Joust by Todd M. Lewis

If you know the legal moves a knight can make in chess, the game will
be much easier for you. If you DON'T know, think L shape in three moves.
Your L can be sideways or upside down. UNLIKE real chess, you don't
capture a piece by landing on the square that has the enemy's knight.
Nope! When the knights move, where they land turns color. No knight
may land on a colored square. The game is over when either the computer-
controlled knight or you has no way to move without landing on a colored
square. If the first level is too easy, pick a tougher one.
== Notes by Rick