In light of these considerations, many logics for defining strategies involve epistemic elements. It seems reasonable to demand that agents cannot base their choice of strategy on everything that has happened before, but only on what they know, i.e., their current information (Pacuit, Parikh, & Cogan 2006). The resulting uniform strategies (Maubert 2014), can be defined by the knowledge programs of Fagin, Halpern et al. (1997). Further restrictions are possible, for instance granting agents