I was playing Connect 4 the other day, and I started to wonder how you could fill the board entirely without connecting 4. I haven't tackled the problem so I don't know if it's of general interest at all, or if it yields any interesting results...but I thought I'd share it with you all. Perhaps you can think of more interesting problems with this game (since, now that I think about it, I'm basically asking all the ways you can fill a slightly larger tic-tac-toe board)? For those who don't know what connect 4 is: http://www.oldeducator.com/connect4.jpg [Broken] 2 players take turns dropping their checkers into the board. The goal is to make 4 of your pieces connect in any direction (vertically, horizontally, diagonally).