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Accuracy and move-by-move review
Coach explains every move
Fair play: no help in games against people
1Your best replyNf6+0.3
!?OpeningItalian Game
Play, review and train
Your finished games from both sites, newest first. Tap one to review it. Games still in progress stay locked until they end.
Play on Lichess, right here
Real games against real people, rated or casual. No hints during the game: that's Lichess's rule and ours. When it ends, review it here in one tap.
Play on Chess.com
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Who is ahead over the game. Dots are your slips. Tap to jump.
Key moments
Keys: left and right arrows step through moves. J and K jump between key moments.
Game review
How scores work
Move labels
Each move is compared with the engine's best move. The label depends on how much of your winning chance the move gave away: a small slip is an inaccuracy, a bigger one a mistake, and a game-changing one a blunder. A miss means you passed up a chance after your opponent erred. Great and brilliant moves are rare: the only good move, or a sacrifice that works.
Accuracy
A 0 to 100 score for how close your moves were to the best ones. It uses the same formula Lichess publishes, so numbers are comparable with Lichess.
Rough rating
An estimate of the strength your moves showed in this one game. It is a guide, not an official rating, and short games swing it a lot.
Review depth
Fast checks each position briefly. Balanced is a good default. Deep takes a few times longer and is the most reliable. Every flagged move is checked a second time at higher depth before it is labelled. All analysis runs on your device.