Fig. 2From: Oyun: A New, Free Program for Iterated Prisoner's Dilemma Tournaments in the ClassroomExample results demonstrating the victory of a “parasite” finite state machine in a one-shot tournament. Note especially the score in the Host vs. Parasite matchup: 8,820 points to the parasite, 60% higher than the all-cooperate score of 5,322Back to article page