There are several computer programs available which play Hex.
- Six The currently strongest Hex program, by Gábor Melis, running on Linux or Unix).
- Hexy The second strongest program available, by Vadim Anshelevich, running on Microsoft Windows. This site also has a interesting paper on aspects of the algorithm used.
The International Computer Games Association also has some information on Hex. They organize an annual computer olympiad, which also covers Hex. For example, Six by won the gold medal of the 8th Computer Olympiad in Graz, while Hexy won the gold medal of the 5th Computer Olympiad in London, which appears to be the first computer Hex tournament ever hold.