Chess AI Analyser
Free chess game analyser online - analyze chess position and moves with Stockfish 18. Powered by real AI that explains every move like a grandmaster coach.
Unlock Full Game Analysis
Analyze complete games with PGN import, get unlimited AI insights, and use the screenshot scanner to detect positions instantly.
$19.99$9.99/mo — 2K+ daily Pro users
Our Chess Tools
Analyze Chess Position Online
Our chess position analyser breaks down every move in your game. Paste your PGN and get instant feedback on each position with best move suggestions.
Chess Board Analyser
Powered by Stockfish 18, the strongest chess AI. Evaluates positions at depth 18-30 for grandmaster-level analysis on every move.
Analyze Chess Moves
See move classifications: brilliant, great, best, good, inaccuracy, mistake, and blunder. Understand exactly where you went wrong.
Chess Game Analyser
Upload games from Chess.com or Lichess. Get accuracy scores for both players and detailed move-by-move breakdown. Then play chess against computer to practice.
Free Chess Analyser
No downloads, no registration required. Analyze chess games free online directly in your browser. Also try our chess puzzles to sharpen tactics.
Chess Move Analyser
Find the best continuation for any position. Our analyser shows you what you should have played and calculates expected points lost.
How to Analyze Your Chess Games
Analyzing your chess games is the single most effective way to improve. After every game, review your moves against the computer's suggestions to find mistakes, missed tactics, and better alternatives. Our analyser uses Stockfish 18 to evaluate every position at grandmaster depth.
Simply copy your game's PGN from Chess.com (Share → PGN), Lichess (download button), or any platform and paste it above. The analyser classifies each move as brilliant, great, best, good, inaccuracy, mistake, or blunder — with accuracy scores for both players.
For quick position analysis, try our chess solver — set up any position and find the best move instantly. Want to test your skills? Take our ELO rating test or solve chess puzzles.
Frequently Asked Questions
How do I analyze a chess game?
Copy your game's PGN from Chess.com, Lichess, or any chess platform and paste it above. Our analyser will evaluate every move using Stockfish 18.
What is PGN format?
PGN (Portable Game Notation) is the standard format for recording chess games. Export from Chess.com via Share → PGN, or from Lichess via download button.
What does the accuracy score mean?
Accuracy measures how close your moves were to the best computer moves. 90%+ is excellent, 80-90% is good, below 70% needs improvement.
Is the chess analyser free?
Yes! Our chess game analyser is 100% free. Analyze unlimited games with Stockfish 18 — no account or payment required.
Can I analyze my Chess.com games?
Yes! Go to your Chess.com game, click Share → PGN, copy the text, and paste it here. Works with rapid, blitz, bullet, and daily games.
How can analysis help me improve?
Review where you made mistakes and understand why the engine's suggestion was better. Over time, you'll recognize patterns and avoid repeating errors. Learn more tips.