Antichess
Chess family
Goal is to lose all pieces.
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Games & rules
20 ready11 guides15 buildingBook & tactics10,20610,000 tactics
Cached openings and tactical patterns are checked before live search.
Move labels10,2065 sources indexed
Compact records rank candidate moves before the bot spends time searching.
Legend3900-4000 Elobenchmark ceiling
3900-4000 is above Stockfish's exposed UCI_Elo ceiling. The live engine is capped at UCI_Elo 3190, then AllChess adds deeper search, cache-first labels, and stricter anti-blunder checks; it is a benchmark tier, not a certified human rating.
Release gate20ready / 0 gated
AllChess marks a bot/game ready only after native rules, legal bot moves, review, persistence, and E2E fixtures pass. Gated variants stay as guide-first previews until those gates pass.
Showing 13 of 46 games
Atomic Chess
Chess family
Captures explode adjacent non-pawn pieces.
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In progress
Bughouse
Chess family
Two players form a team.
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In progress
Chaturanga / Chaturanga / चतुरङ्ग
Chess family
The minister moves one square diagonally and the elephant jumps exactly two squares diagonally.
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Chess960 / Fischer Random
Chess family
Back rank starts randomized.
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Classic Chess
Chess family
Move pieces by FIDE rules.
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Crazyhouse
Chess family
Normal chess movement, check, checkmate, promotion, and castling rules apply.
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Four-player Chess
Chess family
Four armies start on an extended board.
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In progress
Horde
Chess family
White plays a pawn horde; black has a normal army.
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King of the Hill
Chess family
Normal chess rules apply.
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Racing Kings
Chess family
Each player has a standard set of pieces with no pawns.
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Shatranj / Shatranj / شطرنج
Chess family
The ferz moves one square diagonally and the alfil jumps exactly two squares diagonally.
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Three-check
Chess family
Normal chess rules apply.
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