Stockfish
Strong open-source chess engine
Download, documentation, technical details, and frequent questions.
- 2024-09-06: Stockfish 17
- 2024-02-24: Stockfish 16.1
- 2023-06-30: Stockfish 16
Strong
Stockfish has won the Top Chess Engine Championship and Chess.com Computer Chess Championship, and consistently ranks highly on rating lists.
Open Source
Stockfish is open source (GPLv3 license). That means you can read the code, modify it, and contribute back.
Run Anywhere
You can use Stockfish on your computer or on your iOS or Android device. So you can get world-class chess analysis, wherever you are.
