Game probably developed during WWII. One player takes the command of the U-Boat with a purpose to destroy the tanker. Other player takes the command of the tanker and four destroyers bound to protect the tanker that must reach the other side of the board. The convoy can move only forward when the U-Boat can also move backwards. The rules were left somewhat foggy, leaving players plenty of room to create the course of action by themselves. Game Components 1 U-Boat 1 Tanker 4 Destroyers 1 Gameboard Box containing the rules