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The first time I played the game, I cooperated the entire way through. I wanted to see if the computer would vary its moves. But alas, no. I do believe this took some of the mystery out of the game, the knowledge that the computer's move was whatever I last did. I tried a variety of moves, alternating between 'compete' and 'cooperate'. In the end I could only manage to have at most 5 coins more than the computer. I never lost.I didn't really see the purpose of the game. I suppose that if this were reality, I would generally chose to cooperate. If this could relate to matters of business and money, I think it would be best to work with a competing business to attain mutual satisfaction, rather than to risk working against them.