This section needs to be updated. The reason given is: Is this list from 2010?. Please help update this article to reflect recent events or newly available information.(March 2021)
Deep Thought, an earlier version of Deep Blue, won many computer chess championships.
Deep Fritz achieved a draw in the 2002 match, "Brains in Bahrain", against Vladimir Kramnik. A variant, X3D Fritz, drew against Kasparov in 2004, and the version Deep Fritz 10 defeated the world champion Vladimir Kramnik in 2006.
Houdini (chess) Since the release of version 1.5 on 15 December 2010, it has taken the top spot in every rating list that includes it.
Hydra (chess) is a very strong machine which uses custom parallel hardware.