grenv: But we were talking mainly about go, You did not mentioned Backgammon case before... Also, if someone is new to the game he will like to play it until end to learn more/understand whats happening. In the meantime You will sit next to Your comp and yell 'why he does not resign', yes?

And about gomoku, yes thats true, this is probably reason why players play even when opponen thinks that he won.