According to this page: http://forums.appleinsider.com/archive/index.php/t-12917.html

atoms in universe: 10^77
possible moves in chess: 10^120
possible moves in Go (Japanese board game): 10^761 (!)

Does anyone here play Go?

Can you recommend:

1) Some software (preferably free, and in English or German) ?

2) A good beginner's book (English or German) ?

3) A good starting point on the WWW ?

Thanks!

I remember playing it on Zone.com once, or maybe it was Yahoo.games.com, either way it is big and you should have no problem finding a game.