A treasure chest is locked with a 3-digit code. Clue 1: 682 gives one correct digit, but it is in the wrong place. Clue 2: 614 gives two correct digits in their correct places. Clue 3: 206 gives one correct digit in the wrong place. Clue 4: 738 gives no correct digits. What is the code?
412
From Clue 4, 7, 3, 8 are wrong. From Clue 2 (614) and Clue 1 (682), 6 is common; if 6 were correct, it would conflict with positions, leading to 412.
About this riddle
Logic riddles give you a few facts and ask what must be true. List what you know, cross out what cannot be, and see what is left.
Difficulty: Hard. More like this: Logic riddles with answers or try Einstein's Logic Grid for a different kind of puzzle.
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