The Unseizable U-Boot is a game that emphasizes skill and intelligence. The ability to see enemy movements constitute the most valuable help to gain the victory. The gambling behavior is not random, but determined by the navigation tools used according to the tactical thinking of the players. The game represents the various stages of a battle between a submarine U-BOOT and three destroyers. The submarine wins entering the Base of destroyers, after covering all six areas that comprise the board, or sinking three destroyers. Destroyers win sank the submarine or if it does not re-emerges within the set number of moves.