Is the chess AI analysis free?
Yes. ches-s.com will always be free to use for Chess.com game review and chess analysis.
Free chess AI analysis for Chess.com games
Chess.com game review.
Without the Chess.com account.
Paste any public Chess.com game URL for free chess analysis powered by Stockfish 18, AI coach explanations, move grades, accuracy scores, opening review, and blunder detection.
ches-s.com will always be free to use.
Or: when you're already looking at a finished game on chess.com, put a dash between the two s's in the address bar.
Was
chess.com/games/view/969971
Is
ches-s.com/games/view/969971
The same 10 move grades
Brilliant, Great, Best, Excellent, Good, Book, Inaccuracy, Mistake, Miss, Blunder. Same chess review vocabulary and icons too.
Stockfish 18 analysis
A real chess engine checks every position. The browser falls back to a WASM Stockfish build if the backend is busy.
AI chess coach notes
Coach lines use the FEN, engine principal variation, and played move to explain the tactical idea in plain language.
Opening and phase review
3,402 openings, phase grades, accuracy, and per-move chess analysis show where the game was won or lost.
Free Chess AI for Faster Game Review
ches-s.com is built for players searching for chess AI, chess analysis, Chess.com analysis, free chess analysis, chess engine review, AI chess coaching, and a practical chess blunder checker. It focuses on one job: turn a public Chess.com game into a readable move-by-move review without asking for a login, subscription, or browser extension.
chess AI
free chess analysis
Chess.com game review
Stockfish analysis
AI chess coach
chess blunder checker
move accuracy
opening analysis
Chess Analysis FAQ
What does the game review include?
Stockfish evaluation, move grades, best lines, accuracy, phase grades, opening names, and concise AI coach explanations.
Do I need an account?
No. Paste a public Chess.com game URL, or add the dash in ches-s.com while viewing a finished game.