Every American checkers (English draughts) position with four pieces or fewer, solved exactly: 6,408,836 positions with win/loss/draw and the exact distance to the end. 1.8 MB, CC BY 4.0, with a dependency-free Python reader.
open-data dataset checkers draughts game-ai tablebase combinatorial-game-theory retrograde-analysis solved-games endgame-tablebase
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Updated
Sep 27, 2026 - Python