Every mistake, explained
Not just a “??”. Each key move gets a plain-English note: why it fails, what it missed, and the move you should have played.
Import any game and get a full review in about a minute: your accuracy, the moves that changed everything, and what to play instead. Free, and actually unlimited.
Unlimited reviews · Free forever · Works on your phone
Not just a “??”. Each key move gets a plain-English note: why it fails, what it missed, and the move you should have played.
Full-strength Stockfish scores every move, then shows your accuracy and a realistic “played like” range that makes sense next to your real rating.
The evaluation graph marks the exact moves where winning became losing. Tap one and the board jumps straight there.
Other sites sell your own games back to you: one review a day, then a subscription. Our analysis runs on your device, which costs us nothing, so it costs you nothing. And your games stay on your device.
Paste a PGN or pull games straight from your Chess.com or Lichess username.
See your accuracy, the moves that turned the game, and what you should have played, all on one interactive board.
Retry your mistakes against the engine until the right idea sticks, and study the openings you actually play.