Free chess game analysis
Enter your Lichess or Chess.com username. In about a minute you get your accuracy, the blunders that cost you games, how your openings score — and one clear thing to train next.
How it works
- We fetch your recent public games from Lichess or Chess.com — no password, no account.
- A chess engine checks every move of your latest games right in your browser.
- You get a clear report: results, accuracy, blunders, your weakest opening and the positions where the game turned.
- Share it or train it: copy a link to your report, or sign up to turn those positions into personal puzzles.
Want to understand your results better? Read how to review your chess games.
Questions
Is the analysis really free?
Yes. Enter a Lichess or Chess.com username and get a full report for free, without creating an account. The chess engine runs in your own browser.
Which games are analysed?
Your most recent standard rated games (bullet, blitz, rapid and classical). The overview covers up to 12 games and the engine checks your latest 3 move by move.
How is accuracy calculated?
Each of your moves is compared with the engine’s evaluation before and after it. Moves that keep your winning chances score close to 100%; moves that throw them away score lower. It is ChessStride’s own measure, so it is not identical to other sites’ numbers.
Do you need my password?
Never. Only public game data is used — the same games anyone can see on your Lichess or Chess.com profile.
What should I do with the results?
Start with the training focus and your biggest turning points. If you sign up, ChessStride turns those exact positions into personal puzzles and retests them until you get them right.
Make every game a lesson
Connect your account once and ChessStride reviews every new game automatically — then trains you on your own mistakes.