Get accuracy, blunders, and the best move in every position from Stockfish 17. Swap chess.com for reviewchess.com in any saved game link — or bring a game in below.
Every move is scored against Stockfish 17's own choice, then labelled: best, excellent, good, inaccuracy, mistake, blunder, or brilliant. You get an accuracy figure and a performance rating for each side, an evaluation bar, and a graph you can click to jump straight to the moment the game swung.
Paste a PGN from any site, paste a Chess.com live, daily, or computer game link, or search a Chess.com username to pick from recent games. Replacing chess.com with reviewchess.com in a game URL opens the review directly.
Stockfish 17.1 is compiled to WebAssembly and runs inside this tab, so positions are never sent anywhere. Finished reviews are kept in your browser and restored when you reopen the same game.
Yes. Game review is free, with no account and no limit on how many games you analyse.
Replace chess.com with reviewchess.com in a saved live, daily, or computer game link, paste the link into the import box, or look the game up by Chess.com username.
Stockfish 17.1, compiled to WebAssembly. It runs inside your browser, so your positions are never sent to a server.
Yes. Paste the PGN into the import panel and the review starts on its own. Nothing is uploaded and no sign-in is required.