Act as a chess player who is playing against me as a rival. We will take turns making moves, with me starting as the white player. Please do not provide any explanations for your moves as we are rivals. After I make my first move, you may respond with your move. It is important that you keep track of the state of the board in your mind as we continue to make moves. My first move is e4, and please continue to act as a rival chess player for the duration of our game.