The member desk for chess improvers
Stockfish reads your last 150 rated games and hands you a coach's verdict: the openings that bleed points, the phase where you blunder, the wins you let slip. Then it tells you exactly what to train, and scouts your next opponent.
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Billing via the newsletter. Cancel anytime. No password, no install.
What members get
Stockfish grades every move of your last 150 rated games, on the same blunder scale Lichess uses. Five leaks, each priced in points lost, worst first.
Every leak comes with the fix: targeted drills, and the one book worth reading for your exact weakness. Diagnosis without a prescription is just bad news.
Paste your next opponent's username before the game. Their weak openings by color, their blunder phase, whether they crack in time trouble. 30 scans a month.
Every Monday, three lines: what you played, whether your number one leak is closing, one number that moved.
Re-run your diagnosis on fresh games and see the deltas. Your endgame blunder rate is a number now; watch it drop.
Any username on any platform: playing strength estimated from results against rated opposition, never from the badge.
The diagnosis
Which openings you actually score badly in, by color. "Your worst opening as Black: Caro-Kann, 31% over 16 games."
Opening, middlegame or endgame: where your games really break. "You blunder 3x more in endgames: 4.1 per 100 moves vs 1.3."
The blunders you play in time trouble you created yourself. "42% of your blunders happen under 30 seconds."
The wins you reached and then let slip. "61 winning positions, only 42 wins. Strong players convert ~90%."
Whether you play down to weaker players and hand back points. "Against weaker players you score 63% when Elo expects 71%."
Every leak gets a price in points dropped, and your desk opens on the most expensive one. You always know what to fix first.
Before the game
Preparation from public games is standard practice at the top. Your desk does it in two minutes: steer the game into the lines where your opponent already loses.
Pricing
Membership comes with the EloLeak newsletter. One subscription unlocks the whole desk: diagnosis, coach's plan, 30 Scout scans a month, weekly reviews, re-scans, the strength estimator.
Billing runs through the newsletter platform. Cancel anytime, in one click, no questions.
Become a member · $9.99/monthFair questions
Come back here, hit Log in, and use the same email as your subscription. We email you a one-time sign-in link. No password to remember.
Try it: language models hallucinate chess analysis with total confidence. Every number here comes from Stockfish running on our servers, over your full sample. Your puzzles are your own blunders with engine-verified solutions, your tilt profile is computed over your whole history, and the desk re-checks your account every week without being asked. A chat window does none of that.
Every evaluation comes from Stockfish, the strongest open chess engine. Prose explains the numbers; it never invents them.
They are chart explorers, and good ones. Four differences. Coverage: their engine stats only count the games someone bothered to analyze; your desk runs Stockfish on every game in the sample. A verdict, not thirty charts: Insights hands you filters and lets you play data analyst; your desk ranks five leaks by the points each one costs and opens on the most expensive. A prescription: every leak maps to drills and the one book worth reading. Your opponents too: no platform tool scouts the player you face tonight, or reads your Chess.com and Lichess games in one place.
No. Both platforms publish rated games through free, official public APIs. We only need the username.
Preparing against a known opponent from their public games is what titled players do before every round. Scout does it in two minutes.
One plugged leak is worth more than a month of puzzle grinding.
Become a member · $9.99/month