White to mate in 549 (Prompt: there is a knight underpromotion on the 6th move). This is the longest possible forced mate in 7 or less pieces endgames. It was calculated by
White to move and force mate in 546 moves. The position is found in the Lomonosov 7-piece tablebase. : r/ChessPuzzles
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White to mate in 549 - Longest 7-piece forced mate sequence : r/chess
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White to move and force mate in 546 moves. The position is found in the Lomonosov 7-piece tablebase. : r/ChessPuzzles
White to move and force mate in 546 moves. The position is found in the Lomonosov 7-piece tablebase. : r/ChessPuzzles
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Cliff Pickover on X: "A "mate-in-546" position, which with perfect play is a forced checkmate in 546 moves. https://t.co/XNjNTbhnuk https://t.co/syvblVv12w" / X
White to move and force mate in 546 moves. The position is found in the Lomonosov 7-piece tablebase. : r/ChessPuzzles
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