Analyze my chess game
Paste your game or enter your username and press Review. The engine runs in your browser, labels every move and picks out the few moments that decided the game. Free, no sign-up, no daily limit.
How to analyze a chess game, step by step
- Go through the game once without the engine. Write down the moments you thought mattered while you were playing.
- Run the engine review. Look for the few moves where the evaluation changed the most.
- At each of those points, ask what you missed: a tactic, a threat from your opponent, or a plan.
- Compare that with the notes from step 1. See where your judgment was wrong.
- Keep one lesson and take it into the next game.
An example from a real game
Here is a real review of the Opera Game (Paris, 1858, 33 half-moves). White scores 98.2% accuracy and Black 82.8%. The engine marks 5 moves great and 4 inaccuracies. The card shows move 16, Qb8+.
Every key moment gets a sentence like the one under the board, built only from engine lines. Open the full example review.
Questions about analyzing a game
Do I need an account?
No. There is no sign-up. Paste a game or enter a username and press Review.
Can I analyze games from Lichess or Chess.com?
Yes. Paste the PGN, or enter a Lichess or Chess.com username and pick a game. Your browser asks those sites for your public games.
How many games can I analyze?
We do not count or cap your reviews. Your own device sets the pace.
What does the engine look at?
Stockfish runs in your browser. It labels every move, gives an accuracy score, and picks out the key moments of the game.