Comparison
Audit Chess vs Lichess analysis
By Atulya Gupta · UpdatedLichess analysis is excellent and free: per-game computer analysis, an opening explorer, and study tools. Audit Chess is not a replacement for it - it is a layer on top of your whole history. Lichess analyzes the game you are looking at; Audit Chess analyzes all of them together and reports the patterns: your worst openings by result, the mistakes you repeat, the winning positions you blow, your endgame and playstyle profiles, and puzzles built from your own blunders. It also scouts opponents. Both are free and both respect you - Audit Chess runs entirely in your browser with no account. Use Lichess to study a position deeply; use Audit Chess to know which positions and openings deserve that study.
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.
What Audit Chess adds
Lichess gives you world-class per-game tools. Audit Chess adds the cross-game view: everything ranked by your real results, repeated-mistake detection, blown-win detection, an endgame profile, a playstyle profile, and puzzles generated from your own games and verified by Stockfish.
It also works across both platforms, so if you play on Lichess and Chess.com you can see one combined picture per platform.
Where Lichess analysis is the better tool
For studying one position in depth, Lichess is hard to beat. Its analysis board lets you explore variations freely, its opening explorer draws on millions of master and online games, and Studies let you annotate and share lines with a coach or friends.
Lichess Insights also offers flexible charts of your own statistics if you enjoy building your own queries. Audit Chess does not try to replace any of this, and many players use both side by side.
How to use them together
Run your Lichess username through Audit Chess to find what deserves attention: the opening that loses you the most points, the endgame type you keep misplaying, or the tactic you keep missing. Then open those exact games or positions on Lichess and study them properly.
Because Audit Chess runs Stockfish in your browser and reads only your public games, there is nothing to connect or authorize, and nothing is posted to your Lichess account.
Frequently asked questions
Does Audit Chess work with Lichess?+
Yes. Enter your Lichess username and it reviews your games and builds your opening tree, puzzles, endgame and playstyle profiles - free, in your browser.
Is Audit Chess more accurate than Lichess analysis?+
Both use Stockfish, so move-by-move evaluations are comparable, and both review a single game for free. The difference is what comes after: Audit Chess adds Brilliant-to-Blunder move labels, engine-checked explanations, and an analysis of your whole history that finds your repeated patterns and turns them into puzzles.
Do I need a Lichess account connection or API token?+
No. Audit Chess reads your public Lichess games by username only. There is no login, no OAuth connection and no token to share.