The position to present to the player is after applying the first move to that FEN. Any move that checkmates should win the puzzle.įEN is the position before the opponent makes their move.
playing any other move would considerably worsen the player position.Īn exception is made for mates in one: there can be several. Use a chess library to convert them to SAN, for display.Īll player moves of the solution are "only moves". 2,649,613 chess puzzles, rated and tagged.ĭownload lichess_db_2 Format
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