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Two guards

668 bytes added, 12:14, 8 April 2010
Created page with 'Here is the classic puzzle of the two guards, one a liar and one honest. As seen in Labyrinth, Doctor Who, and elsewhere. ==Puzzle== You are in a dungeon (trying to get out, o…'
Here is the classic puzzle of the two guards, one a liar and one honest. As seen in Labyrinth, Doctor Who, and elsewhere.

==Puzzle==

You are in a dungeon (trying to get out, of course) and you encounter two doors with a centurion guarding each one. One guard always lies and the other
always tells the truth, but you do not know which is which. You are allowed one question to determine the correct door. (The correct door leads to a beautiful princess, a king’s ransom, etc., while the incorrect door leads to a man-eating lion, and horrible death) What question should you ask, and to whom, to ensure your safety?

[[Category: Liar puzzles]]
[[Category: Logic]]
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