Audit Chess

Feature

Find the openings costing you points

By

Free, no account. Your games are analyzed in your browser.

The fastest way to find your chess weaknesses is to rank everything you play by result. Audit Chess lists every opening in your history, sorted by score, so the lines quietly costing you points rise to the top. Instead of guessing which openings hurt you, you see them ranked - with the games behind each one - and can drill exactly those. It goes beyond openings too: the same analysis surfaces the mistakes you repeat, your weakest endgames, and the winning positions you throw away. Paste your Lichess or Chess.com username to get the full breakdown. Free, no account, runs on your device.

Every opening, ranked by result

A sortable table shows every opening you play with its score, so "I think I’m bad at the Caro-Kann" becomes a fact you can act on. Sort by worst result and you have your study list.

Weaknesses beyond the opening

Openings are only one source of lost points. Audit Chess also flags recurring middlegame blunders, weak endgame types and blown winning positions, so "find my weaknesses" covers the whole game, not just move one.

Where to look for each kind of weakness

Each weakness shows up in a different part of the analysis. Work down this list and you have checked every phase of the game:

WeaknessWhere Audit Chess shows it
Openings that lose pointsAll Openings ranked by score, and the opening tree branch where your result drops
Repeated tactical mistakesThemes tab: your mistakes ranked by tactical, positional and endgame theme
Throwing away won gamesBlown wins, split by the phase you were winning in
Missed or allowed checkmatesMissed mates
Weak endgamesEndgame profile by endgame type
Style blind spotsPlaystyle profile and risk profile

A simple routine to fix them

Pick one weakness at a time - the one costing the most points. For an opening, study the branch where your score drops and prepare one better reply. For a tactical theme or a blunder pattern, drill the puzzles built from those exact positions. Then play a few weeks of games and re-run the analysis: if the weakness has moved down the list, move to the next one.

Use enough games. A handful of games can make a weakness look bigger or smaller than it is; a few hundred recent games give a much steadier picture.

Related features

Frequently asked questions

How do I find my weaknesses in chess?+

Rank your own games by result. Audit Chess sorts every opening you play by score, flags repeated mistakes, weak endgames and blown wins, and turns them into puzzles to drill.

How do I find my worst openings?+

Audit Chess lists every opening in your Lichess or Chess.com history sorted by score, so your worst-performing lines are at the top.

How many games do I need to find my chess weaknesses?+

More is better. A few hundred recent games is a good base: enough for patterns to stand out from luck, recent enough to reflect how you play now.

Is there a free tool to find my chess weaknesses?+

Yes. Audit Chess is free and needs no account: enter your Lichess or Chess.com username and it ranks your openings, sorts your mistakes by theme and flags blown wins and weak endgames, all in your browser.

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