Marginal Maia Mentor

Maia predicts what a slightly stronger player would have played. When that is different from your move and Stockfish says it was clearly better the position becomes a flashcard for you to practice.

Runs in your browser after a one-time ~44 MB download.

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What counts as an error

Rating gap (+ points)

Min. difference (centipawns)

A move is an error when a player 200 points stronger would have played something else, and Stockfish rates their move at least 150 cp better.

More settings

Stockfish depth

Skip moves before move #

Skip bullet gamesSkip positions you’d already lost

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