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Updated by Ethan Blaze on Sep 12, 2016
Headline for Best Free Chess Engines - Stronger than any human!
Ethan Blaze Ethan Blaze
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Best Free Chess Engines - Stronger than any human!

Here's a list of where to download the best free chess engines. All of them are very strong, so watch out!


Stockfish Chess

Stockfish is a powerful and open source chess engine.

Fire chess engine

Fire 4.0 chess engine download


GullChess download.

Home website for houdini chess engines

Free version - Houdini 1.5a
Commercial Version - Houdini 4

Rybka - for the serious chess player.

Rybka is a UCI chess engine programmed by International Master Vasik Rajlich. Rybka is the chess engine being used for analysis by most top grandmasters. Garry Kasparov on Rybka: 'Rybka is a phenomenal improvement. Rybka is really good. Really good.' Grandmaster Larry Kaufman is part of the Rybka team and helped improving Rybka's evaluation algorithms.

Free UCI-Compatible Chess Programs for Stockfish Engine

You need a uci-compatible chess program to run these chess engines. You can find out more about chess engines and how they interact at this link!