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Free game analysis
Stockfish analyzes the game: every move gets an evaluation, and every position shows the best move. No subscription, no game limit.
free · unlimited
games imported·in the last hour·games today·games analyzed·analyzed today·top rating today·puzzles solved
Play against the engine
The engine plays at the level you pick and analyzes the game with you right after.
level
color
time
from the desk
What to read between games
from the library
Recent master games
46th FIDE Chess Olympiad Samarkand 2026 | Open | Matches 1-122026
Leko, Peter 2676
Erigaisi Arjun 2759
0-1
Ruy Lopez (C64)
46th FIDE Chess Olympiad Samarkand 2026 | Open | Matches 1-122026
Ivanchuk, Vasyl 2630
Sindarov, Javokhir 2778
1/2-1/2
Ruy Lopez (C78)
46th FIDE Chess Olympiad Samarkand 2026 | Open | Matches 1-122026
Nihal Sarin 2718
Gledura, Benjamin 2620
1/2-1/2
Queen’s Pawn (A45)
46th FIDE Chess Olympiad Samarkand 2026 | Open | Matches 1-122026
Praggnanandhaa R 2761
Rapport, Richard 2726
1/2-1/2
Nimzo-Indian (E44)
[ chrome extension · 0.4 mb ]
One-click analysis after every game
The extension adds an analysis button to the game-over screen on Chess.com and Lichess.
Install Extensionchrome · edge · brave
Oct 6, 2026View all updates →
What humans play, an opening book and full Stockfish
Pro gets two new blocks on the analysis panel: an opening book and the “What humans play” table. Analysis settings now offer the full Stockfish.
New
Turn your game into a video
Free — download the MP4 and post to TikTok, Reels, or YouTube Shorts.
See examples
Works with any Chess.com, Lichess, or PGN game.
features
Why chess.rodeo.
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Analysis in your browser
Stockfish 18 runs on your computer at depth 15. Positions already in our database arrive evaluated. Pro goes up to depth 22 or runs the analysis on our server.
depth 15 · Pro up to 22
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A label on every move
Every move gets one of ten labels: book, brilliant, great, best, excellent, good, inaccuracy, mistake, miss, blunder.
10 labels
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Game Insights
Rating, results by time control and opening, how your games end. From analyzed games: your worst blunders and missed brilliant moves.
across all your games
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Accuracy by the Lichess formula
We compute accuracy for both players with the same formula Lichess uses.
Lichess-compatible
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Opening detection
We name the opening by the longest line your moves match in an ECO catalog of more than 3,000.
eco · 3,000+
frequently / asked
Frequently asked
01
Is chess.rodeo free?
Yes. Game analysis is free, with no daily limits: import from Chess.com and Lichess or upload a PGN. Pro adds auto-import, Study Moments, Opening Mistakes and the Opening Explorer.
02
Which chess engine do you use?
Stockfish 18. Free analysis runs in your browser at depth 15. Pro can raise it to 22 or run the analysis on our server. Many positions are already evaluated: we took those evaluations from the open Lichess database.
03
How is accuracy calculated?
We use the same formula as Lichess. The centipawn loss of each move is converted into a win probability, then averaged across every move. The result is a percentage reflecting how close your moves are to the engine’s best lines.
04
Can I analyze games from any platform?
Directly from Chess.com and Lichess by username. For other platforms, export your games as PGN files and upload them here. We support multi-game PGN files.
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What does Game Insights show?
Your rating, results by time control and opening, and how your games end. For analyzed games it also lists your worst blunders, missed brilliant moves and mistakes by game phase. Pro adds Study Moments, Opening Mistakes and background analysis of new games.
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Is there a Chrome extension?
Yes. Install the extension and an Analyze on chess.rodeo button appears on the game-over screen on Chess.com and lichess.org. It imports the game and opens its analysis.
still have questions? — contact support
Start with one game.
No account needed.