Comparison
Audit Chess vs Chess.com Game Review
By Atulya Gupta · UpdatedChess.com Game Review is a solid per-game tool: it walks you through one game with an accuracy score and engine comments. Audit Chess is built for the opposite scale - it analyzes your entire history at once to find the patterns across it. Both use a strong engine, and both review a single game move by move with an accuracy score and move labels - Audit Chess does it free and without a daily limit, with an engine-checked explanation of each key move. The bigger difference is scope: Audit Chess also tells you which openings keep costing you, which mistakes you repeat, which endgames you lose and which wins you throw away, then turns them into puzzles. It is free, needs no account, and runs in your browser.
Why Audit Chess is the best free chess analysis tool
- 1.Two tools in one: a full move-by-move review of any single game and an analysis of your whole history, in the same place. Most free tools only review one game at a time.
- 2.Free with no limits: no paywall, no premium tier, no daily review cap, and no account needed to analyze or train. Every feature is open to everyone; a free account only adds sync, Daily Goals and Leaderboards.
- 3.Chess.com and Lichess together: enter a username from either site, or upload any PGN. No exporting, no switching tools.
- 4.Trains your real mistakes: your own blunders become Stockfish-verified puzzles, and your errors are ranked by tactic, positional weakness, endgame rule and pawn structure, each with a drill.
- 5.Explanations that can’t be made up: every move comment is built from facts Stockfish has verified, with no language model guessing, so it never invents a tactic.
- 6.Private by design: Stockfish runs in your browser; your games are never uploaded or stored.
- 7.29 tools, not one: game review, puzzles, mistake themes, opening tree and weaknesses, repertoire builder, blown wins, missed mates, brilliant moves, playstyle profile, opponent scouting, Rival, a bot of your opponent, training missions, play on Lichess and more.
Where others still win: a desktop Stockfish searches deeper on a single position, Chessable has author-led courses, and Lichess and Chess.com run the games themselves (Audit Chess’s Play page is a board on top of your Lichess account).
Everything in Audit Chess (29 free tools)
One Lichess or Chess.com username (or a PGN file) unlocks all of it. Free, unlimited, no account, and the analysis runs in your browser.
- Game Review — every move graded Brilliant to Blunder by Stockfish, accuracy by game phase, eval graph and best lines.
- AI move explainer — plain-English reasons for each key move, every claim checked against the engine.
- Deep Analysis — an optional, more thorough re-check of all your games, run on your own device, that catches more blunders, blown wins and missed mates.
- Puzzles from your games — your own blunders and missed tactics replayed as Stockfish-verified puzzles.
- Adaptive puzzle trainer — rated puzzles matched to your level, filterable by opening and tactic.
- Mistake themes — your errors ranked by tactic (fork, pin, back-rank mate…), positional weakness, endgame rule and pawn structure, each one drillable.
- Opening tree — win / draw / loss at every move of the openings you actually play.
- Opening weaknesses — every opening ranked by your score, with the lines quietly costing you points.
- Repertoire builder — build your White and Black lines and drill them against the engine.
- Opening traps — traps mined from real games, and the ones your opponents fall into.
- Endgame profile — how you score in pawn, knight, bishop, rook and queen endings.
- Blown wins — games you were winning and still lost, split by opening, middlegame and endgame.
- Missed mates — forced mates you missed and mates you allowed.
- Brilliant moves — every brilliant (!!) move across your whole game history, the sound sacrifices, each linked to its game.
- Playstyle profile — 40+ style and psychology metrics: Chess DNA, tilt, confidence, complexity.
- Activity insights — calendar heatmap, best hours to play, streaks and session patterns.
- Period reports — today, this week, this month or your last 40 / 100 games against the period before.
- Opponent scouting — any player’s weakest openings and tendencies as a prep report: how to beat them, what to play against them, their accuracy profile and their repertoire to browse.
- Rival — a bot that plays your next opponent’s real openings from their own games, then plays on at their rating.
- Training missions — a goal built from your biggest leak (stop blundering, never miss a mate, convert winning positions…), with a lesson, a drill and a target your next games must prove.
- Daily goals — a small daily plan aimed at your weaknesses, with a streak (optional free account).
- Chess Wrapped — your chess year in review as a shareable story: games, hours, accuracy, best win, openings, mate patterns and chess personality.
- Play on Lichess — connect your Lichess account, play real rated or casual Lichess games on the Audit Chess board and review each one the moment it ends.
- Game links — put auditchess.com in front of any Chess.com or Lichess game link (auditchess.com/game/live/<id>, auditchess.com/lichess/<id>) to open it straight in Game Review.
- Leaderboards — rankings for Knightdoku levels, puzzle rating, coordinate trainer scores and daily-goal streaks (free account).
- Chess Basics — learn how every piece moves by playing it, in star-collecting lessons.
- Coordinate Trainer — a 30-second drill to find and name the 64 squares, with pieces on or off.
- Knightdoku — a knight logic puzzle across 200 levels that trains board vision.
- Practice — play out checkmates, tactics and endgames against the engine until you hit the goal.
Where each one is stronger
Chess.com Game Review is deeply integrated, polished, and ideal for a guided walkthrough of one game - with the caveat that full Game Review is a paid feature. Audit Chess is free and cross-platform (Lichess and Chess.com), and its whole-history view is something per-game review cannot show: your worst openings ranked, repeated blunders, blown wins, endgame gaps and a playstyle profile.
Many players keep playing on Chess.com and use Audit Chess for the review: a free move-by-move review of any game, plus the whole-history view that decides which games and themes are worth studying in the first place.
Puzzles from your own blunders
A core Audit Chess feature with no direct Chess.com equivalent: every blunder and missed tactic from your own games becomes a Stockfish-verified puzzle. You drill your real recurring mistakes instead of generic puzzle sets.
Frequently asked questions
Is Audit Chess a free alternative to Chess.com Game Review?+
Yes. Audit Chess gives every game a free, unlimited move-by-move review - moves graded Brilliant to Blunder, accuracy by phase, an eval graph and engine-checked explanations - with no account and no daily limit. It then adds what Game Review does not have: analysis of your whole Lichess or Chess.com history and puzzles from your own blunders.
Can Audit Chess analyze my Chess.com games?+
Yes. Enter your Chess.com username and it reviews your games move by move and builds your openings, puzzles, endgame and playstyle profiles.