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Why was chess a favoured early research problem?

  • A.It has commercial applications that attracted early funding
  • B.Its environment is simple to specify while the task is genuinely hard
  • C.It requires the same commonsense knowledge as everyday tasks
  • D.It is fully solvable by exhaustive search on modest hardware

Answer: B

The rules are trivially stated and the state is fully visible, yet the branching factor makes exhaustive search impossible, so the game isolates the search and evaluation problem from every other difficulty. That made it an ideal laboratory. It requires no commonsense knowledge, which was later seen as a limitation of the choice, and it is not exhaustively solvable. A problem that isolates one difficulty cleanly is worth more as a testbed than a realistic one that mixes several.

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