Stockfish is one of the strongest chess engines in the world. It is also much stronger than the best human chess grandmasters.
View CCRL rating listUnlike most chess engines, Stockfish is open source (GPL license). That means you can read the code, modify it, contribute back, and even use it in your own projects.
Stockfish on GitHubYou can use Stockfish on your computer running Windows, OS X, or Linux, or on your iOS or Android device. So you can get world-class chess analysis, wherever you are.
View all downloadsStockfish is licensed under the GPL license. Website © 2010- Daylen Yang. Stockfish icon by Klein Maetschke.