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Shogi Chess AI

Free chess game review, move by move

Pick one of your recent games, paste moves, or photograph a board — Stockfish checks every move, shows who was ahead and where the game turned, and turns your mistakes into positions you can retry.

Review a game now

How it works

  1. Choose a game

    Link your Chess.com or Lichess username, paste a PGN, or open a .pgn file.

  2. Stockfish checks every move

    Each move is graded — best, good, inaccuracy, mistake or blunder — with accuracy for both sides and a “who was ahead” graph.

  3. Learn from it

    Step through the game, see the engine’s best ideas, retry your mistakes, and ask for an explanation in your language.

What you get

  • Works with Chess.com and Lichess games, pasted moves and PGN files
  • Accuracy, best moves, mistakes and blunders for both sides
  • Your mistakes become drills you can practise later
  • Share a review with a link — it opens nicely in WhatsApp

Questions

Is the game review free?
Yes. Engine reviews have a daily allowance (10 a day as a guest, 40 when signed in); there is no charge.
Which engine checks my games?
Stockfish 17.1 on our server for full reviews. Quick checks in the Classroom can run Stockfish in your own browser.
Do I need to give my Chess.com or Lichess password?
No. We only read your public games using your username.

Free to use — no sign-up needed to start.

Review a game now