Stockfish 12

Strong open source chess engine

September 2, 2020: Stockfish 12 released. This version of Stockfish plays significantly stronger than any of its predecessors. In a match against Stockfish 11, Stockfish 12 will typically win at least ten times more game pairs than it loses.
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Powerful

Stockfish is one of the strongest chess engines in the world. It is also much stronger than the best human chess grandmasters.

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Open Source

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 GitHub

Run Anywhere

You can use Stockfish on your computer running Windows, macOS, or Linux, or on your iOS or Android device. So you can get world-class chess analysis, wherever you are.

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Stockfish is licensed under the GPL license. Website © 2010- Daylen Yang. Stockfish icon by Klein Maetschke.