How to analyze Lichess games with ChessIQ
No Lichess account login required. Just your public username.
Enter your Lichess username
Go to Review Games and type your Lichess username. ChessIQ fetches your recent games from the Lichess public API.
Select games to analyze
Choose which games to review—by time control, date, or result. Import as many as you like, with no daily cap.
Stockfish analyzes locally
Stockfish 18 runs in your browser via WebAssembly. No game data is uploaded—analysis happens entirely on your device.
Review results and train
Study move-by-move analysis, review accuracy scores, and automatically generate blunder puzzles from your mistakes.
Why use ChessIQ for Lichess analysis
Stockfish 18 – same engine as Lichess
Lichess uses Stockfish for its own analysis. ChessIQ uses the same engine, running locally in your browser at depths up to 50—no server delay.
Your games never leave your device
Lichess games are fetched from the public API, then analyzed entirely on your device. No PGN is uploaded to ChessIQ servers. Ever.
Offline after first load
Once your games are imported and analyzed, you can review them, study your blunders, and check statistics without internet.
Cross-platform statistics
If you play on both Lichess and Chess.com, ChessIQ's statistics dashboard combines your game history from both platforms for a complete picture.
Common questions about Lichess analysis
How does ChessIQ fetch my Lichess games?
ChessIQ uses the Lichess public API (lichess.org/api) to fetch your recent games by username. No Lichess account login or OAuth is required—only your public username.
Is ChessIQ affiliated with Lichess?
No. ChessIQ is an independent tool that uses the Lichess public API. Lichess is open-source and its API is freely available. We're not affiliated with or endorsed by Lichess.
Why not just use Lichess's built-in analysis?
Lichess has excellent built-in analysis, and it's free. ChessIQ adds value in different ways: it runs analysis offline, generates custom blunder puzzles from your mistakes, provides a cross-platform statistics dashboard, and includes a Nemesis bot that plays your own worst openings against you.
How accurate is ChessIQ compared to Lichess analysis?
Both use Stockfish. ChessIQ uses the WebAssembly single-threaded build, while Lichess runs multi-threaded Stockfish with NNUE on their servers. Lichess's server analysis may be slightly more precise at equivalent depths, but ChessIQ's local analysis is faster to start and has no queue.