Overview
Live chess analysis overlay powered by Stockfish WASM
Chee adds a real-time analysis panel to your chess games on Chess.com and Lichess.org. It runs Stockfish (one of the strongest chess engines) entirely in your browser using WebAssembly — no server, no account, no data sent anywhere. Features: • Multi-line analysis — see the top 3-5 best moves and continuations • Adjustable search depth (19-22 ply) with optional wait-for-full-depth • Eval bar showing who's winning at a glance • Arrow overlays on the board for suggested moves • Move classifications — Brilliant, Crazy, Best, Excellent, Good, Inaccuracy, Mistake, Blunder • Crazy sacrifice detection — flags material sacrifices that maintain evaluation • Blunder guard — warns when you click a piece not in any top engine line • Eval score chart — SVG area chart plotting eval over the game • PGN export — copy annotated PGN with eval comments and classification symbols • Accuracy tracker — running accuracy percentage in the status bar • Tactical insights — dashed arrows show the best move after Mistakes and Blunders • Pre-move hints — see the engine's best move or classification-based hint arrows • Opening name display — 850-entry ECO opening database • Copy FEN to clipboard with one click • Draggable panel — drag the header to reposition anywhere, double-click to reset • Resizable panel — drag the bottom-right grip to adjust width • Minimize or hide the panel when you don't need it • Catppuccin theme system — Latte, Frappé, Macchiato, Mocha, or auto-match the site theme Supported sites: • chess.com — live games (/game/*, /play/*) • chess.com — puzzles, rush, battle, learning (best move arrow, each togglable) • chess.com — daily chess (best move arrow, live-togglable) • lichess.org — all game pages All analysis runs locally in your browser. No data is collected or transmitted.
Details
- Version1.5.0
- UpdatedFebruary 26, 2026
- Offered byaqua.hong.97
- Size287KiB
- LanguagesEnglish
- Developer
Email
hong4rc@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site
