Artificial Intelligence / Unit 3 AI 0143 short lesson, about 20 seconds
The Three Fences
Captions available
The idea
The classical game machinery assumes three fences: exactly two players, perfect information — both see the whole position — and zero-sum, exactly opposed interests.
In practice
Chess and checkers live inside all three; poker's hidden cards step outside the second at once.
Where people slip
Each fence is a declared scope, not a law of games — lifting them opens real fields.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
Unlocks
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