Your opening repertoire
Own the opening.
Enjoy the game.
Learn the ideas, remember the moves, then play on against Stockfish. One focused line at a time.
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Opening bookReplies automatically
Book
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YouPlaying White
Built for every rating
A repertoire that grows with you.
01FoundationsDevelop, control, castle
02StructuresPlans behind the moves
03PrecisionTest without guidance