The subject of this article:
Big Sam (or simply Sam) is the leader of a tribe of cannibals in the New Guinea island into which Forrest Gump's space mission crashes. He is Yale-educated and pokes fun at Forrest's brief stint at Harvard University.
Big Sam reveals himself to be very good at chess and teaches Forrest to play. Forrest quickly shows a natural talent, however, which becomes useful when Sam hints that Forrest will be eaten as soon as he loses a game of chess.