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Pexeso ("Concentration game") as an arbiter of bounded-rationality models
Kuběna, Aleš Antonín
Among board games, Pexeso (Concentration game) for two players is a game almost purely output-oriented, i.e. the optimal play is not given by strategic plans with long-term horizon (e.g. no short-term tactical sacrifice is observed). So, the optimal strategy and game dynamics may be calculated almost analytically, assuming a given rationality restrictions of the players. In the paper, the optimal strategy for two players is solved using dynamic programming. Further, it is proved that for rational players, the game would end with ”stalemate” (the game never ends) with a probability close to 1. Further, the game dynamics is described if a rationality restriction is given such that the players perform a random move instead of the optimal one with probabilities P,Q > 0. In this case, the probability of a stalemate is equal to zero.
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