Analyse your own chess games and train on your mistakes

From imported game to training

Bring in your games from Lichess or Chess.com, or simply play in the app; finished games are saved for review. Stockfish walks the whole game and flags every mistake and blunder, sorted into opening, middlegame and endgame.

Up to three clear, forcing tactics you missed are suggested per game. Nothing becomes a puzzle unless you add it, and you can take it back out again.

Analyse it yourself first

An always-on evaluation bar sits beside the board, but the engine never volunteers the answer. Click through the game, ask for the best move only when you want it, and try your own ideas in a scratch variation that is never saved.

Optional human-rating context shows whether a player rated around 1100, 1500 or 1900 would have been likely to find the move you missed. It is an estimate for that position, not a verdict.

Your games stay yours

Games are only fetched from Lichess or Chess.com when you ask, and they are stored on your own machine. There is no account and no cloud sync.