ChessPrepChessPrep

1. d4 Nf6 2. c4 e6 3. g3

Your chess workspace.

Build opening files, train your lines, and find prep when you need it.

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Built by GMs for players serious about getting better.

Knowledge Map

See what you actually know. Every position in your repertoire — mastered, shaky, or forgotten.

34%
Mastered
22%
Shaky
8%
Forgotten
36%
Untested

Built for players 1800+ who want to stop relying on vibes.

Serious opening prep, Lichess-style.

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Opening of the day

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Catalan Opening

1. d4 Nf6 2. c4 e6 3. g3

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Train

Upload a PGN. Drill your lines on the board. Mistakes come back until they stick.

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Space

Your games, opening files, and positions — import from Lichess or Chess.com.

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Knowledge Map

See what you know, what's shaky, and what you've forgotten — across your whole repertoire.

ChessPrep — built by GMs, for players who prepare.