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| {{algebraic notation|pos=toc}} | {{algebraic notation|pos=toc}} | ||
| ==Rules== | ==Rules (variant 1)== | ||
| The rules are the same as those for standard ], except for the following special rules: | The rules are the same as those for standard ], except for the following special rules: | ||
| Line 36: | Line 36: | ||
| Because of the forced capture rule, Antichess games often involve long sequences of forced captures by one player. This means that a minor mistake can ruin the game. Losing openings include 1.e4, 1.d4, 1.d3, 1.Nf3, 1.Nc3, 1.f4, 1.h4, 1.b4, 1.h3. Some of these openings took months of computer time to solve, but the wins against 1.e4, 1.d4, and 1.d3 consist of a single series of forced captures and can be played from memory by most experienced players. | Because of the forced capture rule, Antichess games often involve long sequences of forced captures by one player. This means that a minor mistake can ruin the game. Losing openings include 1.e4, 1.d4, 1.d3, 1.Nf3, 1.Nc3, 1.f4, 1.h4, 1.b4, 1.h3. Some of these openings took months of computer time to solve, but the wins against 1.e4, 1.d4, and 1.d3 consist of a single series of forced captures and can be played from memory by most experienced players. | ||
| ==Variations== | ==Variations== | ||
| ===Variant |
===Variant 2=== | ||
| Rules the same as the main rules, except: | Rules the same as the main rules, except: | ||
| * Pawns promote only to queens. | * Pawns promote only to queens. | ||
| * Stalemate is a draw. | * Stalemate is a draw. | ||
| ===Variant |
===Variant 3=== | ||
| Rules the same as the main rules, except: | Rules the same as the main rules, except: | ||
| * The king has royal powers, and removing check takes precedence over capturing. | * The king has royal powers, and removing check takes precedence over capturing. | ||
| Line 48: | Line 48: | ||
| * Stalemate is a draw. | * Stalemate is a draw. | ||
| ===Variant |
===Variant 4=== | ||
| Rules the same as variant 2, except: | Rules the same as variant 2, except: | ||
| * A player wins by reducing his forces to just his king, or by getting checkmated. | * A player wins by reducing his forces to just his king, or by getting checkmated. | ||
| ===Variant |
===Variant 5=== | ||
| Rules the same as the main rules, except: | Rules the same as the main rules, except: | ||
| * Stalemate is a win for the player with the fewer number of pieces remaining; if both have the same number, it is a draw. The piece types are irrelevant (] rules). | * Stalemate is a win for the player with the fewer number of pieces remaining; if both have the same number, it is a draw. The piece types are irrelevant (] rules). | ||
Revision as of 09:33, 3 December 2012
P. H. TörngrenTidskrift för Schack 1929
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Antichess (also known as Losing chess, Losing Game, Zero chess, Giveaway chess, Suicide chess, Killer chess, Take-all chess, Reverse chess, or Shmess) is a chess variant in which the winning objective of the players is to lose all their pieces. It is one of the most popular of all chess variants.
The origin of the game is unknown, but believed to significantly pre-date an early version, named Take Me, played in the 1870s. The most widely played variation, as described in the book Popular Chess Variants by D. B. Pritchard, is explained below.
This article uses algebraic notation to describe chess moves.Rules (variant 1)
The rules are the same as those for standard chess, except for the following special rules:
- Capturing is compulsory.
- When more than one capture is available, the player may choose.
- The king has no royal power and accordingly:
- Stalemate is a win for the stalemated player.
A player wins by losing all his pieces, or being stalemated. Apart from move repetition, draw by agreement, and the fifty-move rule, the game is also drawn when a win is impossible (such as if a dark-squared bishop and a light-squared bishop are the only pieces remaining).
Analysis
Because of the forced capture rule, Antichess games often involve long sequences of forced captures by one player. This means that a minor mistake can ruin the game. Losing openings include 1.e4, 1.d4, 1.d3, 1.Nf3, 1.Nc3, 1.f4, 1.h4, 1.b4, 1.h3. Some of these openings took months of computer time to solve, but the wins against 1.e4, 1.d4, and 1.d3 consist of a single series of forced captures and can be played from memory by most experienced players.
Variations
Variant 2
Rules the same as the main rules, except:
- Pawns promote only to queens.
- Stalemate is a draw.
Variant 3
Rules the same as the main rules, except:
- The king has royal powers, and removing check takes precedence over capturing.
- A player wins by reducing his forces to just his king, or by checkmating the opponent.
- Stalemate is a draw.
Variant 4
Rules the same as variant 2, except:
- A player wins by reducing his forces to just his king, or by getting checkmated.
Variant 5
Rules the same as the main rules, except:
- Stalemate is a win for the player with the fewer number of pieces remaining; if both have the same number, it is a draw. The piece types are irrelevant (FICS rules).
Loser's chess (ICC)
Losing chess (Suicide chess) has been a popular chess variant on most chess servers that have offered it ever since the early days of the ICS. There are two major variants played online, Losers Chess (aka w17) played on ICC, which actually created the variant because they were unable to implement the free ICSes' Suicide chess rules. The goal in both games is to lose all of your pieces, although in Losers Chess, you can also win by getting checkmated.
Kamikaze chess
- A player wins by losing all his pieces, or by checkmating the opponent.
- The king has royal powers, and removing check takes precedence over capturing.
- Players must lose their king last. Players must not move into check until they have only the king left.
- Pawns promote only to queens.
Notes
- Pritchard (2007), p. 86
References
- Pritchard, D. B. (2000). "Losing Chess". Popular Chess Variants. B.T. Batsford Ltd. pp. 32–38. ISBN 0-7134-8578-7.
- Pritchard, D. B. (2007). "Playing to lose". The Classified Encyclopedia of Chess Variants. John Beasley. pp. 85–89. ISBN 978-0-9555168-0-1.
- Pritchard, D. B. (1994). "Losing Chess". The Encyclopedia of Chess Variants. Games & Puzzles Publications. pp. 176–79. ISBN 0-9524142-0-1.
External links
- Losing Chess by Hans Bodlaender, The Chess Variant Pages
- The Losing Chess Pages Stan Goldovski's website
- Suicide Chess Review by Vladica Andrejić
- Losing Chess by Fabrice Liardet Template:Language icon
- Nilatac's opening book Suicide chess book browser
- Play or download
- Grand Games play Antichess online
- Gambiter play Suicide and Losers variants online
- "KPanta". Freecode. AntiChess for Linux
- Suicide Chess Nettogrof site
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