[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-412301-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-412301-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","chess-glossary","Chess Glossary","","Alphabetical glossary of chess special terms, introducing concise definitions used in play and analysis. Covers tactical and strategic concepts such as attack types (including discovered and double attacks), capture rules, check variations (including perpetual check), and end-of-game conditions like checkmate. Also explains core board terminology—ranks, files, diagonals, center—and key piece concepts such as bishop names and castling mechanics, including restrictions and timing of legal moves.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/literature/","Literature",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/chess-glossary/412301/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/chess-glossary/412301.png","ImageObject",300,407,{"name":42,"@type":43},"Riley","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-11-04","2026-09-28",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",10,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What is the difference between a normal attack and a discovered attack?","Question",{"text":63,"@type":64},"A normal attack threatens something directly. A discovered attack happens when a move opens a line, uncovering an attack by another piece.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"When is a king allowed to castle?",{"text":68,"@type":64},"Castling is prevented if the king’s starting square, crossing square, or destination square is attacked, or if any piece lies between the king and the rook involved.",{"name":70,"@type":61,"acceptedAnswer":71},"What does checkmate mean in chess?",{"text":72,"@type":64},"One player’s king is in check and cannot capture the checking piece, block the line, or move to a safe square. Checkmate ends the game.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},412301,1790818954,{"code":4,"msg":82,"data":83},"success",[84,88,91,95,100,105,110,115,120,123,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":89,"slug":90},80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":92,"show_sort_weight":93,"slug":94},"Exam",70,"exam",{"id":96,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},5,"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":102,"show_sort_weight":103,"slug":104},6,"Technology",50,"technology",{"id":106,"doc_module":4,"doc_module_name":25,"category_name":107,"show_sort_weight":108,"slug":109},7,"Healthcare",40,"healthcare",{"id":111,"doc_module":4,"doc_module_name":25,"category_name":112,"show_sort_weight":113,"slug":114},8,"Research & Report",30,"research-report",{"id":116,"doc_module":4,"doc_module_name":25,"category_name":117,"show_sort_weight":118,"slug":119},9,"Religion & Spirituality",20,"religion-spirituality",{"id":118,"doc_module":4,"doc_module_name":25,"category_name":121,"show_sort_weight":118,"slug":122},"World Cup","world-cup",{"id":55,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":55,"slug":125},"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":96,"slug":129},19,"General","general",{"code":4,"msg":82,"data":131},{"doc_id":79,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":26,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":139,"language":140,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":12,"update_tm":144,"read_time":145},1374391975076,"https://ap-avatar.wpscdn.com/avatar/14000253ca4ec9f6853?x-image-process=image/resize,m_fixed,w_180,h_180&k=1783305029341752051","Glossary  \nThere are lots of special terms that we use in the chess world. You may not be familiar with them all, so this time we start an alphabetical glossary that may help you.  \nA  \nANALYSIS-an examination of a position and \"variations\" (sequences of possible moves) .  \nATTACK-a move which threatens something (checkmate or a profitable capture) .  \nATTACK (DISCOVERED) -a move which opens a line, uncovering an attack by another piece.  \nATTACK (DOUBLE) -a simultaneous attack against two separate targets, an important subset is the FORK (one man attacking two) and I have coined the term \"trident\" for a piece which attacks three men simultaneously.  \nB  \nBACK RANK-the RANK on which the pieces stand at the beginning of the game, so the first rank (White) and the eighth rank (Black) . Often the scene of a dramatic CORRIDOR mate.  \nBISHOP-a piece with many different names, for example \"fool\" or \"jester\" (French), \"runner\"(German), \"elephant\" (Russian), etc. It is represented by the letter B or by the figurine L.  \nBLINDNESS- \"chess blindness\" when a player fails to see something that is obvious to you or me. It is also when you fail to see something that is obvious to me. It even applies when I fail to see something obvious.  \nBLITZ-probably the fastest sport on earth. The standard format is five minutes on the clock (for each player) in which to complete the entire game. The pieces really fly (literally sometimes) . In the 1990s a tie-break version was introduced - 6 minutes for White against 5 for Black, Black getting \"draw odds\" (meaning that White had to win, any other result, stalemate for example, counting as a loss) .  \nC  \nCAPTURE- If a piece moves to a square occupied by an opponent’s piece the latter is captured and removed from the chessboard as part of the same move. NB: Cannibalism is outlawed-it isnot permitted to move a piece to a square occupied by a piece of the same colour.  \nCASTLING - the modern successor, firmly established by the end of the 16th century, to the King's Leap. Castling is a move of the king and either rook of the same colour along the player’s first rank, counting as a single move of the king and executed as follows: the king is transferred from its original square two squares towards the rook on its original square, then that rook is transferred to the square the king has just crossed.  \nThe right to castle has been lost: a if the king has already moved, or  \nb. with a rook that has already moved.  \nCastling is prevented temporarily:  \na. if the square on which the king stands, or the square which it must cross, or the square which it is to occupy, is attacked by one or more of the opponent’s pieces, or  \nb. if there is any piece between the king and the rook with which castling is to be effected.  \nCENTRE-usually the four squares d4, e4, d5, e5 .  \nCHECK-moving a piece (or pawn) so that it directly attacks the enemy king (or moving a piece off a line, revealing such a direct attack from another, stationary piece) . It is not permitted to move one's own king onto a square that is attacked by an enemy unit, so the kings can never stand immediately next to each other (even though I frequently see that, together with positions of \"mutual checkmate\" and the suchlike in games played by beginners) .  \nCHECK (DISCOVERED) -moving a piece off a line, revealing an attack on the enemy king from apiece placed further back on that line. A particular kind of DISCOVERED ATTACK.  \nCHECK (DOUBLE) -a move which checks the enemy king from the arrival square and reveals a Discovered Check (Check, Discovered) . The extra check generally increases the destructive power of the tactic.  \nCHECK (PERPETUAL) -an unstoppable sequence of checks which must, sooner or later lead to adraw either by three-fold repetition of psition (see DRAW) or under the 50-move rule (see DRAW) .  \nCHECKMATE-one player's king is in check and he/she cannot capture the checking piece, nor place anything between that piece and the king nor mov","cbCaitrRpzDQlI5h","https://ap.wps.com/l/cbCaitrRpzDQlI5h","pdf",878211,17,"English","# A\n# B\n# C","[{\"question\":\"What is the difference between a normal attack and a discovered attack?\",\"answer\":\"A normal attack threatens something directly. A discovered attack happens when a move opens a line, uncovering an attack by another piece.\"},{\"question\":\"When is a king allowed to castle?\",\"answer\":\"Castling is prevented if the king’s starting square, crossing square, or destination square is attacked, or if any piece lies between the king and the rook involved.\"},{\"question\":\"What does checkmate mean in chess?\",\"answer\":\"One player’s king is in check and cannot capture the checking piece, block the line, or move to a safe square. Checkmate ends the game.\"}]","Chess Glossary | PDF",1790591115,26]