Powerful open source chess engineSee All Downloads →
Like most modern chess engines, Stockfish plays better and faster than humans. Stockfish recently took 2nd place in the 2nd season of the nTCEC tournament. And it's the most powerful open source chess engine in the world.
We provide binaries for major desktop operating systems, including for Windows and Mac OS X. And you can always compile Stockfish from source for any platform you want.
Want to do some chess analysis on the go? There are a number of apps available for the iPhone and Android platforms. Check them out.