Games have possible player decisions and actions {information, games}, which have probabilities.
perfect information
Games can have no chance decisions {perfect information}. For perfect information, strategy determines outcome {normal form, games}. Strategies make decision-point action sequences {extensive form}.
Real games with perfect information often have too many decisions to record in normal form, so the game practically has imperfect information and has approximate strategy. Chess is two-person, zero-sum game with perfect information but very large decision space. 30,000 and 50,000 basic patterns exist. Mutual defense between pieces, cooperation in attacking common target, special pawn chains, and various castled-king patterns are basic patterns.
imperfect information
Most games involve chance {imperfect information}. Games can allow outside information. Life situations allow new action types.
Mathematical Sciences>Game Theory
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Date Modified: 2022.0224