Kuhn (1953) introduced the distinction between perfect and imperfect recall in games with imperfect information. Roughly, players have perfect recall provided they remember all of their own past moves (see Bonanno 2004; Kaneko &amp; Kline 1995 for general discussions of the perfect recall assumption). It is standard in the game theory literature to assume that all players have perfect recall (i.e., they may be uncertain about previous choices of their opponents or nature, but they do remember their own moves).