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For a zero-sum stochastic game which does not satisfy the Isaacs condition, we provide a value function representation for an Isaacs-type equation whose Hamiltonian lies between the lower and upper Hamiltonians, as a convex combination of the two. For the general case (i.e., the convex combination is time and state dependent), our representation amounts to a random change of the rules of the game, to allow each player at any moment to see the other playeru0027s action or not, according to a coin toss with probabilities of heads and tails given by the convex combination appearing in the PDE. If the combination is state independent, then the rules can be set all in advance, in a deterministic way. This means that tossing the coin throughout the game, or tossing it repeatedly right at the beginning, leads to the same value. The representations are asymptotic over time discretizations. Space discretization is possible as well, leading to similar results.

Zero-Sum Stochastic Differential Games Without the Isaacs Condition: Random Rules of Priority and Intermediate Hamiltonians