If the robot is not adaptable to its opponent's style, the game can get boring. Say you are being offensive and the robot is being defensive; in this case, the game could become repetitive: you attack, the robot defends, you attack, the robot defends, and so forth. Conversely, if you're playing defensively and the robot offensively, the same problem arises. "To avoid this, the robot should be offensive when the opponent is offensive and should be defensive when the opponent is defensive," the roboticists write in a research paper.