To win as fast as possible, I need to consider the current state of the board and find the best position to place my symbol. Given that my opponent has placed their symbols in a way that could potentially block my winning lines, I should try to place my symbol in a position that gives me the most options for the next move. Since the center of the board is already occupied by my opponent's symbol, I should look for the next best position that could potentially create two possible winning lines.