Analyze your game

Paste or upload a PGN. Stockfish checks every move and shows you where the game was decided.

Server analysis Beta A quick analysis on our server, with explanations of the mistakes and the good moves (a few minutes). Experimental - the server is not always available; the in-browser analysis is always available. For a deeper analysis with your own settings - the ChessPM program. Your level: Comments: 0 of 1 server analyses used in the last 24 hours. Analyze in my browser Available now Instant, no queue and no daily limit. Runs Stockfish on your own device (a few seconds to a minute, depending on depth and game length). Your game is not sent to our server and the result is not saved. Depth:

See a sample analysis

Daily server-analysis limit reached. The in-browser analysis has no limit - choose Analyze in my browser above. Log in or register for more server analyses. The ChessPM desktop software analyzes without limits, deeper and with your own settings - download the free trial.

Good to know

One game per analysis, up to 100,000 characters.
The in-browser analysis has no limit.
Server analysis (beta): 1 game per 24 hours for your account - log in for more.
Your game and its analysis are stored on our server for 7 days and then deleted. Keep the link of the result page to come back to it.
Only the PGN you submit is stored - no personal details are needed.

Want deeper analysis, opening repertoire and training from your mistakes? See the ChessPM desktop software.