Games in Extensive Form
There is a finite set of players (who may be people, groups of people, or more abstract entities like computer programs or “nature” or “the house”).
Each player has complete knowledge of the rules of the game.
At different points in the game, each player has a range of choices or moves. This set of choices is finite.
The game ends after a finite number of moves.
After the game ends, each player receives a numerical payoff. This number may be negative, in which case it is interpreted as a loss of the absolute value of the number. For example, in a game like chess the payoff for winning might be +1, for losing −1, and for a draw 0.
KeywordsNormal Form Directed Graph Choice Function Extensive Form Perfect Information
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