Hit F5 or click on the green light in the toolbar to have the computer randomly place on the board 11 of the 12 non-pawn, non-knight pieces of a standard chess set.
 
Your goal is to move the knights from the bottom row to the top row.
You may move any piece on the board according to the rules of standard chess, except there is no capturing, no castling, and no check.
 
The game is on the Chess Variants Pages at http://www.chessvariants.com/solitaire.dir/hippodrome.html.