Feature
Blown wins: the games you let slip
By Atulya GuptaLosing winning positions is one of the biggest hidden point-leaks in chess, and it is invisible until you count it. Audit Chess finds every game where you had a decisive, winning advantage and then lost - and buckets each one by where it went wrong: opening, middlegame or endgame. That tells you whether you crumble under time pressure in the endgame, relax in winning middlegames, or something else. Each blown win can be replayed as a puzzle from the moment you were winning, so you can practise converting instead of just regretting. Built from your Lichess and Chess.com games. Free, no account, on your device.
Count the wins you threw away
Audit Chess detects the point in each lost game where you were clearly winning, then flags the collapse. Seeing how many games that is - and which phase they die in - reframes "I get unlucky" as a fixable pattern.
Split by when you were winning
Each blown win is filed under the phase in which you first became clearly winning: the opening (move 10 or earlier), the middlegame, or the endgame. The pattern tells you what to work on. Early blown wins usually mean you win material out of the opening but lose the thread; middlegame ones point to calculation and blunder-checking; endgame ones mean conversion technique is leaking points.
Only games you actually lost are counted - a winning position you converted is not a blown win - and a clearly winning position means you were ahead by roughly two and a half pawns or more according to the engine, checked against a reliability gate so a single noisy evaluation cannot create a false alarm.
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Frequently asked questions
Why do I keep losing winning positions in chess?+
Usually the leak is concentrated in one phase - often converting winning endgames or relaxing in winning middlegames. Audit Chess finds every blown win in your games and buckets them by phase so you can drill the exact failure.
What counts as a blown win?+
A game you lost after the engine had you clearly winning - ahead by about two and a half pawns or more - at some point. Bullet games are excluded because their evaluations are not reliable enough; blitz, rapid and classical games are all scanned.
How do I stop losing won positions?+
Simplify when ahead, check every forcing reply before you move, and slow down in the moments after you win material. Then drill the exact positions where you went wrong: Audit Chess turns those moments into puzzles, so you practise the conversion you failed rather than a generic exercise.