Seeing as I like the elegant C-Code examples, this would be a perfect time to point all of you to a version of Othello written for the Internation Obfscated C Code Contest where a guy named Lievaart managed to cram a AI logrythm for Othello into 1k (1024 characters or less).
The Code
A little larger that plays a little better
The description file
Even if you don't code you should be able to at least appreciate the elegance and effort of making this happen. This is the sort of thing that inspired my sig(s).