Free chess game review.
Paste a PGN or import a recent game from Lichess or Chess.com. Get accuracy for both players, your blunders and mistakes, and the best move at every turn.
Review a gameImport by username
Type your Lichess or Chess.com username and pick from your recent games.
Accuracy and errors
An accuracy score for each player plus a count of inaccuracies, mistakes and blunders.
See what you missed
Click any move to see whether it was best, and if not, the move you should have played.
How it works
- Open the Review tab.
- Paste a PGN, or fetch your recent games by username.
- Step through the game and click the graph to jump to the big moments.
Every feature is explained in the user guide.
Questions
Is game review really free?
Yes. There is no daily limit, no account and no paywall.
How long does a review take?
About a minute for a 40-move game on Standard. Quick is faster, Deep is more accurate.
How is accuracy worked out?
Each move is scored by how much winning chance it gave away, then averaged over the game. The engine guide explains it in full.
Can I review games from over the board?
Yes. Type the moves into a PGN, or play them on the analysis board and press Copy PGN.