I love Go. But from a game-theoretic view it is theoretically rather trivial, as are chess, checkers, and any other game in which players with perfect information alternate moves.
The winner of a Go game is whoever more reliably predicts the ultimate result of various potential intermediate positions. The only interesting game theoretic aspects at all arise to the extent one can predict one's opponents' likely errors, or that one "knows what one doesn't know" in terms of one's own calculating ability.