Minimax is a anagram of maximin.

As nouns the difference between maximin and minimax

is that maximin is in decision theory and game theory etc, a rule to identify the worst outcome of each possible option to find one's best (maximum payoff) play while minimax is in decision theory, game theory, etc. a decision rule used for minimizing the maximum possible loss, or maximizing the minimum gain.

As verbs the difference between maximin and minimax

is that maximin is to employ a maximin algorithm while minimax is to find the optimum play, or decision, to achieve minimizing the maximum loss.