A class of game in which players move alternately and each player is completely informed of previous moves. Finite, zero-sum, two-player games with perfect information (including checkers and chess) have a game saddle point, and therefore one or more optimal strategies. However, the optimal strategy may be so difficult to compute as to be effectively impossible to determine (as in the game of chess).
Perfect Information
See also
Finite Game, Game, Zero-Sum GameExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Perfect Information." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PerfectInformation.html