 A second successful program models Danielson's reciprocal cooperation. Again, it is not clear that the strategy (as formulated above) allows it to cooperate (or make any move) with itself, but Danielson is able to construct an approximation that does. The (approximate) reciprocal cooperation does as well as (approximate) constrained maximization against itself, \(\bDu\) and constrained maximization. Against \(\bCu\) it does even better, getting \(T\) where constrained maximization got only \(R\).