/">Music</a> </li> <li class="orb-nav-earth orb-d"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/earth/">Earth</a> </li> <li class="orb-nav-arts"> <a href="/web/20180213134618/http://www.bbc.co.uk/arts/">Arts</a> </li> <li class="orb-nav-makeitdigital"> <a href="/web/20180213134618/http://www.bbc.co.uk/makeitdigital">Make It Digital</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/taster">Taster</a> </li> <li class="orb-nav-nature orb-w"> <a href="/web/20180213134618/http://www.bbc.co.uk/nature/">Nature</a> </li> <li class="orb-nav-local"> <a href="/web/20180213134618/http://www.bbc.co.uk/local/">Local</a> </li> <li class="orb-nav-tomorrowsworld orb-d"> <a href="/web/20180213134618/http://www.bbc.co.uk/tomorrowsworld">Tomorrow's World</a> </li> <li id="orb-nav-more"><a href="#orb-footer" data-alt="More">Menu<span class="orb-icon orb-icon-arrow"></span></a></li> </ul> </div> </nav> <div class="orb-nav-section orb-nav-search"> <a class="orb-search__button" href="https://web.archive.org/web/20180213134618/https://search.bbc.co.uk/search?scope=iplayer:radio" title="Search the BBC">Search</a> <form class="b-f" id="orb-search-form" role="search" method="get" action="https://web.archive.org/web/20180213134618/https://search.bbc.co.uk/search" accept-charset="utf-8"> <div> <input type="hidden" name="scope" id="orb-search-scope" value="iplayer:radio"> <label for="orb-search-q">Search the BBC</label> <input id="orb-search-q" type="text" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false" name="q" placeholder="Search"> <button id="orb-search-button" class="orb-search__button">Search the BBC</button> <input type="hidden" name="suggid" id="orb-search-suggid"/> </div> </form> </div> </div> <div id="orb-panels"> <script type="text/template" id="orb-panel-template"><![CDATA[ <div id="orb-panel-<%= panelname %>" class="orb-panel" aria-labelledby="orb-nav-<%= panelname %>"> <div class="orb-panel-content b-g-p b-r"> <%= panelcontent %> </div> </div> ]]></script> </div> </div> </header> <!-- Styling hook for shared modules only --> <div id="orb-modules"> <div class="br-container"> <div class="br-productnav-container"><section class="radionav"> <div class="radionav__wrap b-g-m cf"> <section class="iplayer-radio__logo"> <a class="iplayer-radio__logo-link" href="/web/20180213134618/http://www.bbc.co.uk/radio" title="iPlayer Radio"> <i class="iplayer-radio__logo-i"></i> <i class="iplayer-radio__logo-pr"></i> <i class="iplayer-radio__logo-waves"></i> <span class="hidden">iPlayer Radio</span> </a> </section> <section class="radionav__content"> <nav role="navigation" class="radionav__panel"> <ul> <li class="radionav__panel-item radionav__panel-item--stations"> <a class="radionav__stations-link radionav-dropdown" data-panelid="stations" href="/web/20180213134618/http://www.bbc.co.uk/radio/stations"> Stations </a> </li><li class="radionav__panel-item radionav__panel-item--categories"> <a class="radionav__categories-link radionav-dropdown" data-panelid="categories" href="/web/20180213134618/http://www.bbc.co.uk/radio/categories"> Categories </a> </li><li class="radionav__panel-item radionav__panel-item--schedules"> <a class="radionav__schedules-link radionav-dropdown" data-panelid="schedules" href="/web/20180213134618/http://www.bbc.co.uk/radio/schedules"> Schedules </a> </li><li class="radionav__panel-item radionav__panel-item--podcasts"> <span class="radionav__podcasts-link" aria-hidden="true" style="display: none;">Podcasts</span> <a class="radionav__podcasts-link-visible" data-panelid="podcasts" href="/web/20180213134618/http://www.bbc.co.uk/podcasts"> Podcasts </a> </li><li class="radionav__panel-item radionav__panel-item--myradio"> <span class="radionav__myradio-link" aria-hidden="true" style="display: none;">My Radio</span> <a class="radionav__myradio-link-visible" data-panelid="myradio" href="/web/20180213134618/http://www.bbc.co.uk/radio/myradio"> My Radio </a> </li> </ul> </nav> <section class="radionav__controls"> <form method="get" action="#stations-panel"> <input type="submit" class="radionav__mobile-menu" value="Mobile Menu"> </form> <button title="Exit Search" type="button" class="radionav__exit-search radionav-none" value="Exit Navigation"> Exit Search </button> </section> <form class="radionav__search" method="get" action="https://web.archive.org/web/20180213134618/https://search.bbc.co.uk/search"> <input class="radionav__search-bar" name="q" maxlength="128" type="text" autocomplete="off" placeholder="Search"/> <input type="hidden" name="scope" value="iplayer:radio"/> <label for="radionav__search-bar" class="radionav-none">Search</label> <input title="Clear Search Text" class="radionav__clear-search radionav-none" type="button" value="Clear Text"/> <input title="Submit Search" class="radionav__submit-search" type="submit" value="Submit Search"/> </form> </section> </div> <div class="radionav-overlay"> <section class="radionav-overlay__wrap"> <div class="radionav-overlay__history"> <div class="b-g-m"> <div class="radionav-results radionav-results--history"></div> </div> </div> <div class="b-g-m"> <div class="radionav-overlay__results"> <div class="radionav-results radionav-results--episodes radionav-result-divider"></div> <div class="radionav-results radionav-results--programmes radionav-result-divider"></div> <div class="radionav-results radionav-results--networks radionav-result-divider"></div> <div class="radionav-results radionav-results--categories radionav-result-divider"></div> <div class="radionav-results radionav-results--visited radionav-result-divider"></div> </div> </div> </section> </div> </section> <section class="radionav-drawer"></section> <section class="radionav-drawer-group"> <span class="radionav-drawer__title top b-g-m">Stations</span> <div id="stations-panel" class="radionav-drawer__panel radionav-drawer__stations-panel b-g-m"> <ul class="radionav-drawer__stations-list" role="list"> <li class="stations--bbc_radio_one" data-networkid="radio1"> <a href="/web/20180213134618/http://www.bbc.co.uk/radio1" class="link-radio1" aria-label="Radio 1" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_one_filled.svg" role="link" alt="Radio 1"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_one_alt_colour.svg" role="link" alt="Radio 1"> <noscript>Radio 1</noscript> </a> </li> <li class="stations--bbc_1xtra" data-networkid="1xtra"> <a href="/web/20180213134618/http://www.bbc.co.uk/1xtra" class="link-1xtra" aria-label="Radio 1Xtra" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_1xtra_filled.svg" role="link" alt="Radio 1Xtra"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_1xtra_alt_colour.svg" role="link" alt="Radio 1Xtra"> <noscript>Radio 1Xtra</noscript> </a> </li> <li class="stations--bbc_radio_two" data-networkid="radio2"> <a href="/web/20180213134618/http://www.bbc.co.uk/radio2" class="link-radio2" aria-label="Radio 2" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_two_filled.svg" role="link" alt="Radio 2"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_two_alt_colour.svg" role="link" alt="Radio 2"> <noscript>Radio 2</noscript> </a> </li> <li class="stations--bbc_radio_three" data-networkid="radio3"> <a href="/web/20180213134618/http://www.bbc.co.uk/radio3" class="link-radio3" aria-label="Radio 3" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_three_filled.svg" role="link" alt="Radio 3"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_three_alt_colour.svg" role="link" alt="Radio 3"> <noscript>Radio 3</noscript> </a> </li> <li class="stations--bbc_radio_four" data-networkid="radio4"> <a href="/web/20180213134618/http://www.bbc.co.uk/radio4" class="link-radio4" aria-label="Radio 4" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_fourfm_filled.svg" role="link" alt="Radio 4"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_fourfm_alt_colour.svg" role="link" alt="Radio 4"> <noscript>Radio 4</noscript> </a> </li> <li class="stations--bbc_radio_four_extra" data-networkid="radio4extra"> <a href="/web/20180213134618/http://www.bbc.co.uk/radio4extra" class="link-radio4extra" aria-label="Radio 4 Extra" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_four_extra_filled.svg" role="link" alt="Radio 4 Extra"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_four_extra_alt_colour.svg" role="link" alt="Radio 4 Extra"> <noscript>Radio 4 Extra</noscript> </a> </li> <li class="stations--bbc_radio_five_live" data-networkid="5live"> <a href="/web/20180213134618/http://www.bbc.co.uk/5live" class="link-5live" aria-label="Radio 5 live" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_five_live_filled.svg" role="link" alt="Radio 5 live"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_five_live_alt_colour.svg" role="link" alt="Radio 5 live"> <noscript>Radio 5 live</noscript> </a> </li> <li class="stations--bbc_radio_five_live_sports_extra" data-networkid="5livesportsextra"> <a href="/web/20180213134618/http://www.bbc.co.uk/5livesportsextra" class="link-5livesportsextra" aria-label="Radio 5 live sports extra" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_five_live_sports_extra_filled.svg" role="link" alt="Radio 5 live sports extra"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_five_live_sports_extra_alt_colour.svg" role="link" alt="Radio 5 live sports extra"> <noscript>Radio 5 live sports extra</noscript> </a> </li> <li class="stations--bbc_6music" data-networkid="6music"> <a href="/web/20180213134618/http://www.bbc.co.uk/6music" class="link-6music" aria-label="Radio 6 Music" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_6music_filled.svg" role="link" alt="Radio 6 Music"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_6music_alt_colour.svg" role="link" alt="Radio 6 Music"> <noscript>Radio 6 Music</noscript> </a> </li> <li class="stations--bbc_asian_network" data-networkid="asiannetwork"> <a href="/web/20180213134618/http://www.bbc.co.uk/asiannetwork" class="link-asiannetwork" aria-label="Asian Network" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_asian_network_filled.svg" role="link" alt="Asian Network"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_asian_network_alt_colour.svg" role="link" alt="Asian Network"> <noscript>Asian Network</noscript> </a> </li> <li class="stations--bbc_world_service" data-networkid="worldserviceradio"> <a href="/web/20180213134618/http://www.bbc.co.uk/worldserviceradio" class="link-worldserviceradio" aria-label="World Service" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_world_service_filled.svg" role="link" alt="World Service"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_world_service_alt_colour.svg" role="link" alt="World Service"> <noscript>World Service</noscript> </a> </li> <li class="stations--bbc_radio_scotland" data-networkid="radioscotland"> <a href="/web/20180213134618/http://www.bbc.co.uk/radioscotland" class="link-radioscotland" aria-label="Radio Scotland" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_scotland_fm_filled.svg" role="link" alt="Radio Scotland"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_scotland_fm_alt_colour.svg" role="link" alt="Radio Scotland"> <noscript>Radio Scotland</noscript> </a> </li> <li class="stations--bbc_radio_nan_gaidheal" data-networkid="radionangaidheal"> <a href="/web/20180213134618/http://www.bbc.co.uk/radionangaidheal" class="link-radionangaidheal" aria-label="Radio nan G脿idheal" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_nan_gaidheal_filled.svg" role="link" alt="Radio nan G脿idheal"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_nan_gaidheal_alt_colour.svg" role="link" alt="Radio nan G脿idheal"> <noscript>Radio nan G脿idheal</noscript> </a> </li> <li class="stations--bbc_radio_ulster" data-networkid="radioulster"> <a href="/web/20180213134618/http://www.bbc.co.uk/radioulster" class="link-radioulster" aria-label="Radio Ulster" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_ulster_filled.svg" role="link" alt="Radio Ulster"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_ulster_alt_colour.svg" role="link" alt="Radio Ulster"> <noscript>Radio Ulster</noscript> </a> </li> <li class="stations--bbc_radio_foyle" data-networkid="radiofoyle"> <a href="/web/20180213134618/http://www.bbc.co.uk/radiofoyle" class="link-radiofoyle" aria-label="Radio Foyle" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_foyle_filled.svg" role="link" alt="Radio Foyle"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_foyle_alt_colour.svg" role="link" alt="Radio Foyle"> <noscript>Radio Foyle</noscript> </a> </li> <li class="stations--bbc_radio_wales" data-networkid="radiowales"> <a href="/web/20180213134618/http://www.bbc.co.uk/radiowales" class="link-radiowales" aria-label="Radio Wales" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_wales_fm_filled.svg" role="link" alt="Radio Wales"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_wales_fm_alt_colour.svg" role="link" alt="Radio Wales"> <noscript>Radio Wales</noscript> </a> </li> <li class="stations--bbc_radio_cymru" data-networkid="radiocymru"> <a href="/web/20180213134618/http://www.bbc.co.uk/radiocymru" class="link-radiocymru" aria-label="Radio Cymru" role="link"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_cymru_filled.svg" role="link" alt="Radio Cymru"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_cymru_alt_colour.svg" role="link" alt="Radio Cymru"> <noscript>Radio Cymru</noscript> </a> </li> <li class="stations--localradio"> <a href="/web/20180213134618/http://www.bbc.co.uk/radio/stations" class="link-localradio" aria-label="Local Radio"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/local/local_white.svg" alt="Local Radio"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" role="link" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/local/local_colour.svg" alt="Local Radio"> <noscript>Local Radio</noscript> </a> </li> </ul> <div class="radionav-fade--left"></div> <div class="radionav-fade--right"></div> <input type="button" class="hide-text radionav-arrow radionav-arrow--left" aria-label="Move backward through list of stations" value="bbc-a11y tests"/> <input type="button" class="hide-text radionav-arrow radionav-arrow--right" aria-label="Move forward through list of stations" value="bbc-a11y tests"/> </div> <span class="radionav-drawer__title b-g-m">Categories</span> <div id="categories-panel" class="radionav-drawer__panel radionav-drawer__categories-panel b-g-m"> <ul class="radionav-drawer__categories-list"> <li class="radionav-category radionav-category--childrens" data-category="Children's"><a href="/web/20180213134618/http://www.bbc.co.uk/radio/categories/childrens">Children's</a></li><li class="radionav-category radionav-category--comedy" data-category="Comedy"><a href="/web/20180213134618/http://www.bbc.co.uk/radio/categories/comedy">Comedy</a></li><li class="radionav-category radionav-category--documentaries" data-category="Documentaries"><a href="/web/20180213134618/http://www.bbc.co.uk/radio/categories/documentaries">Documentaries</a></li><li class="radionav-category radionav-category--drama" data-category="Drama"><a href="/web/20180213134618/http://www.bbc.co.uk/radio/categories/drama">Drama</a></li><li class="radionav-category radionav-category--entertainment" data-category="Entertainment"><a href="/web/20180213134618/http://www.bbc.co.uk/radio/categories/entertainment">Entertainment</a></li><li class="radionav-category radionav-category--factual" data-category="Factual"><a href="/web/20180213134618/http://www.bbc.co.uk/radio/categories/factual">Factual</a></li><li class="radionav-category radionav-category--learning" data-category="Learning"><a href="/web/20180213134618/http://www.bbc.co.uk/radio/categories/learning">Learning</a></li><li class="radionav-category radionav-category--music" data-category="Music"><a href="/web/20180213134618/http://www.bbc.co.uk/radio/categories/music">Music</a></li><li class="radionav-category radionav-category--news" data-category="News"><a href="/web/20180213134618/http://www.bbc.co.uk/radio/categories/news">News</a></li><li class="radionav-category radionav-category--performancesandevents" data-category="Performances & Events"><a href="/web/20180213134618/http://www.bbc.co.uk/radio/categories/performancesandevents">Performances & Events</a></li><li class="radionav-category radionav-category--religionandethics" data-category="Religion & Ethics"><a href="/web/20180213134618/http://www.bbc.co.uk/radio/categories/religionandethics">Religion & Ethics</a></li><li class="radionav-category radionav-category--sport" data-category="Sport"><a href="/web/20180213134618/http://www.bbc.co.uk/radio/categories/sport">Sport</a></li><li class="radionav-category radionav-category--all-categories" data-category="All Categories"><a class="radionav-category__all-link" href="/web/20180213134618/http://www.bbc.co.uk/radio/categories">All Categories</a></li></ul> <div class="radionav-fade--left"></div> <div class="radionav-fade--right"></div> <input type="button" class="hide-text radionav-arrow radionav-arrow--left" aria-label="Move backward through list of categories" value="bbc-a11y tests"/> <input type="button" class="hide-text radionav-arrow radionav-arrow--right" aria-label="Move forward through list of categories" value="bbc-a11y tests"/> </div> <span class="radionav-drawer__title b-g-m">Schedules</span> <div id="schedules-panel" class="radionav-drawer__panel radionav-drawer__schedules-panel b-g-m"> <ul class="radionav-drawer__stations-list" role="list"> <li class="schedules--bbc_radio_one" data-networkid="radio1"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl86#on-now" class="link-radio1" aria-label="Radio 1"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_one_filled.svg" role="link" alt="Radio 1"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_one_alt_colour.svg" role="link" alt="Radio 1"> <noscript>Radio 1</noscript> </a> </li> <li class="schedules--bbc_1xtra" data-networkid="1xtra"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl64#on-now" class="link-1xtra" aria-label="Radio 1Xtra"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_1xtra_filled.svg" role="link" alt="Radio 1Xtra"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_1xtra_alt_colour.svg" role="link" alt="Radio 1Xtra"> <noscript>Radio 1Xtra</noscript> </a> </li> <li class="schedules--bbc_radio_two" data-networkid="radio2"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl8v#on-now" class="link-radio2" aria-label="Radio 2"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_two_filled.svg" role="link" alt="Radio 2"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_two_alt_colour.svg" role="link" alt="Radio 2"> <noscript>Radio 2</noscript> </a> </li> <li class="schedules--bbc_radio_three" data-networkid="radio3"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl8t#on-now" class="link-radio3" aria-label="Radio 3"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_three_filled.svg" role="link" alt="Radio 3"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_three_alt_colour.svg" role="link" alt="Radio 3"> <noscript>Radio 3</noscript> </a> </li> <li class="schedules--bbc_radio_four" data-networkid="radio4"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl7j#on-now" class="link-radio4" aria-label="Radio 4"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_fourfm_filled.svg" role="link" alt="Radio 4"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_fourfm_alt_colour.svg" role="link" alt="Radio 4"> <noscript>Radio 4</noscript> </a> </li> <li class="schedules--bbc_radio_four_extra" data-networkid="radio4extra"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl7l#on-now" class="link-radio4extra" aria-label="Radio 4 Extra"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_four_extra_filled.svg" role="link" alt="Radio 4 Extra"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_four_extra_alt_colour.svg" role="link" alt="Radio 4 Extra"> <noscript>Radio 4 Extra</noscript> </a> </li> <li class="schedules--bbc_radio_five_live" data-networkid="5live"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl7g#on-now" class="link-5live" aria-label="Radio 5 live"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_five_live_filled.svg" role="link" alt="Radio 5 live"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_five_live_alt_colour.svg" role="link" alt="Radio 5 live"> <noscript>Radio 5 live</noscript> </a> </li> <li class="schedules--bbc_radio_five_live_sports_extra" data-networkid="5livesportsextra"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl7h#on-now" class="link-5livesportsextra" aria-label="Radio 5 live sports extra"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_five_live_sports_extra_filled.svg" role="link" alt="Radio 5 live sports extra"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_radio_five_live_sports_extra_alt_colour.svg" role="link" alt="Radio 5 live sports extra"> <noscript>Radio 5 live sports extra</noscript> </a> </li> <li class="schedules--bbc_6music" data-networkid="6music"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl65#on-now" class="link-6music" aria-label="Radio 6 Music"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_6music_filled.svg" role="link" alt="Radio 6 Music"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_6music_alt_colour.svg" role="link" alt="Radio 6 Music"> <noscript>Radio 6 Music</noscript> </a> </li> <li class="schedules--bbc_asian_network" data-networkid="asiannetwork"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl68#on-now" class="link-asiannetwork" aria-label="Asian Network"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_asian_network_filled.svg" role="link" alt="Asian Network"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_asian_network_alt_colour.svg" role="link" alt="Asian Network"> <noscript>Asian Network</noscript> </a> </li> <li class="schedules--bbc_world_service" data-networkid="worldserviceradio"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl9p#on-now" class="link-worldserviceradio" aria-label="World Service"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_world_service_filled.svg" role="link" alt="World Service"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/national/bbc_world_service_alt_colour.svg" role="link" alt="World Service"> <noscript>World Service</noscript> </a> </li> <li class="schedules--bbc_radio_scotland" data-networkid="radioscotland"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl8d#on-now" class="link-radioscotland" aria-label="Radio Scotland"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_scotland_fm_filled.svg" role="link" alt="Radio Scotland"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_scotland_fm_alt_colour.svg" role="link" alt="Radio Scotland"> <noscript>Radio Scotland</noscript> </a> </li> <li class="schedules--bbc_radio_nan_gaidheal" data-networkid="radionangaidheal"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl81#on-now" class="link-radionangaidheal" aria-label="Radio nan G脿idheal"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_nan_gaidheal_filled.svg" role="link" alt="Radio nan G脿idheal"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_nan_gaidheal_alt_colour.svg" role="link" alt="Radio nan G脿idheal"> <noscript>Radio nan G脿idheal</noscript> </a> </li> <li class="schedules--bbc_radio_ulster" data-networkid="radioulster"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl8w#on-now" class="link-radioulster" aria-label="Radio Ulster"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_ulster_filled.svg" role="link" alt="Radio Ulster"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_ulster_alt_colour.svg" role="link" alt="Radio Ulster"> <noscript>Radio Ulster</noscript> </a> </li> <li class="schedules--bbc_radio_foyle" data-networkid="radiofoyle"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl7m#on-now" class="link-radiofoyle" aria-label="Radio Foyle"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_foyle_filled.svg" role="link" alt="Radio Foyle"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_foyle_alt_colour.svg" role="link" alt="Radio Foyle"> <noscript>Radio Foyle</noscript> </a> </li> <li class="schedules--bbc_radio_wales" data-networkid="radiowales"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl8y#on-now" class="link-radiowales" aria-label="Radio Wales"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_wales_fm_filled.svg" role="link" alt="Radio Wales"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_wales_fm_alt_colour.svg" role="link" alt="Radio Wales"> <noscript>Radio Wales</noscript> </a> </li> <li class="schedules--bbc_radio_cymru" data-networkid="radiocymru"> <a href="/web/20180213134618/http://www.bbc.co.uk/schedules/p00fzl7b#on-now" class="link-radiocymru" aria-label="Radio Cymru"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_cymru_filled.svg" role="link" alt="Radio Cymru"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/nation/bbc_radio_cymru_alt_colour.svg" role="link" alt="Radio Cymru"> <noscript>Radio Cymru</noscript> </a> </li> <li class="schedules--localradio" data-networkid="localRadio"> <a href="/web/20180213134618/http://www.bbc.co.uk/radio/schedules" class="link-localradio" aria-label="Local Radio"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/local/local_white.svg" alt="Local Radio"> <img src="/web/20180213134618im_/http://www.bbc.co.uk/programmes/articles/JRvwx2hZQ1m948wVJvjrfR/pick-up-a-puzzle-7-scintillating-brainteasers-to-have-as-a-hobby?intc_type=promo&intc_location=news&intc_campaign=brainteasers&intc_linkname=radio4_fac_article" class="network-logo-focus" data-src="https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/local/local_colour.svg" alt="Local Radio"> <noscript>Local Radio</noscript> </a> </li> </ul> <div class="radionav-fade--left"></div> <div class="radionav-fade--right"></div> <input type="button" class="hide-text radionav-arrow radionav-arrow--left" aria-label="Move backward through list of schedules" value="bbc-a11y tests"/> <input type="button" class="hide-text radionav-arrow radionav-arrow--right" aria-label="Move forward through list of schedules" value="bbc-a11y tests"/> </div> <span class="radionav-drawer__title b-g-m">Podcasts</span> <div id="podcasts-panel" class="radionav-drawer__panel radionav-drawer__podcasts-panel b-g-m"> <div class="radionav-fade--left"></div> <div class="radionav-fade--right"></div> <input type="hidden" class="hide-text radionav-arrow radionav-arrow--left" aria-label="" value="bbc-a11y tests"/> <input type="hidden" class="hide-text radionav-arrow radionav-arrow--right" aria-label="" value="bbc-a11y tests"/> </div> <span class="radionav-drawer__title b-g-m">My Radio</span> <div id="myradio-panel" class="radionav-drawer__panel radionav-drawer__myradio-panel b-g-m"> <ul class="radionav-drawer__myradio-list"> <li class="radionav-myradio"> <a href="/web/20180213134618/http://www.bbc.co.uk/radio/myradio" class="radionav-myradio-link">Overview</a> </li> <li class="radionav-myradio"> <a href="/web/20180213134618/http://www.bbc.co.uk/radio/myradio/favourites" class="radionav-myradio-link">Listen Later</a> </li> <li class="radionav-myradio"> <a href="/web/20180213134618/http://www.bbc.co.uk/radio/myradio/following" class="radionav-myradio-link">Following</a> </li> </ul> <div class="radionav-fade--left"></div> <div class="radionav-fade--right"></div> <input type="button" class="hide-text radionav-arrow radionav-arrow--left" aria-label="Move backward through My Radio list" value="bbc-a11y tests"/> <input type="button" class="hide-text radionav-arrow radionav-arrow--right" aria-label="Move forward through My Radio list" value="bbc-a11y tests"/> </div> </section> </div> <div class="br-container__inner"> <div class="br-masthead" id="br-masthead"><div class="br-masthead__inner"> <div class="b-g-p br-masthead__main br-masthead__main--medium"> <div class="br-masthead__onairpanel" id="onairpanel-container"> <div id="programmes-oap"> <!-- OAP 1 --> <!-- OAP 3 --> <a id="programmes-oap-listen" class="programmes-oap-item popup_off" href="//web.archive.org/web/20180213134618/http://www.bbc.co.uk/radio/player/bbc_radio_fourfm"> <img src="https://web.archive.org/web/20180213134618im_/https://static.bbci.co.uk/radioonairpanel/0.2.6.20180131153656/img/sound-fs8.png" alt=""/> <span class="bbc_radio_fourfm">Listen</span> </a> <div id="programmes-oap-main" class="programmes-oap-item"> <!-- OAP 5 --> <div id="programmes-oap-now"><a href="/web/20180213134618/http://www.bbc.co.uk/radio"></a></div> <div id="programmes-oap-info"> <div id="programmes-oap-info-scroll">13/02/2018</div> </div> </div> <!-- OAP end --> </div> <script> window.iprConfig = window.iprConfig || { products: {} }; window.iprConfig.products['OnAirPanel'] = { env: 'live', version: '0.2.6.20180131153656' }; </script> </div> <a href="/web/20180213134618/http://www.bbc.co.uk/radio4" class="br-masthead__masterbrand service-brand-logo-master service-brand-logo-master--bbc_radio_four">BBC Radio 4</a> <div class="br-masthead__title"> <a href="/web/20180213134618/http://www.bbc.co.uk/programmes/p025ht2f"> <div class="br-masthead-logo--small br-masthead-logo--medium br-masthead-logo--large">Radio 4 in Four</div> </a> </div> </div> <div class="b-g-p"><div id="br-nav-programme" class="br-nav br-box-highlight br-highlight-bg-onbg080"><ul class="br-nav__list"><li class="br-nav__item"><a class="br-nav__link" href="/web/20180213134618/http://www.bbc.co.uk/programmes/p025ht2f" data-linktrack="nav_home">Home</a></li><li class="br-nav__item"><a class="br-nav__link" href="/web/20180213134618/http://www.bbc.co.uk/programmes/p025ht2f/clips" data-linktrack="nav_intelligenttimewasting">Intelligent Time Wasting</a></li><li class="br-nav__item"><a class="br-nav__link" href="/web/20180213134618/http://www.bbc.co.uk/programmes/articles/3xvMJ3QVHl4fx6tCtrcwHCZ/4-minute-reads" data-linktrack="nav_4minutereads">4 Minute Reads</a></li><li class="br-nav__item"><a class="br-nav__link" href="/web/20180213134618/http://www.bbc.co.uk/programmes/p02h15xg" data-linktrack="nav_mostpopular">Most Popular</a></li><li class="br-nav__item"><a class="br-nav__link" href="/web/20180213134618/http://www.bbc.co.uk/programmes/articles/4hcCynsSWWNT465bJ1qgTVg/short-videos-from-radio-4-in-four" data-linktrack="nav_watchin4">Watch in 4</a></li><li class="br-nav__item"><a class="br-nav__link" href="/web/20180213134618/http://www.bbc.co.uk/programmes/articles/PvDKT4L0w6FW12HTbRCBcd/radio-4-quizzes" data-linktrack="nav_quizzes">Quizzes</a></li></ul></div></div><script type="text/javascript"> define("branding-responsive-nav",[],function(){var e=function(e){this.setOptions(e)};return e.prototype={options:{},setOptions:function(e){var t={more_link_text:e&&e.more_link_text?e.more_link_text:"More"};this.options=t},getOptions:function(){return this.options},init:function(){function e(){var e=t.getWindowWidth(),n=t.getWindowHeight();(e!=i||n!=o)&&null!==t.local_nav_bar&&(t.processingNavigation=!1,t.processNavigation()),i=e,o=n}var t=this,n=null,i=this.getWindowWidth(),o=this.getWindowHeight();t.setupNavigation(),this.addListener(window,"resize",function(){clearTimeout(n),n=setTimeout(e,300)})},getWindowWidth:function(){var e=0;return"number"==typeof window.innerWidth?e=window.innerWidth:document.documentElement&&document.documentElement.clientWidth?e=document.documentElement.clientWidth:document.body&&document.body.clientWidth&&(e=document.body.clientWidth),e},getWindowHeight:function(){var e=0;return"number"==typeof window.innerHeight?e=window.innerHeight:document.documentElement&&document.documentElement.clientHeight?e=document.documentElement.clientHeight:document.body&&document.body.clientHeight&&(e=document.body.clientHeight),e},addListener:function(e,t,n){e.addEventListener?e.addEventListener(t,n,!1):e.attachEvent?e.attachEvent("on"+t,n):e["on"+t]=n},setupNavigation:function(){if(this.local_nav_bar=document.getElementById("br-nav-programme"),null!==this.local_nav_bar){var e=document.createElement("button");e.className="br-nav__morelink br-box-highlight",e.setAttribute("data-linktrack","nav_more");var t=document.createTextNode(this.getOptions().more_link_text);e.appendChild(t),e.id="more-link",this.local_nav_bar.insertBefore(e,this.local_nav_bar.firstChild);var n=document.createElement("ul");n.id="more-list",n.className="br-nav__more br-nav__list",this.local_nav_bar.appendChild(n),this.addListener(e,"click",function(){-1!==e.className.indexOf("open")?(e.className=e.className.replace("open",""),n.className=n.className.replace("open","")):(e.className+=" open",n.className+=" open")}),t=null,this.processNavigation()}},processingNavigation:!1,processNavigation:function(){if(null!==this.local_nav_bar){var e=document.getElementById("more-link"),t=this.local_nav_bar.getElementsByTagName("ul");t=t[0];var n=t.getElementsByTagName("li"),i=n[0];this.processingNavigation=!0;var o=document.getElementById("more-list");if(null!==o)for(;o.hasChildNodes();)t.appendChild(o.firstChild);if(!this._navIsTooLong(t,i))return e.className=e.className.replace("visible",""),void(e=t=n=i=o=null);for(e.className=e.className.replace("visible",""),e.className+=" visible";this._navIsTooLong(t,i)&&this.processingNavigation;)this._moveLastNavItem();e=t=n=i=o=null}},_moveLastNavItem:function(){var e=this.local_nav_bar.getElementsByTagName("ul")[0],t=document.getElementById("more-list");t.insertBefore(e.lastChild,t.firstChild),e=nav_items=last_item=t=null},_navIsTooLong:function(e,t){var n=e.getElementsByTagName("li"),i=n.length>1&&e.offsetHeight>t.scrollHeight;return n=null,i}},e}); /*<![CDATA[*/ require(['branding-responsive-nav'],function(responsiveNav){ var nav = new responsiveNav({ 'more_link_text' : 'More' }); nav.init(); }); /*]]>*/ </script> </div></div> <div class="text-base" id="programmes-main-content" role="main"> <!-- isite guid: 1ef22f91-60f5-4b4f-9ccf-718ac746f7c0 --> <div class="prog-layout"><div class="programmes-page"> <div class="grid-wrapper"><div class="grid "><div class="grid__inner"><div class="br-box-page prog-box"><div class="prog-layout__primary island--vertical"> <h1>Pick up a puzzle: 7 scintillating brainteasers to have as a hobby</h1> </div> <div class="component component--box component--box-flushbody-vertical component--box--primary"><div class="component__body br-box-page"> <img class="rsp-img" src="https://web.archive.org/web/20180213134618im_/https://ichef.bbci.co.uk/images/ic/256xn/p05w2f61.jpg" data-img-src-304="https://web.archive.org/web/20180213134618/https://ichef.bbci.co.uk/images/ic/336xn/p05w2f61.jpg" data-img-src-440="https://web.archive.org/web/20180213134618/https://ichef.bbci.co.uk/images/ic/480xn/p05w2f61.jpg" data-img-src-576="https://web.archive.org/web/20180213134618/https://ichef.bbci.co.uk/images/ic/640xn/p05w2f61.jpg" data-img-src-712="https://web.archive.org/web/20180213134618/https://ichef.bbci.co.uk/images/ic/800xn/p05w2f61.jpg" data-img-src-848="https://web.archive.org/web/20180213134618/https://ichef.bbci.co.uk/images/ic/976xn/p05w2f61.jpg"/> </div> </div> <div class="component component--box component--box-flushbody-vertical component--box--primary"><div class="component__body br-box-page"><div class="text--prose"><div class="bpw-one-half bpw-pull--right-spaced"></div> <h4>Puzzles: from the Ancient Egyptian maze to the Sunday newspaper’s Samurai Sudoku, they are popular around the world, across every culture – and have been for millennia. Radio 4’s <a href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/programmes/b09ntd0m" target="_blank">Two Thousand Years of Puzzling</a> explores the long and endlessly satisfying human appetite for the setting and solving of puzzles.</h4> <h4>What’s your favourite puzzle? If you’re looking for a new hobby as we start the year then try wrapping your head around one of these compelling, mind-bending, brainteasers.</h4></div></div> </div> <div class="component component--box component--box-flushbody-vertical component--box--primary"><div class="component__header br-box-page"><h2>1. The Maze</h2></div><div class="component__body br-box-page"><div class="text--prose"><p>Could the maze – a confusing network of winding pathways, with one or more blind alley, through which one has to find a way – be the oldest type of puzzle? Although little remains of the structure today, an Ancient Egyptian maze near Crocodilopolis dates back to around 700 BC.</p><div class="bpw-one-half bpw-pull--right-spaced"><div class="component"><img alt="" class="rsp-img" src="https://web.archive.org/web/20180213134618im_/https://ichef.bbci.co.uk/images/ic/256xn/p05w2xhk.jpg" data-img-src-304="https://web.archive.org/web/20180213134618/https://ichef.bbci.co.uk/images/ic/336xn/p05w2xhk.jpg" data-img-src-440="https://web.archive.org/web/20180213134618/https://ichef.bbci.co.uk/images/ic/480xn/p05w2xhk.jpg"/><div class="centi island--squashed br-box-highlight">Always start with the corner pieces. Oh hang on...</div> </div></div> <p>The oldest hedge maze in the UK was designed in 1690 for William of Orange, although there is evidence that it replaced an earlier version, perhaps designed for Henry VIII. These days, finger mazes appear in puzzle books and newspapers, and even on the walls of the London Underground, but if you really want to test yourself head to Ningbo in China. The Butterfly Maze – the largest permanent hedge maze in the world – covers 33,564.67 m² and has a total path length of 8.38 km. A-mazing!</p><h2>2. The Sudoku</h2> <p>A Sudoku is a logic puzzle in which the objective is to fill a 9 by 9 grid with digits so that each column, row, and 3 by 3 sub-grid contains all of the numbers from 1 to 9.</p><p>Each puzzle has a single solution and, let’s face it, they're addictive. We think of the Sudoku as a modern phenomenon, exploding in popularity in recent years (travel by train and you’re bound to see someone frowning at their paper, pencil in hand) but, in fact, French newspapers featured variations of the puzzle in the 19th century – until they disappeared around the time of World War I.</p><p>The modern version of the puzzle became popular when a Japanese company introduced it, branding it the Sudoku, meaning ‘single number’. It appeared in The Times newspaper in 2004 and looks set to stick around…</p></div></div> </div> <div class="component component--box component--box-flushbody-vertical component--box--primary"><div class="component__header br-box-page"><h2>3. The Jigsaw</h2></div><div class="component__body br-box-page"><div class="text--prose"><div class="bpw-one-half bpw-pull--right-spaced"></div> <p>The origins of the jigsaw – a tiling puzzle that involves assembling interlocking and tessellating pieces to create a picture – date back to the 1760s. John Spilsbury, a British cartographer and engraver, is credited as the inventor: he pasted maps onto wood, cut them into small pieces and called them ‘Dissected Maps’. These days, jigsaws are produced for educational purposes, as well as for fun, as they’re seen to help with hand-eye coordination, fine motor skills, shape recognition and memory. All important skills when undertaking modern variations like spherical, 3D and double-sided jigsaws! The world's largest commercially available puzzle shows 10 scenes from Disney works, has 40,320 pieces, and measures 680 by 192 cm when assembled. Giant table not included.</p></div></div> </div> <div class="component component--box component--box-flushbody-vertical component--box--primary"><div class="component__header br-box-page"><h2>4. The Crossword</h2></div><div class="component__body br-box-page"><div class="text--prose"><p>Are you a cruciverbalist? If you’re a bit of a whizz at creating or solving crosswords then the answer is yes! The crossword is a black and white word puzzle, in the form of a square grid, which one fills with interlinking words by answering clues.</p><div class="bpw-one-half bpw-pull--right-spaced"><div class="component"><img alt="" class="rsp-img" src="https://web.archive.org/web/20180213134618im_/https://ichef.bbci.co.uk/images/ic/256xn/p05w2cvt.jpg" data-img-src-304="https://web.archive.org/web/20180213134618/https://ichef.bbci.co.uk/images/ic/336xn/p05w2cvt.jpg" data-img-src-440="https://web.archive.org/web/20180213134618/https://ichef.bbci.co.uk/images/ic/480xn/p05w2cvt.jpg"/><div class="centi island--squashed br-box-highlight">12 down, nine letters, type of puzzle...</div> </div></div> <p>The first crossword puzzle as we know it was published in 1913, but word square puzzles were found in the ruins of Pompeii! In the 1930s, crosswords inspired the creation of the board game Scrabble, and during the Second World War crosswords were banned in Paris in case they were used to pass coded messages to the enemy.</p><h2>5. The Cryptic Crossword</h2> <p>Think crosswords are hard? Let’s ramp it up a level. With cryptic crosswords the clues are more obscure, indirectly indicating what the solutions could be.</p><p>For example: an anagram clue tells you some words in the clue have to be rearranged; a charade clue is when one part is added to another to get the answer; the container clue is a set of letters or a short word put inside another word; reversals are a cryptic device where a word or a part of a word is reversed to get to the answer; and in a hidden word clue the answer is hidden in plain sight.</p><p>Confused? We are. But however nonsensical cryptic crossword clues seem, they all conform to a set of rules. Learn these rules and you will conquer!</p></div></div> </div> <div class="component component--box component--box-flushbody-vertical component--box--primary"><div class="component__header br-box-page"><h2>6. The Riddle </h2></div><div class="component__body br-box-page"><div class="text--prose"><div class="bpw-one-half bpw-pull--right-spaced"></div> <p>What can travel around the world while staying in a corner? Have you worked it out? The answer is… a stamp! A riddle is a question or statement intentionally phrased so as to require intelligence and reasoning to reach an answer; an ingenious and creative word puzzle. They were a prominent literary form in the ancient and medieval world, and appear extensively in written records – in Babylonian school texts, Sanskrit poetry, medieval monastic manuscripts, and as preserved graffiti in the Basilica at Pompeii. Perhaps the most famous riddle of all belongs to the Sphinx of Greek mythology who sat outside Thebes asking passers-by, ‘What goes on four legs in the morning, on two legs at noon, and on three legs in the evening?’ The answer? Man: he crawls as a baby, walks upright throughout his life, and uses a cane in old age. Luckily for Oedipus he solved the riddle, and avoided a sticky end.</p></div></div> </div> <div class="component component--box component--box-flushbody-vertical component--box--primary"><div class="component__header br-box-page"><h2>7. The Word Ladder</h2></div><div class="component__body br-box-page"><div class="text--prose"><div class="bpw-one-half bpw-pull--right-spaced"></div> <p>He didn’t just invent the Jabberwock and the Jubjub bird – author Lewis Carroll is also the brains behind the word ladder. The puzzle – also referred to as doublets, word-links, paragrams, laddergrams, or word golf – begins with two words, and to solve the puzzle one must find a chain of other words to link the two, in which two adjacent words differ by only one letter. For example, if your first word is wine, and your last word beer, the words in between could be wins, wits, wets, bets, and bees. Lewis Carroll claims that he invented the game on Christmas day in 1877, first mentioning it in his diary the following year. In 1879 he published a series of the puzzles and solutions in Vanity Fair and later it was made into a book. Now his creation is a stalwart of puzzle books and newspapers the world over.</p></div></div> </div> <div class="component component--box component--box-flushbody-vertical component--box--primary"><div class="component__body br-box-page"><div class="text--prose"><div class="bpw-one-half bpw-pull--right-spaced"></div> <h3>To discover the history of your favourite puzzles, listen to <a href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/programmes/b09ntd0m" target="_blank">Two Thousand Years of Puzzling.</a></h3></div></div> </div> <div class="component component--box component--box-flushbody-vertical component--box--primary"><div class="component__header br-box-page"><h2>More Puzzles From Radio 4</h2></div><div class="component__body br-box-page"><ul class="grid-wrapper bpb1-highlight-box-wrapper--grid bpw-highlight-box-wrapper--grid"><li class="grid bpb1-one-half bpw-one-half bpw2-one-third bpe-one-quarter"><div class="grid__inner"> <div id="promo_5a82ec2db416a" class="promotion block-link highlight-box--list-borderless bpb1-promotion--grid bpb1-highlight-box--grid bpw-promotion--grid bpw-highlight-box--grid br-keyline br-blocklink-page br-page-linkhover-onbg015--hover"> <div class="promotion__img one-whole"><div class="rsp-img lazy-img" data-img-blank="http://static.bbci.co.uk/programmes/2.277.0.173/img/blank.png" data-img-src-68="https://ichef.bbci.co.uk/images/ic/160xn/p05cclq6.jpg" data-img-src-176="https://ichef.bbci.co.uk/images/ic/192xn/p05cclq6.jpg" data-img-src-208="https://ichef.bbci.co.uk/images/ic/256xn/p05cclq6.jpg" data-img-src-304="https://ichef.bbci.co.uk/images/ic/336xn/p05cclq6.jpg" data-img-src-440="https://ichef.bbci.co.uk/images/ic/480xn/p05cclq6.jpg" data-img-src-576="https://ichef.bbci.co.uk/images/ic/640xn/p05cclq6.jpg"></div> </div> <div class="promotion__body br-box-page"><div class="promotion__body__inner br-page-linkhover-onbg015--childhover"> <h4 class="promotion__titles"> <span class="promotion__title"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/programmes/articles/4wZKd0swMSbkqQs4fdj4mKq/take-this-far-from-simple-quiz-and-find-out-if-youre-a-polymath" class="br-blocklink__link promotion__link" data-linktrack="promo_title">Are you a polymath?</a> </span> </h4> <p class="promotion__synopsis centi text--subtle"> <span>If you don't know what a polymath is then you're almost certainly not one.</span> </p> </div></div> <a class="block-link__overlay-link promotion__link" href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/programmes/articles/4wZKd0swMSbkqQs4fdj4mKq/take-this-far-from-simple-quiz-and-find-out-if-youre-a-polymath" aria-hidden="true" tabindex="-1" data-linktrack="promo_image">Are you a polymath?</a> </div> <script>require(["jquery-1.9", "istats-1"],function($, istats) {$(function() {istats.track("internal", { region: $(".promotion__related-links li a"),linkLocation: "programmes_promo_relatedlink"});});});</script> </div></li><li class="grid bpb1-one-half bpw-one-half bpw2-one-third bpe-one-quarter"><div class="grid__inner"> <div id="promo_5a82ec2db4b15" class="promotion block-link highlight-box--list-borderless bpb1-promotion--grid bpb1-highlight-box--grid bpw-promotion--grid bpw-highlight-box--grid br-keyline br-blocklink-page br-page-linkhover-onbg015--hover"> <div class="promotion__img one-whole"><div class="rsp-img lazy-img" data-img-blank="http://static.bbci.co.uk/programmes/2.277.0.173/img/blank.png" data-img-src-68="https://ichef.bbci.co.uk/images/ic/160xn/p05ty0bt.jpg" data-img-src-176="https://ichef.bbci.co.uk/images/ic/192xn/p05ty0bt.jpg" data-img-src-208="https://ichef.bbci.co.uk/images/ic/256xn/p05ty0bt.jpg" data-img-src-304="https://ichef.bbci.co.uk/images/ic/336xn/p05ty0bt.jpg" data-img-src-440="https://ichef.bbci.co.uk/images/ic/480xn/p05ty0bt.jpg" data-img-src-576="https://ichef.bbci.co.uk/images/ic/640xn/p05ty0bt.jpg"></div> </div> <div class="promotion__body br-box-page"><div class="promotion__body__inner br-page-linkhover-onbg015--childhover"> <h4 class="promotion__titles"> <span class="promotion__title"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/programmes/articles/3bm0WlMGddBsTMVKqgQFbHQ/the-most-important-quiz-of-the-day" class="br-blocklink__link promotion__link" data-linktrack="promo_title">The Most Important Quiz of the Day</a> </span> </h4> <p class="promotion__synopsis centi text--subtle"> <span>How well do you know the most important meal of the day? Tuck into this quiz to find out. </span> </p> </div></div> <a class="block-link__overlay-link promotion__link" href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/programmes/articles/3bm0WlMGddBsTMVKqgQFbHQ/the-most-important-quiz-of-the-day" aria-hidden="true" tabindex="-1" data-linktrack="promo_image">The Most Important Quiz of the Day</a> </div> <script>require(["jquery-1.9", "istats-1"],function($, istats) {$(function() {istats.track("internal", { region: $(".promotion__related-links li a"),linkLocation: "programmes_promo_relatedlink"});});});</script> </div></li><li class="grid bpb1-one-half bpw-one-half bpw2-one-third bpe-one-quarter"><div class="grid__inner"> <div id="promo_5a82ec2db5386" class="promotion block-link highlight-box--list-borderless bpb1-promotion--grid bpb1-highlight-box--grid bpw-promotion--grid bpw-highlight-box--grid br-keyline br-blocklink-page br-page-linkhover-onbg015--hover"> <div class="promotion__img one-whole"><div class="rsp-img lazy-img" data-img-blank="http://static.bbci.co.uk/programmes/2.277.0.173/img/blank.png" data-img-src-68="https://ichef.bbci.co.uk/images/ic/160xn/p05h9z2k.jpg" data-img-src-176="https://ichef.bbci.co.uk/images/ic/192xn/p05h9z2k.jpg" data-img-src-208="https://ichef.bbci.co.uk/images/ic/256xn/p05h9z2k.jpg" data-img-src-304="https://ichef.bbci.co.uk/images/ic/336xn/p05h9z2k.jpg" data-img-src-440="https://ichef.bbci.co.uk/images/ic/480xn/p05h9z2k.jpg" data-img-src-576="https://ichef.bbci.co.uk/images/ic/640xn/p05h9z2k.jpg"></div> </div> <div class="promotion__body br-box-page"><div class="promotion__body__inner br-page-linkhover-onbg015--childhover"> <h4 class="promotion__titles"> <span class="promotion__title"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/programmes/articles/3CVsFMHRmWZrRspDYp8dpCV/are-you-a-big-film-buff" class="br-blocklink__link promotion__link" data-linktrack="promo_title">Are you a big film buff?</a> </span> </h4> <p class="promotion__synopsis centi text--subtle"> <span>Test your knowledge of the year's biggest films with this bumper quiz. </span> </p> </div></div> <a class="block-link__overlay-link promotion__link" href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/programmes/articles/3CVsFMHRmWZrRspDYp8dpCV/are-you-a-big-film-buff" aria-hidden="true" tabindex="-1" data-linktrack="promo_image">Are you a big film buff?</a> </div> <script>require(["jquery-1.9", "istats-1"],function($, istats) {$(function() {istats.track("internal", { region: $(".promotion__related-links li a"),linkLocation: "programmes_promo_relatedlink"});});});</script> </div></li><li class="grid bpb1-one-half bpw-one-half bpw2-one-third bpe-one-quarter"><div class="grid__inner"> <div id="promo_5a82ec2db5bf0" class="promotion block-link highlight-box--list-borderless bpb1-promotion--grid bpb1-highlight-box--grid bpw-promotion--grid bpw-highlight-box--grid br-keyline br-blocklink-page br-page-linkhover-onbg015--hover"> <div class="promotion__img one-whole"><div class="rsp-img lazy-img" data-img-blank="http://static.bbci.co.uk/programmes/2.277.0.173/img/blank.png" data-img-src-68="https://ichef.bbci.co.uk/images/ic/160xn/p056flbf.jpg" data-img-src-176="https://ichef.bbci.co.uk/images/ic/192xn/p056flbf.jpg" data-img-src-208="https://ichef.bbci.co.uk/images/ic/256xn/p056flbf.jpg" data-img-src-304="https://ichef.bbci.co.uk/images/ic/336xn/p056flbf.jpg" data-img-src-440="https://ichef.bbci.co.uk/images/ic/480xn/p056flbf.jpg" data-img-src-576="https://ichef.bbci.co.uk/images/ic/640xn/p056flbf.jpg"></div> </div> <div class="promotion__body br-box-page"><div class="promotion__body__inner br-page-linkhover-onbg015--childhover"> <h4 class="promotion__titles"> <span class="promotion__title"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/programmes/articles/31g7sF9zTSLwqL6VrXFXp8R/quiz-extinct-or-not" class="br-blocklink__link promotion__link" data-linktrack="promo_title">Extinct or Not? </a> </span> </h4> <p class="promotion__synopsis centi text--subtle"> <span>Which of these species have vanished?</span> </p> </div></div> <a class="block-link__overlay-link promotion__link" href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/programmes/articles/31g7sF9zTSLwqL6VrXFXp8R/quiz-extinct-or-not" aria-hidden="true" tabindex="-1" data-linktrack="promo_image">Extinct or Not? </a> </div> <script>require(["jquery-1.9", "istats-1"],function($, istats) {$(function() {istats.track("internal", { region: $(".promotion__related-links li a"),linkLocation: "programmes_promo_relatedlink"});});});</script> </div></li></ul></div> </div> </div></div></div></div></div></div> </div> <div class="br-box-subtle text-base programmes-page programmes-page--flush" id="programmes-footer"><div class="footer-wrapper br-keyline"> <div class="footer g-f-l"><div class="grid-wrapper grid-wrapper--flush"> <div class="grid bpw-one-half bpw2-five-twelfths bpe-five-twelfths"><div class="grid__inner grid__inner--flush"><div class="b-g-p"> <div class="icon-box br-box-page lazy-module lazy-module--loading--loader" data-lazyload-inc="/programmes/p025ht2f/recommendations.inc" data-lazyload-threshold="320" data-lazyload-delay="true"> <a class="icon-box__link br-box-page__link br-page-link-onbg015 br-page-linkhover-onbg015--hover" href="/web/20180213134618/http://www.bbc.co.uk/programmes/p025ht2f/recommendations"> <i class="icon-box__icon gelicon gelicon--recommend"></i> <div class="icon-box__hgroup"> <h3 class="icon-box__title gamma">You may also like</h3> </div> <p class="icon-box__note micro"> View all </p> </a> </div> </div></div></div> <div class="grid bpw-one-half bpw2-one-quarter bpe-one-third"><div class="grid__inner grid__inner--flush"><div class="footer__similar b-g-p component"> <h2>Similar programmes</h2> <div> <h3 class="inline micro">By genre:</h3> <ul class="list-unstyled micro"> <li class=""> <a href="/web/20180213134618/http://www.bbc.co.uk/programmes/genres/comedy">Comedy</a> </li> <li class=""> <a href="/web/20180213134618/http://www.bbc.co.uk/programmes/genres/drama">Drama</a> </li> <li class=""> <a href="/web/20180213134618/http://www.bbc.co.uk/programmes/genres/entertainment">Entertainment</a> </li> <li class=""> <a href="/web/20180213134618/http://www.bbc.co.uk/programmes/genres/factual">Factual</a> </li> <li class=""> <a href="/web/20180213134618/http://www.bbc.co.uk/programmes/genres/news">News</a> </li> <li class=""> <a href="/web/20180213134618/http://www.bbc.co.uk/programmes/genres/religionandethics">Religion & Ethics</a> </li> </ul> </div></div></div></div><div class="grid one-half bpw2-one-sixth bpe-one-eighth footer__service centi"><div class="grid__inner grid__inner--flush"><div class="footer__service-island br-service-brand-box fauxcolumn"> <a class="islet--vertical footer__service__logo bpw-text--center" href="/web/20180213134618/http://www.bbc.co.uk/radio4"><img alt="BBC Radio 4 homepage" src="https://web.archive.org/web/20180213134618im_/http://static.bbci.co.uk/programmes/2.277.0.173/img/logos/112x63/bbc_radio_four.png"/></a> <div class="footer__watch-live"> <div class="lazy-module" data-lazyload-inc="https://www.bbc.co.uk/schedules/network/radio4/on-now?partial=legacy_2013" data-lazyload-threshold="768" data-lazyload-delay="true"> </div> </div> </div></div></div><div class="grid one-half bpw2-one-sixth bpe-one-eighth footer__service-nav centi"><div class="grid__inner grid__inner--flush"><div class="footer__service__nav"> <div class="br-service-brand-box--alt fauxcolumn"> <ul class="footer__service__nav__list list-unstyled footer__service-island"><li class="footer__service__navitem"><a href="/web/20180213134618/http://www.bbc.co.uk/radio4" title="BBC Radio 4 homepage">Home</a></li><li class="footer__service__navitem"><a href="/web/20180213134618/http://www.bbc.co.uk/radio4/help" class="br-text">Help</a></li><li class="footer__service__navitem"><a href="/web/20180213134618/http://www.bbc.co.uk/radio4/programmes/schedules/fm" class="br-text">Schedule</a></li><li class="footer__service__navitem"><a href="/web/20180213134618/http://www.bbc.co.uk/podcasts/radio4" class="br-text">Downloads</a></li><li class="footer__service__navitem"><a href="/web/20180213134618/http://www.bbc.co.uk/blogs/radio4/" class="br-text">Blog</a></li> </ul> <script>require(["jquery-1.9", "istats-1"],function($, istats) {$(function() {istats.track("internal", { region: $(".footer__service__navitem"),linkLocation: "programmes_global_footer_servicenav"});});});</script> </div> </div></div></div></div></div></div></div> </div> <script src="https://web.archive.org/web/20180213134618js_/https://static.bbci.co.uk/radioonairpanel/0.2.6.20180131153656/scripts/panel.js"></script> <script type="text/javascript">/*<![CDATA[*/ onAirPanel.updateUrl = 'https://web.archive.org/web/20180213134618/https://polling.bbc.co.uk/modules/onairpanel/include/bbc_radio_fourfm.jsonp'; onAirPanel.sid = 'bbc_radio_fourfm'; onAirPanel.state = 'normal'; onAirPanel.isTabletDevice = false; onAirPanel.panelFlagStatus = 'GREEN'; onAirPanel.pollingTimeout = 25000; /*]]>*/</script> <div data-radionav-active-masterbrand="bbc_radio_four"> <script type="text/javascript"> if ((navigator.userAgent.indexOf('Windows Phone 8') !== -1) && (window.external && 'notify' in window.external)) { window.external.notify("config://www.bbc.co.uk/radio/config/windows-phone"); } var rsnTranslations = { "searchIPR": "Search iPlayer Radio" }; var rmpAssetPath = "https://web.archive.org/web/20180213134618/https://rmp.files.bbci.co.uk/rmp-shared-assets/1.0.2/img/network-logos/"; require(["radioNav", "radioNavLazyLoading", "radioNavStats", "windowsPhoneApp"]); </script> <script id="result-history" type="text/x-handlebars-template"> {{#each this}}<div class="radionav-result-item"> <div class="radionav-result-link" tabindex="0" aria-label="{{ this }}"> <h2 class="radionav-result-title">{{ this }}</h2> <button class="radionav-remove-link" title="Delete {{ this }} from search history"></button> </div> </div>{{/each}} </script> <script id="result-az" type="text/x-handlebars-template"> <h2 class="radionav-result-title" tabindex="0" aria-label="A-Z">A-Z</h2> <div class="radionav-result-item radionav-result-item--long"> <a class="az-link radionav-result-link cf" href= "/radio/programmes/a-z/by/{{ this }}/current"> <div class="letter-wrap">{{ this }}</div> All programmes beginning with {{ this }} </a> </div> </script> <script id="result-networks" type="text/x-handlebars-template"> <h2 class="radionav-result-title" tabindex="0" aria-label="Stations">Stations</h2> {{#each this.results}}<div class="radionav-result-item radionav-result-network {{#if id ~}} radionav__{{ id }} {{~/if}}"> <a data-mid="{{#if id ~}}{{ id }}{{~/if}}" class="radionav-result-link shadow-bottom" href= "/{{ masterbrand.key }}"> {{#if hasImage ~}} <img class="radionav-img-wrap" src="{{../this.rmpAssetPath}}{{coverage}}/{{id}}_filled.svg"> {{~/if}} <p class="radionav-result-link--flush radionav-result-link--text-wrap">{{ masterbrand.title }}</p> </a> </div>{{/each}} </script> <script id="result-categories" type="text/x-handlebars-template"> <h2 class="radionav-result-title" tabindex="0" aria-label="Categories">Categories</h2> {{#each this ~}}<div class="radionav-result-item"> <a class="radionav-result-link" href= "/{{ link }}"> {{#if mainTitle ~}} {{ mainTitle }}: {{~/if}} {{#if title ~}} {{ title }} {{~/if}} </a> </div>{{~/each}} </script> <script id="result-episodes" type="text/x-handlebars-template"> <h2 class="radionav-result-title" tabindex="0" aria-label="Episodes">Episodes</h2> {{#each this}}<div class="radionav-result-item radionav-result-episode {{#if section ~}} radionav__{{ section.id }} {{~/if}}"> <a data-published-date="{{published}}" data-mid="{{#if section ~}}{{ section.id }}{{~/if}}" class="radionav-result-link radionav-result-link--no-padding result-episodes--img shadow-bottom" href= "/programmes/{{ pid }}"> <figure class="radionav-img-ratio-16x9"> <img class="radionav-episode-image radionav-img-fit-content radionav-img-medium--wide" src="//web.archive.org/web/20180213134618/http://ichef.bbci.co.uk/images/ic/480x270/{{ image_pid }}.jpg"> <div class="result-cta--play"> <img class="radionav-img-tiny" src="//web.archive.org/web/20180213134618/http://rmp.files.bbci.co.uk/radio-nav-service/504/img/cta_play.svg"> </div> </figure> <p class="radionav-result-link--flush radionav-result-link--text-wrap">{{ title }} </p> {{#if subtitle}}<p class="radionav-result-link--flush radionav-result-link--text-no-wrap"> {{subtitle}} </p>{{~/if}} </a> </div>{{/each}} </script> <script id="result-programmes" type="text/x-handlebars-template"> <h2 class="radionav-result-title" tabindex="0" aria-label="Programmes">Programmes</h2> {{#each this}}<div class="radionav-result-item radionav-result-programme {{#if section ~}} radionav__{{ section.id }} {{~/if}}"> <a data-mid="{{#if section ~}}{{ section.id }}{{~/if}}" class="radionav-result-link shadow-bottom" href= "/programmes/{{ pid }}"> <figure class="radionav-img-wrap radionav-img-small"> <img class="radionav-img-fit-content" src="//web.archive.org/web/20180213134618/http://ichef.bbci.co.uk/images/ic/96x96/{{ image_pid }}.jpg"> </figure> <p class="radionav-result-link--flush radionav-result-link--text-no-wrap">{{ title }}</p> </a> {{#each episodes}}<div class="radionav-result-item radionav-result-item--sub"> <a data-published-date="{{published}}" class="radionav-result-link shadow-bottom" href="/programmes/{{ pid }}"> <figure class="radionav-img-wrap radionav-img-small"> <img class="radionav-img-fit-content" src="//web.archive.org/web/20180213134618/http://rmp.files.bbci.co.uk/radio-nav-service/504/img/cta_play.svg"> </figure> <p class="radionav-result-link--flush radionav-result-link--text-no-wrap">Latest episode</p> </a> {{/each}}</div></div>{{/each}} </script> <script id="result-visited" type="text/x-handlebars-template"> <h2 class="radionav-result-title" tabindex="0" aria-label="Recently visited">Recently visited</h2> {{#each this}}<div class="radionav-result-item result-visited {{# if mid }}radionav__{{ mid }}{{/if}}"> <a class="radionav-result-link shadow-bottom" href= "{{ link }}" tabindex="0"> {{# if image }} {{{ image }}} {{/if}} <p class="radionav-result-link__title radionav-result-link--flush radionav-result-link--text-no-wrap">{{ text }}</p> <button class="radionav-remove-link" title="Delete {{ text }} from search visited history"></button> </a> </div>{{/each}} </script> </div> </div> <!-- BrandingProjectId: "419", ThemeVersionId: "4233", NavigationVersionId: "8116". Published on 2018-02-13T01:48:23+00:00 --> </div> <div id="orb-footer" class="orb-footer orb-footer-black b-footer--black--white"> <div id="navp-orb-footer-promo" class="orb-footer-black"></div> <aside role="complementary"> <div id="orb-aside" class="orb-nav-sec b-r b-g-p"> <div class="orb-footer-inner" role="navigation"> <h2 class="orb-footer-lead">Explore the BBC</h2> <div class="orb-footer-primary-links"> <ul> <li class="orb-nav-home orb-d"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/">Home</a> </li> <li class="orb-nav-homedotcom orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/">Home</a> </li> <li class="orb-nav-news orb-d"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.co.uk/news">News</a> </li> <li class="orb-nav-newsdotcom orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/news">News</a> </li> <li class="orb-nav-sport"> <a href="/web/20180213134618/http://www.bbc.co.uk/sport/">Sport</a> </li> <li class="orb-nav-weather"> <a href="/web/20180213134618/http://www.bbc.co.uk/weather/">Weather</a> </li> <li class="orb-nav-shop orb-w"> <a href="https://web.archive.org/web/20180213134618/http://shop.bbc.com/">Shop</a> </li> <li class="orb-nav-earthdotcom orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/earth/">Earth</a> </li> <li class="orb-nav-travel-dotcom orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/travel/">Travel</a> </li> <li class="orb-nav-capital orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/capital/">Capital</a> </li> <li class="orb-nav-iplayer orb-d"> <a href="/web/20180213134618/http://www.bbc.co.uk/iplayer/">iPlayer</a> </li> <li class="orb-nav-culture orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/culture/">Culture</a> </li> <li class="orb-nav-autos orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/autos/">Autos</a> </li> <li class="orb-nav-future orb-w"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/future/">Future</a> </li> <li class="orb-nav-tv"> <a href="/web/20180213134618/http://www.bbc.co.uk/tv/">TV</a> </li> <li class="orb-nav-radio"> <a href="/web/20180213134618/http://www.bbc.co.uk/radio/">Radio</a> </li> <li class="orb-nav-cbbc"> <a href="/web/20180213134618/http://www.bbc.co.uk/cbbc">CBBC</a> </li> <li class="orb-nav-cbeebies"> <a href="/web/20180213134618/http://www.bbc.co.uk/cbeebies">CBeebies</a> </li> <li class="orb-nav-food"> <a href="/web/20180213134618/http://www.bbc.co.uk/food/">Food</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/iwonder">iWonder</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/education">Bitesize</a> </li> <li class="orb-nav-travel orb-d"> <a href="/web/20180213134618/http://www.bbc.co.uk/travel/">Travel</a> </li> <li class="orb-nav-music"> <a href="/web/20180213134618/http://www.bbc.co.uk/music/">Music</a> </li> <li class="orb-nav-earth orb-d"> <a href="https://web.archive.org/web/20180213134618/http://www.bbc.com/earth/">Earth</a> </li> <li class="orb-nav-arts"> <a href="/web/20180213134618/http://www.bbc.co.uk/arts/">Arts</a> </li> <li class="orb-nav-makeitdigital"> <a href="/web/20180213134618/http://www.bbc.co.uk/makeitdigital">Make It Digital</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/taster">Taster</a> </li> <li class="orb-nav-nature orb-w"> <a href="/web/20180213134618/http://www.bbc.co.uk/nature/">Nature</a> </li> <li class="orb-nav-local"> <a href="/web/20180213134618/http://www.bbc.co.uk/local/">Local</a> </li> <li class="orb-nav-tomorrowsworld orb-d"> <a href="/web/20180213134618/http://www.bbc.co.uk/tomorrowsworld">Tomorrow's World</a> </li> </ul> </div> </div> </div> </aside> <footer role="contentinfo"> <div id="orb-contentinfo" class="orb-nav-sec b-r b-g-p"> <div class="orb-footer-inner"> <ul> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/terms/">Terms of Use</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/aboutthebbc/">About the BBC</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/privacy/">Privacy Policy</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/privacy/cookies/about">Cookies</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/accessibility/">Accessibility Help</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/guidance/">Parental Guidance</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/contact/">Contact the BBC</a> </li> <li> <a href="/web/20180213134618/http://www.bbc.co.uk/bbcnewsletter">Get Personalised Newsletters</a> </li> <li class=" orb-w"> <a href="https://web.archive.org/web/20180213134618/http://advertising.bbcworldwide.com/">Advertise with us</a> </li> <li class=" orb-w"> <a href="/web/20180213134618/http://www.bbc.co.uk/privacy/cookies/international/">Ad choices</a> </li> </ul> <small> <span class="orb-hilight">Copyright © 2018 BBC.</span> The BBC is not responsible for the content of external sites. <a href="/web/20180213134618/http://www.bbc.co.uk/help/web/links/" class="orb-hilight">Read about our approach to external linking.</a> </small> </div> </div> </footer> </div> <!-- BBCDOTCOM bodyLast --><div class="bbccom_display_none"><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && window.bbcdotcom.analytics && bbcdotcom.config && !bbcdotcom.config.isSportApp()) { bbcdotcom.analytics.page(); } /*]]>*/ </script><noscript><img src="//web.archive.org/web/20180213134618im_/http://ssc.api.bbc.com/?c1=2&c2=19293874&ns_site=bbc&name=" height="1" width="1" alt=""></noscript><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.currencyProviders) { bbcdotcom.currencyProviders.write(); } /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.currencyProviders) { bbcdotcom.currencyProviders.postWrite(); } /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.data && bbcdotcom.data.stats && bbcdotcom.data.stats == 1 && bbcdotcom.config && bbcdotcom.config.isLotameEnabled && bbcdotcom.config.isLotameEnabled() && bbcdotcom.lotame){ bbcdotcom.lotame.write(); } /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ if (window.bbcdotcom && bbcdotcom.data && bbcdotcom.data.stats && bbcdotcom.data.stats === 1 && bbcdotcom.utils && window.location.pathname === '/' && window.bbccookies && bbccookies.readPolicy('performance') ) { var wwhpEdition = bbcdotcom.utils.getMetaPropertyContent('wwhp-edition'); var _sf_async_config={}; /** CONFIGURATION START **/ _sf_async_config.uid = 50924; _sf_async_config.domain = "bbc.co.uk"; _sf_async_config.title = "Homepage"+(wwhpEdition !== '' ? ' - '+wwhpEdition : ''); _sf_async_config.sections = "Homepage"+(wwhpEdition !== '' ? ', Homepage - '+wwhpEdition : ''); _sf_async_config.region = wwhpEdition; _sf_async_config.path = "/"+(wwhpEdition !== '' ? '?'+wwhpEdition : ''); /** CONFIGURATION END **/ (function(){ function loadChartbeat() { window._sf_endpt=(new Date()).getTime(); var e = document.createElement("script"); e.setAttribute("language", "javascript"); e.setAttribute("type", "text/javascript"); e.setAttribute('src', '//web.archive.org/web/20180213134618/http://static.chartbeat.com/js/chartbeat.js'); document.body.appendChild(e); } var oldonload = window.onload; window.onload = (typeof window.onload != "function") ? loadChartbeat : function() { oldonload(); loadChartbeat(); }; })(); } /*]]>*/ </script><script type="text/javascript"> /*<![CDATA[*/ (function() { window.bbcdotcom.bodyLast = true; }()); /*]]>*/ </script></div><!-- BBCDOTCOM all code in page --> <script type="text/javascript" id="orb-js-script" data-assetpath="http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/" src="https://web.archive.org/web/20180213134618js_/http://static.bbci.co.uk/frameworks/barlesque/3.21.31/orb/4/script/orb.min.js"></script> <script type="text/javascript"> (function() { 'use strict'; var promoManager = { url: '', promoLoaded: false, makeUrl: function (theme, site, win) { var loc = win? win.location : window.location, proto = loc.protocol, host = loc.host, url = proto + '//' + ((proto.match(/s:/i) && !host.match(/^www\.(int|test)\./i))? 'ssl.' : 'www.'), themes = ['light', 'dark']; if ( host.match(/^(?:www|ssl|m)\.(int|test|stage|live)\.bbc\./i) ) { url += RegExp.$1 + '.'; } else if ( host.match(/^pal\.sandbox\./i) ) { url += 'test.'; } theme = themes[ +(theme === themes[0]) ]; return url + 'bbc.co.uk/navpromo/card/' + site + '/' + theme; }, init: function(node) { var disabledByCookie = (document.cookie.indexOf('ckns_orb_nopromo=1') > -1), that = this; if (window.promomanagerOverride) { for (var p in promomanagerOverride) { that[p] = promomanagerOverride[p]; } } if ( window.orb.fig('uk') && !disabledByCookie ) { require(['orb/async/_footerpromo', 'istats-1'], function(promo, istats) { var virtualSite = istats.getSite() || 'default'; that.url = (window.promomanagerOverride || that).makeUrl('light', virtualSite); if (that.url) { promo.load(that.url, node, { onSuccess: function(e) { if(e.status === 'success') { node.parentNode.className = node.parentNode.className + ' orb-footer-promo-loaded'; promoManager.promoLoaded = true; promoManager.event('promo-loaded').fire(e); } }, onError: function() { istats.log('error', 'orb-footer-promo-failed'); bbccookies.set('ckns_orb_nopromo=1; expires=' + new Date(new Date().getTime() + 1000 * 60 * 10).toGMTString() + ';path=/;'); } }); } }); } } }; define('orb/promomanager', ['orb/lib/_event'], function (event) { event.mixin(promoManager); return promoManager; }); require(['orb/promomanager'], function (promoManager) { promoManager.init(document.getElementById('navp-orb-footer-promo')); }) })(); </script> <script type="text/javascript"> require.config({ paths: { "mybbc/templates": '//web.archive.org/web/20180213134618/http://mybbc.files.bbci.co.uk/notification-ui/3.8.4/templates', "mybbc/notifications": '//web.archive.org/web/20180213134618/http://mybbc.files.bbci.co.uk/notification-ui/3.8.4/js' } }); require(['mybbc/notifications/NotificationsMain', 'idcta/idcta-1'], function (NotificationsMain, idcta) { var loadNotifications = function (fig) { if (fig.geo.isUK()) { NotificationsMain.run(idcta, '//web.archive.org/web/20180213134618/http://mybbc.files.bbci.co.uk/notification-ui/3.8.4/'); } }; var orbFig = window.orb.fig; if (typeof orbFig.load === 'function') { // Use new async API from Orbit orbFig.load(loadNotifications, loadNotifications); } else { // Use old sync-only API from PAL orbfig project loadNotifications(orbFig); } }); </script> <script type="text/javascript"> if (typeof require !== 'undefined') { require(['istats-1'], function(istats){ istats.track('external', { region: document.getElementsByTagName('body')[0] }); istats.track('download', { region: document.getElementsByTagName('body')[0] }); }); } </script> <script type="text/javascript"> if (window.SEARCHBOX.suppress === false && window.SEARCHBOX.locale && /^en-?.*?/.test(window.SEARCHBOX.locale)) { require.config({ paths: { "search/searchbox": window.SEARCHBOX.searchboxAppStaticPrefix, "disco-layer": "//web.archive.org/web/20180213134618/http://nav.files.bbci.co.uk/discovery-layer/0.0.1-225.3e98a7a/app" } }); require(['search/searchbox/searchboxDrawer'], function (SearchboxDrawer) { SearchboxDrawer.run(window.SEARCHBOX); }); var loadDiscoveryLayer = function (fig) { if (fig.geo.isUK()) { require(['disco-layer'], function (discoLayer) { discoLayer.run("//web.archive.org/web/20180213134618/http://nav.files.bbci.co.uk/discovery-layer/content/", "//web.archive.org/web/20180213134618/http://nav.files.bbci.co.uk/discovery-layer/0.0.1-225.3e98a7a/main.css"); }); } }; var orbFig = window.orb.fig; if (typeof orbFig.load === 'function') { // Use new async API from Orbit orbFig.load(loadDiscoveryLayer); } else { // Use old sync-only API from PAL orbfig project loadDiscoveryLayer(orbFig); } } </script> <script> require(['rv-bootstrap'], function(bootstrap){ require(["jquery-1.9"],function($) { $("[data-linktrack]").each(function(){ this.linktrack = this.getAttribute('data-linktrack'); }) }); }); </script> <script>require(["jquery-1.9", "istats-1"],function($, istats) {istats.track("internal", { region: $(".programme--tv .programme__player"),linkLocation: "programmes_iplayer_programmeobject"});istats.track("internal", { region: $(".programme--radio .programme__player"),linkLocation: "programmes_radioiplayer_programmeobject"});istats.track("internal", { region: $(".br-masthead .service-brand-logo-master"),linkLocation: "programmes_global_ribbon"});});</script> <!-- /programmes version: 2.277.0.173 --> <script type="text/javascript">require(["megavolt-client","istats-1","orb/cookies"],function(t,e,i){function o(){return"true"===l&&a&&t&&"function"==typeof t.getMVTIStatsLabels}function n(){!c&&o()?setTimeout(function(){e.invoke()},"500"):e.invoke()}var s=navigator.userAgent.toLowerCase(),a=!(s.indexOf("msie")>-1)||parseInt(s.split("msie")[1],10)>10,c=!1,l="true";if(i.isAllowed("s1"))try{if(o()&&t.getMVTIStatsLabels(function(t){e.addLabels(t),c=!0}),!require.s.contexts._.config.paths.idcta)return void n();require(["idcta/idcta-1"],function(t){t&&"function"==typeof t.getIStatsLabels&&e.addLabels(t.getIStatsLabels()),n()},function(t){throw t})}catch(t){console&&"function"==typeof console.log&&console.log("an exception occurred while adding idcta labels to istats, invoking istats without them",t),n()}});</script> </body> </html> <!-- FILE ARCHIVED ON 13:46:18 Feb 13, 2018 AND RETRIEVED FROM THE INTERNET ARCHIVE ON 16:09:29 Dec 11, 2024. JAVASCRIPT APPENDED BY WAYBACK MACHINE, COPYRIGHT INTERNET ARCHIVE. ALL OTHER CONTENT MAY ALSO BE PROTECTED BY COPYRIGHT (17 U.S.C. SECTION 108(a)(3)). --> <!-- playback timings (ms): captures_list: 0.61 exclusion.robots: 0.031 exclusion.robots.policy: 0.018 esindex: 0.011 cdx.remote: 17.02 LoadShardBlock: 275.302 (3) PetaboxLoader3.datanode: 103.224 (4) PetaboxLoader3.resolve: 365.596 (2) load_resource: 245.874 -->