The ICGA organises competitions between programs, that need some kind of intelligence as Chess, Go, Chinese Chess, Backgammon and others. Recently games as Poker, Bridge or Pool billiard are also have competitions.
I was able to take part in (details on the specific page):

Bitmap of Computer Olympiad 2007 Amsterdam (Netherlands) 2007

Bitmap of Computer Olympiad 2006 Turin (Italy) 2006

Bitmap of Computer Olympiad 2003 Graz (Austria) 2003

Bitmap of Computer Olympiad 2002 Maastricht (Netherlands) 2002



Unfortunately I couldn't attend in Ramat Gan (Israel) in 2004 and for Taipei (Taiwan) 2005 the travelling expenses was a little too high for me.....