Go... (Score 5, Informative)

The way that chess games work is they check n ammount of moves into the future. With each iteration into the next move it splits off into a massive tree of moves. As an example, the first iteration has 10 potential moves, the next has 100 and the next has 1,000 With Go as an example there may be 100 potential moves on the first iteration and then 10,000 and then 10,000,000 The number of potential moves grows way faster then in chess.