ChessChampion: It's not unprogrammable. Zillions of Games has it. I think the Chess Variants site has it too, but I'm not sure of that. I and others have requested Ultima on BrainKing.
(hide) If you want to find an opponent with similar playing skills to your own look in the Ratings page of the type of game you want and find a player with a similar BKR. (pauloaguia) (show all tips)