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by Atiscant
562 days ago
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Or for the mathematically inclined: How many n x n puzzles with unique solutions exists for a given size n? n=1 is trivial, and n=2 it small enough to enumerate with 3^4 = 81 solutions, but many of them being degenerate (no solutions), but already n=3 is pretty bad with ~20.000 possible puzzles. I do not see an obvious path to compose solutions either and make use of some kind of structural induction. |
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