To analyze a Lichess game with AI: open the game on lichess.org, click the gear icon and copy the PGN, then paste it into a free AI chess coach like Chess Masti AI. You'll get Stockfish engine evaluation and natural-language explanations for every critical move — all free, no account required, and your game data never leaves the browser for the engine step.
Find the game on Lichess
Open the game on lichess.org. Any rated, casual, or import will work — the analysis only needs the PGN.
Open the PGN export
Click the gear icon below the board, then choose "PGN" → "Copy PGN to clipboard." On mobile, the same menu lives behind the share button. You can also use the URL trick: append /pgn to the game URL to download the PGN directly.
Paste into the AI coach
Open Chess Masti's analysis board. Paste the PGN into the import field. The engine starts evaluating immediately — Stockfish runs in your browser, so the game stays on your machine for the engine step.
Read the explanations at critical moves
Click through the moves. At each significant evaluation swing, the AI coach explains what happened: the plan, the mistake, the theme you missed. The explanations are validated against the engine before they're shown, so they don't hallucinate moves.
Ask follow-up questions
If something isn't clear — "why was castling kingside bad here?" or "what's the right plan against this pawn structure?" — ask the coach in plain language. The chat holds context across the whole game.
Convert blunders into puzzles
Your worst mistakes become drills. Practice the exact positions until the pattern sticks. This is where rating points come from — explanation without practice is comfort food.
Lichess's computer analysis is excellent and free — it uses Stockfish and gives you move classifications (inaccuracy, mistake, blunder). What it doesn't do is explain anything in plain language. You see the eval numbers; the interpretation is on you.
An AI chess coach adds the interpretation layer. The engine work is comparable; the difference is whether you walk away from the review knowing why the move was bad or just that it was.
Annotate as you import.
If you remember what you were thinking on a critical move, mention it. The coach can address your actual reasoning instead of guessing.
Focus on the worst 2–3 moments.
Don't try to understand every move. The biggest evaluation swings teach the most. Ask the coach to explain them and convert them into puzzles.
Compare openings, not just tactics.
Most rated losses start in the opening or transition phase. Ask the coach to identify the move where you fell out of preparation.
Want the deeper feature walkthrough?
The free AI chess coach page covers the pipeline (Stockfish + Claude + validator), the FAQ, and a fuller comparison to other tools.
Open the free AI chess coach pageAnalyze your Lichess game now
Paste the PGN. No account required to start.