Even with many discs, you are in trouble if the only places you can play are dangerous X-squares or C-squares. Conversely, even with few discs, you can lead the game if you can choose among several good squares. Look at both the number of legal moves and their quality.
Exercise
Black to move. Find the move that leaves the opponent the fewest legal moves right after you play. If several moves share the same value, all of them are correct.
Exercise
Black to move. Find the move that leaves the opponent the fewest legal moves right after you play. If several moves share the same value, all of them are correct.
Exercise
Black to move. Find the move that leaves the opponent the fewest legal moves right after you play. If several moves share the same value, all of them are correct.
Exercise
White to move. Find the move that leaves the opponent the fewest legal moves right after you play. If several moves share the same value, all of them are correct.
Exercise
White to move. Find the move that leaves the opponent the fewest legal moves right after you play. If several moves share the same value, all of them are correct.