Feature
Move-by-move game review with accuracy scores
By Atulya GuptaTo review a chess game move by move, you replay each position through an engine and mark where the evaluation swings. Audit Chess does this automatically for every game in your Lichess or Chess.com history. Each game gets an accuracy score, an evaluation graph, and a label on every move - Brilliant, Great, Book, Best, Excellent, Good, Inaccuracy, Mistake, Miss or Blunder - computed with Stockfish in your browser. Instead of opening one game at a time, you see your accuracy trend across hundreds of games and can jump straight to the moments that cost you points. It is free, needs no account, and nothing is uploaded - the analysis runs on your device.
What the review shows
Every move is classified against the engine’s best line, so a single glance tells you where a game turned. The evaluation graph makes the swings visible: a cliff on the graph is the move that lost the game.
Because the whole history is analyzed together, your accuracy score becomes a trend you can actually track over weeks and openings, not a one-off number for a single game.
Why it beats reviewing one game at a time
Built-in analysis on Chess.com and Lichess is per-game. The patterns that hold you back - the same blunder in the same structure, the openings where your accuracy quietly drops - only show up across many games. Reviewing your whole history at once is how you find them.
Play out the alternatives on an interactive board
The review is not a static report. Click any move and an interactive variation board opens: play your own candidate moves and each one is graded against the engine on the spot, so you can test "what if I had played this instead?" without leaving the review.
A Best Lines panel streams Stockfish’s top continuations for the current position, deepening as you sit on it, and phase accuracy breaks your score into opening, middlegame and endgame - computed at Lichess parity - so you see which phase actually leaks points.
Plain-English explanations of the key moves
On top of the labels, Audit Chess can explain the moves that mattered in plain English - what a mistake gave up, the threat you missed, and the better idea - grounded in the same Stockfish read so the words match the eval rather than guessing.
Related features
Frequently asked questions
How do I analyze a chess game move by move?+
Enter your Lichess or Chess.com username and Audit Chess replays every game through Stockfish, labelling each move from Brilliant down to Blunder, with an accuracy score and an eval graph per game.
Can I try my own moves during the review?+
Yes. Click any move to open an interactive variation board and play your own candidate moves - each is graded against the engine instantly - while a Best Lines panel shows Stockfish’s top continuations for the position.
Does the review show accuracy by game phase?+
Yes. Alongside the overall accuracy score, the review breaks accuracy into opening, middlegame and endgame at Lichess parity, so you can see which phase costs you the most.
Is the game review free?+
Yes. Game review is free and runs in your browser with no account and no upload.