Maybe the search space is limited in the first few minutes of the game when your opponent has also has a limited set of moves, but as the game goes on, the comp

Maybe the search space is limited in the first few minutes of the game when your opponent has also has a limited set of moves, but as the game goes on, the complexity increases exponentially. The 7 roach rush could be calculated here because the algorithm essentially completes when it reaches 7 roaches, but longer more complicated builds would be significantly harder -- like a 2-base blink all-in.