For those who like the Knight's Tour, here is a pretty cool site that deals with it...
http://web.telia.com/~u85905224/knight/eknight.htm
For those who don't know what it is, The Knight's Tour is a chess problem which asks you to place a single Knight anywhere on a chessboard. Now you have to move the Knight in the normal way around the board so that the piece touches every square once only.