Houdini 2 UCI: The World’s strongest chess program (current CCRL rating is 3347), which supports up to 6 cores and 4 GB of hash. You can connect Houdini 2 UCI engine to ChessOK Aquarium, Fritz, ChessBase, etc.
Houdini 2 focuses on enhancing the user experience and analysis capabilities of the engine, while providing a useful improvement in strength.
At the time of writing Houdini leads all the major Computer Chess rating lists and is widely considered to be the strongest chess engine on the planet. From numerous interviews it appears that many top Grand Masters including the current chess World Champion Viswanathan Anand use and appreciate Houdini.
The Chess Club Live Facebook page phrased it like this: “If there ever was a computer descendant of the romantic players like Morphy, Anderssen, Spielmann, Marshall, Bogojulbow, Tal, Nezhmetdinov, Shirov, Morozevich it would be Houdini. Houdini is the current World number 1 chess engine and plays in a very romantic style.”
System Requirements: Houdini is written for Windows and will run on any not too ancient Windows version, 32-bit or 64-bit. On Linux you can run Houdini using Wine without any significant performance loss.