Every one of them knows this game. He looked right at it, then he laughed and shook his head. Same trade show, I taught the game to a pretty girl in the booth across from mine. She got me twice. I have informally asked a few guys from other subs in Pearl Harbor about this game, and they all play it underway.
Nobody knows the name of the game.
Nobody knows its origin. I have shown this game to people at my civilian employer. There are about 15 guys that play it regularly. Some don't even speak English. I want to know how many boats played this game, and how many did not.