Tron is a fun little game of boxing out the opponent and avoiding crashing into a wall first. The rules are simple so the barrier to entry into this contest is low. Thanks to aeruiqe who made to Common Lisp starter pack it took as little as a few hours to get a very bare bones algorithm going. It's doing surprisingly well: it is number 23 on the leaderboard at the moment with 43 wins, 2 losses and 9 draws.