John Nash in "A Beautiful Mind". He lost a Go game, and he claimed that "this game is flawed", since he played first but lost. As a result, Nash invented the game Hex http://en.wikipedia.org/wiki/Hex_(board_game).
Well, it is basically a simple version of Go. For Nash, the most important property of Hex is that there exist a winning strategy for the first player. Actually, this fact is EQUIVALENT to the famous Brouwer fixed point theorem in analysis.
Okay, in real life, Nash plays better Go than in the film.