⚡
+2500 ELO only
Every line comes exclusively from elite Grandmaster games. No club players, no online blitz noise.
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Win & Draw moves only
Statistically non-losing lines. Every move in the tree has been played successfully at GM level.
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Transposition-free
Every line is unique. No repeated positions from different move orders. Clean for spaced repetition.
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Frequency-based
Only responses above 5% frequency are included. You learn what actually matters at the top level.
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Two file formats
Tree PGN for studying the full structure. List PGN with each line as a separate game for Guess the Move.
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Works everywhere
Compatible with Lichess Study, Chess PGN Master (Android), SCID, Lucas Chess, and any PGN viewer.