Nation of Beancounters

The hardest logic puzzle in the world

Posted in Uncategorized by Navin Kumar on December 29, 2012

Via Gizmodo who got it from New Scientist:

Three gods A, B, and C are called, in some order, True, False, and Random. True always speaks truly, False always speaks falsely, but whether Random speaks truly or falsely is a completely random matter. Your task is to determine the identities of A, B, and C by asking three yes-no questions; each question must be put to exactly one god. The gods understand English, but will answer all questions in their own language in which the words for ‘yes’ and ‘no’ are ‘da’ and ‘ja’, in some order. You do not know which word means which.

The author is George Boolos, circa 1996. I have not attempted it yet. A simple answer can apparently be found here.

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