bunkhouse.. its a 4 player game where you can place captured pieces back onto your board after your partner captures them from his enemy. two simultaneous gmaes where 2 teamates one playing white the other playing black play two other people in chess./.. there are very specific rules but icant remember them exactly. So if One tema is A-B and the other is C-D. A plays C and A captures a rook he can give that piece to his partner to place onto his board giving him 3 rooks. etc..etc..