Editing List of chess variants (section)

==== Variant end-of-game rules ====
{{Chess diagram
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 |'''Anti-king chess'''. The [[Fairy chess piece#Anti-King|anti-king]] is shown as an inverted king. White's anti-king starts on d6, while Black's anti-king starts on d3.
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* '''Anti-King chess''': Features an anti-king. The anti-king moves in the same way as a king. This piece is in check when not attacked. If a player's anti-king is in check and unable to move to a square attacked by the opponent, the player loses (checkmate). The anti-king cannot capture enemy pieces, but can capture friendly pieces. A king may not attack the opponent's anti-king. The anti-king may not check its own king. (That is, a position when a king and an anti-king are on adjacent squares is possible, does not mean any check and does not help the anti-king to avoid check if any other piece does not attack him.) Other rules are the same as in standard chess, including check and checkmate to the regular king. By Peter Aronson (2002).<ref>[http://www.chessvariants.org/diffobjective.dir/anti-king-chess.html Anti-King chess] {{Webarchive|url=https://web.archive.org/web/20060514082330/http://www.chessvariants.org/diffobjective.dir/anti-king-chess.html |date=2006-05-14 }} by Peter Aronson.</ref><ref>Two setups were suggested by the inventor initially, but only the second one (Anti-King II), which is very close to standard chess gained popularity.</ref>
* '''[[Apocalypse (chess variant)|Apocalypse]]''': On a 5×5 board, each side has two knights and five pawns, win by eliminating all enemy pawns. Prepared moves are executed simultaneously. By C. S. Elliott (1976).
* '''Colour Chess''': Played on a multicoloured board of six colours, with the order of turns taken as in '''Marseillais chess''' but with rules indicating which colour each piece may move to. The game is won by capturing the opponent's king (rather than checkmate) and kings may remain in check. Similar variants include '''Sequence Colour Chess''', and '''Swarm Colour Chess'''.<ref>{{Cite web|url=https://www.youtube.com/watch?v=5h03T_fwcHk| archive-url=https://ghostarchive.org/varchive/youtube/20211118/5h03T_fwcHk| archive-date=2021-11-18 | url-status=live|title=COLOUR CHESS - How to Play|date=September 1, 2017|via=YouTube}}{{cbignore}}</ref><ref>{{Cite web|url=https://www.dogearedgames.com/colourchess/|title=Colour Chess + Lure|access-date=2018-05-28|archive-date=2018-05-29|archive-url=https://web.archive.org/web/20180529130319/https://www.dogearedgames.com/colourchess/|url-status=live}}</ref>  By Tom Norfolk (2017).<ref>{{Cite web|url=https://boardgamegeek.com/boardgame/217977/colour-chess-lure|title=Colour Chess + Lure|website=BoardGameGeek|access-date=2018-05-28|archive-date=2018-05-28|archive-url=https://web.archive.org/web/20180528231130/https://boardgamegeek.com/boardgame/217977/colour-chess-lure|url-status=live}}</ref>
*'''{{vanchor|Duck Chess|text=Duck Chess}}''': In addition to the usual pieces, the two players have joint control of a small rubber duck which acts as a "blocker" (i.e. nothing can move onto or through it), and which must be moved to a new square after every turn. The goal is to successfully capture the opponent's king. A [[stalemate]]d player wins.<ref>{{Cite web |title=Duck Chess rules |url=https://duckchess.com/ |access-date=2022-05-19 |website=duckchess.com |archive-date=2022-05-19 |archive-url=https://web.archive.org/web/20220519003230/https://duckchess.com/ |url-status=live }}</ref>
* '''[[Extinction chess]]''': To win, a player must capture all of any one type of pieces of the opponent (for example, all the knights an opponent has, or all their pawns, etc.).
* '''[[Hexapawn]]''':  Played on a rectangular board of variable size with only pawns. The goal of each player is to advance one of their pawns to the opposite end of the board or to prevent the other player from moving.
{{Chess diagram 9x9
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 |[[Jeson Mor]] gameboard and starting setup
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* '''[[Jeson Mor|Jesön Mor]]''': Nine knights per side on a 9×9 board. The first to occupy square e5, and then leave it, wins the game. From Mongolia.
* {{Anchor|King of the Hill}}'''King of the Hill''': In addition to checkmate, a legal move that moves one's own king to one of the center squares (d4, d5, e4, e5), without moving illegally wins. This is analogous to [[Sannin shogi]]'s rule that allows a player to win by legally moving their king to the center.<ref>{{cite web|url=https://en.lichess.org/variant/kingOfTheHill|title=King of the Hill • Bring your King to the center to win the game. • lichess.org|website=en.lichess.org|access-date=2016-09-03|archive-date=2016-09-14|archive-url=https://web.archive.org/web/20160914014139/https://en.lichess.org/variant/kingOfTheHill|url-status=live}}</ref>
{{Chess diagram|clear=right
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 |'''Knightmate''' starting position
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* {{Anchor|Knightmate}}'''Knightmate''' (or '''Mate The Knight'''): The goal is to checkmate the opponent's knight (initially on e-file). The kings on b- and g-files can be captured as other pieces. Pawns can promote to kings but not to knights. By Bruce Zimov (1972).<ref>[http://www.chessvariants.org/diffobjective.dir/knightmate.html Knightmate] {{Webarchive|url=https://web.archive.org/web/20060304103343/http://www.chessvariants.org/diffobjective.dir/knightmate.html |date=2006-03-04 }} by [[Hans Bodlaender]]</ref>
* '''[[Losing chess]]''' (or '''Antichess''', '''Giveaway chess''', '''Suicide chess''', '''Killer chess''', '''Take-all chess''', '''Take-me chess''', '''Reverse chess'''): Capturing moves are mandatory and the objective is to lose all one's pieces. There is no check; the king is captured like an ordinary piece.

{{Chess diagram|clear=right
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 |'''[[Racing Kings]]''': first king to 8th rank wins
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* '''[[Racing Kings]]''': Players race kings to the 8th rank. Captures, but no checks or checkmate.{{sfnp|Pritchard|2000|p=41}}
* {{Anchor|Three-check chess}}'''[[Three-check chess]]''': Takes the "three strikes, you're out" rule from [[baseball]] and applies it to chess; standard rules of chess apply,<ref>{{cite web |title=Three-check • Check your opponent 3 times to win the game |url=https://lichess.org/variant/threeCheck |website=Lichess.Org |publisher=Lichness.org |access-date=30 July 2018 |archive-date=18 July 2018 |archive-url=https://web.archive.org/web/20180718144821/https://lichess.org/variant/threeCheck |url-status=live }}</ref> but a player can alternatively win by putting their opponent in check three times.{{sfnp |Pritchard |1994 |p=304}}<ref name=chess.com3check>{{cite web|url=https://www.chess.com/article/view/how-to-play-variants-on-chess-com|title=Chess Variants {{!}} 5 Amazing Examples|website=Chess.com|access-date=2018-07-19|archive-date=2018-07-19|archive-url=https://web.archive.org/web/20180719113800/https://www.chess.com/article/view/how-to-play-variants-on-chess-com|url-status=live}}</ref><ref>{{cite web |title=Teaching Chess the Easy and Fun Way with Mini-Games - UIL |url=http://www.uiltexas.org/files/capitalconference/Randolph-TeachingChesstheEasyFunWaywithMiniGames.pdf |archive-url=https://web.archive.org/web/20140327090603/http://www.uiltexas.org/files/capitalconference/Randolph-TeachingChesstheEasyFunWaywithMiniGames.pdf |archive-date=2014-03-27 |url-status=live |website=Teaching Chess the Easy and Fun Way with Mini-Games |access-date=30 July 2018}}</ref> In ''The Encyclopedia of Chess Variants'', [[David Pritchard (chess player)|David Pritchard]] notes it being of probable Soviet origin, and that [[Anatoly Karpov]] was an "invincible" player in his youth.{{sfnp |Pritchard |1994 |p=304}}{{sfnp |Pritchard |2007 |p=83}}