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The standard minimax algorithm calculates worst - case values in a zero - sum two player game, i . e . a game for which
The standard minimax algorithm calculates worstcase values in a zerosum two player game,
ie a game for which in all terminal states s the utilities for players A MAX and B MIN obey
ss In this zerosum setting, we know that ss so we can think of player
B as simply minimizing
In this problem, you will consider the nonzerosum generalization, in which the sum of the two
players' utilities is not necessarily zero. The leaf utilities are now written as pairs In this
generalized setting, A seeks to maximize the first component, while B seeks to maximize
the second component.
Consider the nonzerosum game tree below. Note that leftpointing triangles such as the root
of the tree correspond to player A who maximizes the first component of the utility pair,
whereas rightpointing triangles nodes on the second layer correspond to player B who
maximizes the second component of the utility pair.
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