 Nalebuff, as later writers in mathematical economics, sees the problem as a simple and amusing exercise in game theory.Phillip Martin's article in a 1989 issue of "Bridge Today" magazine titled "The Monty Hall Trap" (Martin 1989) presented Selvin's problem as an example of what Martin calls the probability trap of treating non-random information as if it were random, and relates this to concepts in the game of bridge.A restated version of Selvin's problem appeared in Marilyn vos Savant's "Ask Marilyn" question-and-answer column of "Parade" in September 1990.