Chess game review
A game review is the report you get after a game: how accurate each side was, which moves cost the most, and what should have been played instead. Here it is free, unlimited, and for games from anywhere.
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What a game review actually is
A review takes a finished game and walks it through a chess engine one position at a time. In every position the engine says what it would have played and how good the position is; the difference between that and what was actually played is how much the move cost. Collect those costs across the game and you get the two things a review is really for: a per-move label, and an accuracy figure for each side.
It is the fastest way to improve without a coach, because it points at your own games rather than at generic advice. The moves you keep losing points on are the ones worth studying.
What this review gives you
- Accuracy and a performance rating for White and Black, from how much each move gave away — see how accuracy is calculated.
- A label on every move: brilliant, only move, best, excellent, good, inaccuracy, mistake, blunder. The exact thresholds are published.
- The engine's move and its line in every position, so a mistake comes with the answer attached rather than just a verdict.
- An evaluation graph you can click, which takes you straight to the moment the game changed instead of stepping through forty quiet moves to find it.
- A board you can play on from any position in the game — try the move you wanted to play and watch what the engine thinks of it.
Any game, from anywhere
Paste a Chess.com game link, a Lichess game link, or the PGN from any site. You can also search a Chess.com username and pick from recent games. For Chess.com games there is a shortcut: type rv in front of chess.com in the address — chess.com/game/live/12345678 becomes rvchess.com/game/live/12345678 — and the review opens on its own.
Free, and not a trial
Most review tools run their engine on a server, so each review costs them processor time — hence the daily cap and the subscription. Stockfish 18 here is compiled to WebAssembly and runs on your own machine, so the tenth review costs exactly what the first did. No account, no card, and no daily limit.
How to get the most out of one
Do not read a review move by move from the start — the opening is rarely where the game was decided. Go to the largest drop on the graph first and understand that one position properly. There is a fuller method in how to review a chess game.