Losing Chess

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**Losing Chess**, (Antichess, Giveaway Chess, Suicide Chess, Killer Chess, LC)
a [[Chess#Variants|chess variant]] in which the objective of each player is to have no [[Moves|moves]], that is to lose all of his [[Pieces|pieces]] or be [[Stalemate|stalemated]]. There are variations called LC1, LC2, LC3 and LC4, in the 'International' ruleset LC1, capturing is compulsory, the [[King]] is an ordinary piece to which a [[Pawn]] can [[Promotions|promote]], and there is no [[Castling|castling]], [[Check|check]] and [[Checkmate|checkmate]]. In the [[FICS]] version LC2, a stalemate means that the side with least pieces wins <ref>[[http://ilk.uvt.nl/icga/games/losingchess/|Losing Chess]] by [[Guy Haworth]], [[ICGA]]</ref>.

=Solving=
Since late 2011 [[Mark Watkins]] worked on his long-term goal to [[https://en.wikipedia.org/wiki/Solved_game#Weak|weakly solve]] the game of [[Losing Chess]], presumably by showing that 1. e3 wins for White. As of summer 2014 <ref>[[Mark Watkins]] (**2014**). //Solved Openings in Losing Chess//. [[ICGA Journal#37_2|ICGA Journal, Vol. 37, No. 2]]</ref>, leaving b6 and c5 as the remaining Black responses <ref>[[http://www.jsbeasley.co.uk/losinge3e6.htm|Losing Chess 1 e3 e6]] by [[John Beasley]], August 2014</ref>, all other responses to 1.e3 are indeed White wins, along with earlier work done by [[Ben Nye]] and others, as demonstrated by [[Proof-Number Search]] combined with [[Endgame Tablebases]]. On February 02, 2015, 1. e3 c5 was announced solved, on October 10, 2016, 1. e3 b6, proving 1.e3 wins <ref>[[http://www.open-chess.org/viewtopic.php?f=3&t=3023|Losing Chess: 1. e3 wins]] by [[Mark Watkins|BB+]], [[Computer Chess Forums|OpenChess Forum]], October 10, 2016</ref>.
[[#Engines]]
=Engines=
To expand this list of [[Engines|engines]] able to play Losing Chess, create a new engine page with the [[Guidance for Creating New Pages#Tags|tag]] "[[https://chessprogramming.wikispaces.com/tag/view/losingchess|losingchess]]", or assign the tag to appropriate existing engine pages.
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=See also=
* [[Proof-Number Search]]

=Publications=
* [[John Beasley]] (**2001**). //Computer Discoveries in Losing Chess//. [[ICGA Journal#24_2|ICGA Journal, Vol. 24, No. 2]]
* [[Sacha Droste]], [[Johannes Fürnkranz]] (**2008**). //Learning of Piece Values for Chess Variants.// Technical Report TUD–KE–2008-07, Knowledge Engineering Group, [[Darmstadt University of Technology|TU Darmstadt]], [[http://www.ke.tu-darmstadt.de/publications/reports/tud-ke-2008-07.pdf|pdf]]
* [[Sacha Droste]], [[Johannes Fürnkranz]] (**2008**). //Learning the Piece Values for three Chess Variants//. [[ICGA Journal#31_4|ICGA Journal, Vol. 31, No. 4]]
* [[Mark Watkins]] (**2012**). //A status report on Losing Chess//. [[http://magma.maths.usyd.edu.au/~watkins/LOSING_CHESS/losing.pdf|pdf]]
* [[Mark Watkins]] (**2014**). //Solved Openings in Losing Chess//. [[ICGA Journal#37_2|ICGA Journal, Vol. 37, No. 2]], [[http://magma.maths.usyd.edu.au/~watkins/LOSING_CHESS/losing2014.pdf|preprint as pdf]]
* [[Mark Watkins]] (**2017**). //Losing Chess: 1. e3 Wins for White//. [[ICGA Journal#39_2|ICGA Journal, Vol. 39, No. 2]]

=Forum Posts=
* [[http://www.open-chess.org/viewtopic.php?f=3&t=3023|Losing Chess: 1. e3 wins]] by [[Mark Watkins|BB+]], [[Computer Chess Forums|OpenChess Forum]], October 10, 2016
* [[http://www.talkchess.com/forum/viewtopic.php?t=61684|Losing chess / suicide chess (weakly) solved]] by [[Ronald de Man]], [[CCC]], October 11, 2016
* [[http://www.talkchess.com/forum/viewtopic.php?t=61832|Suicide chess tablebases (stalemated player wins)]] by [[Niklas Fiekas]], [[CCC]], October 25, 2016 » [[Syzygy Bases]]

=External Links=
* [[https://en.wikipedia.org/wiki/Losing_chess|Losing chess from Wikipedia]]
* [[http://ilk.uvt.nl/icga/games/losingchess/|Losing Chess]] by [[Guy Haworth]], [[ICGA]]
* [[http://www.jsbeasley.co.uk/|The John and Sue Beasley WebSite]]
* [[http://www.chessvariants.org/diffobjective.dir/giveaway.html|Losing Chess]] by [[Hans Bodlaender]], [[http://en.wikipedia.org/wiki/The_Chess_Variant_Pages|The Chess Variant Pages]]
* [[http://poincare.matf.bg.ac.rs/~andrew/suicide/StanGold/Index.htm|Losing Chess Page]] by [[Stan Goldovski]]
* [[https://www.unix-ag.uni-kl.de/~chess/gicshelp/node198.html|Suicide Chess Rules - Unix-AG]]
* [[http://magma.maths.usyd.edu.au/~watkins/LOSING_CHESS/|Losing Chess]] by [[Mark Watkins]]

=References= 
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=What links here?= 
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