So Long Sucker is a board game invented in 1950 by John Forbes Nash, , Lloyd S. Shapley and Martin Shubik. It is a four-person bargaining/economic strategy game. Each player begins the game with 7 chips, and in the course of play, attempts to acquire all the other players' chips. This requires making agreements with the other players which are ultimately unenforceable. To win, players must eventually go back on such agreements. The game takes approximately 60 minutes to play.