SW StudyWalks

Artificial Intelligence  /  AI 0144  ·  Atom · ~20 seconds

Score the Tree Backward

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State

A game tree is solved from the bottom: score the endings, then give every position the value of the child its controller would choose — MAX the highest, MIN the lowest.

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A position's worth depends on what its futures are worth, so the arithmetic must start where futures end.

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All the intelligence is in the direction of travel — backward — and none anywhere else.