my·blunders turns your real Lichess mistakes into chess puzzles. It pulls your recent games, finds the moves where your position actually slipped, and asks you to find what you should have played instead — so you practice the positions you get wrong, not generic puzzles someone else picked.
Enter your Lichess username — we fetch your recent public games.
Stockfish reviews each move to find the blunders. On the web that runs right in your browser, so your games never need a server to be analyzed.
One puzzle per mistake, sorted by severity, with your progress tracked across sessions.