We value your privacy

We use essential cookies to keep you logged in securely. We also use functional cookies to remember your game preferences, sound volume, and local progress. You can read more in our Privacy Policy.

Game analysis

See what really happened in your game.

Stockfish goes through every move and tells you, in plain English, what each one did: the piece you won, the one you left hanging, the moment it all turned.

Free accounts get 3 analyses a day. Pro is unlimited.

Chessy's analyser on a game between Reckless and Stockfish 18: the move g2 labelled Best, the coach saying it forces mate in 6, the opening named as the Italian Game: Jerome Gambit, and the evaluation graph.
A real analysis: Reckless 0.10 beating Stockfish 18.
What a move looks like
"This takes the knight on e2, but leaves the queen hanging."
BrilliantBestExcellentGoodBookInaccuracyMistakeMissBlunderForced

Every move labelled

From brilliant to blunder, so you can see at a glance where the game was won and lost.

A sentence for every move

Plain English about what the move did, written from the board position, not by an AI.

Accuracy for both players

Weighted so that moves in an already-lost position do not flatter anyone.

See where it turned

An evaluation bar and a graph of the whole game show the moment it swung.

Your Chess.com games too

Paste any PGN, open a game you played here, or look up a Chess.com username and pick a game.

Stockfish, in your browser

Stockfish 19 runs on your own device. Nothing to install, no queue.

A game analysed once opens instantly the next time.

Analyse your first game