Riddle 2

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  1. Soniabala profile image62
    Soniabalaposted 4 years ago

    Bobby Braingle has a bit of a dilemma on his hands. He has accidentally locked his puzzle collection in a combination safe. Being rather dim and absent-minded, he has gone and forgotten the combination.

    This safe uses letters instead of numbers. The six letters used in the combination are Z, Y, X, W, V, F. No letter is repeated. Here are three incorrect guesses

    Bobby has already made:
    X Y Z W F V
    Z V W X Y F
    V W F Z X Y
    In the first guess, only one letter is in its correct place
    In the second guess, only two letters are in their correct places.
    In the third guess, only three letters are in their correct places.
    Each of the six letters is in its correct place once.

    What is the correct combination needed to rescue the puzzle collection?

    Answers Pls smile

    1. profile image0
      calculus-geometryposted 4 years agoin reply to this

      V Y W Z X F

  2. StageCheck profile image58
    StageCheckposted 4 years ago

    All of these letters are the correct combination.

  3. Martin Heeremans profile image72
    Martin Heeremansposted 4 years ago

    Z Y F W X V

  4. Soniabala profile image62
    Soniabalaposted 4 years ago

    Correct Answer

    The combination was either VYWZXF or ZVFWXY. He only needs to try these two in order to rescue his puzzle collection. Solving this puzzle requires a method of trial and error. Start with the first combination and assume that one of the letters is in the correct position. Assuming the Y is correct, we know that the V in guess 2 is in the wrong position so it must be in the correct position in guess 3. Likewise W in guess 3 is wrong, so its position in guess 2 must be correct. If a W's position in guess 2 is correct, then F in guess 3 must be incorrect, which means its position in guess 2 is correct. Continue this logic until you arrive at the answer. (If your first assumption was incorrect, you would arrive at an impossible situation and have to start over.

    1. profile image0
      calculus-geometryposted 4 years agoin reply to this

      It's like that game Mastermind, where someone makes a sequence with four colored balls and you have to guess what it is. I got lucky and found the first correct answer pretty quickly, but I didn't think to check if there was a second solution.

      1. janshares profile image95
        jansharesposted 4 years agoin reply to this

        I love that game and thought the same as I tried to figure it out. But for some reason, I had a hard time applying the deductive reasoning principles to this puzzle without the colored pegs.

        1. profile image0
          calculus-geometryposted 4 years agoin reply to this

          I know what you mean! For me, the letters at the end of the alphabet are hard to keep straight. I think better with colors, or when the letters are ABCDEF.

          1. janshares profile image95
            jansharesposted 4 years agoin reply to this

            Yup, hard to keep it straight in my head instead of being able to look back at what's been done with the help of the black and white pegs.

  5. The Examiner-1 profile image72
    The Examiner-1posted 4 years ago

    ZYXWVF

 
working

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