extensive form game

noun

Informally, a representation of a game as a tree of decision nodes, with the game beginning at a unique initial node, and flowing through the tree along a path determined by the players until a terminal node is reached, where play ends and payoffs are assigned to all players; each non-terminal node belongs to a player; that player chooses among the possible moves at that node, each possible move is an edge leading from that node to another node.

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Meanings

nounextensive form game (plural extensive form games)

plural extensive form games

  1. computingInformally, a representation of a game as a tree of decision nodes, with the game beginning at a unique initial node, and flowing through the tree along a path determined by the players until a terminal node is reached, where play ends and payoffs are assigned to all players; each non-terminal node belongs to a player; that player chooses among the possible moves at that node, each possible move is an edge leading from that node to another node.
Cite this entry
APA

extensive form game. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/extensive%20form%20game

MLA

“extensive form game.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/extensive%20form%20game. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “extensive form game,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/extensive%20form%20game.

Source: extensive form game on Wiktionary, CC BY-SA 4.0.