An extensive-form game is a specification of a game in game theory, allowing (as the name suggests) explicit representation of a number of important aspects, like the sequencing of players' possible moves, their choices at every decision point, the (possibly imperfect) information each player has about the other player's moves when he makes a decision, and his payoffs for all possible game outcomes. Extensive-form games also allow representation of incomplete information in the form of chance events encoded as "moves by nature".
Read more about Extensive-form Game: Finite Extensive-form Games, Infinite Action Space
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“Art is a concrete and personal and rather childish thing after all—no matter what people do to graft it into science and make it sociological and psychological; it is no good at all unless it is let alone to be itself—a game of make-believe, or re-production, very exciting and delightful to people who have an ear for it or an eye for it.”
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