About Oopsmate
Oopsmate reviews your chess.com and Lichess games: which moves were good, which were not, why, and what to play instead.
There is no account and no password. You enter a username, and your games and their analysis stay in this browser, on this device.
To speed up analysis, the positions of your games, not your username, are sent to Lichess cloud eval. Everything else stays on this device.
Credits and licenses
Analysis by Stockfish, free software under the GNU General Public License v3 (GPL-3.0). It ships as a separate WebAssembly file and runs in a Web Worker.
Training puzzles from the Lichess puzzle database (CC0).
Opening names from the lichess-org/chess-openings dataset (CC0).
Chess pieces by Colin M.L. Burnett (Cburnett), used under the BSD license.
The move-class icons and the app icon are our own.
Built with open-source libraries under the MIT, BSD, ISC and Apache-2.0 licenses.
Opens an email with details of your device and its engine setup and the last errors. Send it to whoever shared this app with you. You can read it first, and nothing is sent until you send it.
Report a problemNot affiliated with chess.com or Lichess.