You are going to do a team work with another person. You have 3 strategies: do nothing, do the bare minimum or make a serious effort. The final mark depends on the effort of both: if it exceeds a certain limit L, you pass and earn X points, if not, you fail and lose 2. But also, you lose as many points as the effort you personally have invested. That is, whether you pass or not, the one who has worked the least wins. Which strategy is better to choose? Try to play with the AI, but better yet, make it play with itself. What will happen? Try changing the threshold value ("We pass with") and the pass reward ("Pass-Fail"). Does something change? The 3D diagram shows which strategy is better playing against the random strategy.