Information Sets
72 words
1 min read
Visual companion
Python
Type and operator map
Python Week 1: the first filter for runtime behavior
View
Revision summary
What this note is really saying
Short form
# Information Sets ## Representing Simultaneous Moves To represent a simultaneous game in extensive form, we use an **information set** containing two nodes for Player 2, neither of which P2 can distinguish (because P1's move hasn't been observed). ## Perfect Recall A game satisfies **perfect recall** if every playe...
Information Sets
Representing Simultaneous Moves
To represent a simultaneous game in extensive form, we use an information set containing two nodes for Player 2, neither of which P2 can distinguish (because P1's move hasn't been observed).
Perfect Recall
A game satisfies perfect recall if every player remembers their own previous moves and what they knew. Games without perfect recall can have counterintuitive equilibria.
Join Discord
PreviousExtensive-Form GamesNextExtensive Form Advanced