DB023 - Pitchers and Poison

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Pitchers and Poison
Puzzle Number 023
Puzzle Name (US)Pitchers and Poison
(UK)A Sour Defeat
Picarats Given 15 Picarats
Type Multiple Choice
Location Car 4 Room
Previous Puzzle DB022 - Taking Out the Trash
Next Puzzle DB024 - A Strip of Paper

This is the twenty-third puzzle you will encounter in Professor Layton and the Diabolical Box. To access this puzzle, you must examine the pitcher on the table. In order to solve this puzzle, you must determine which the pitcher filled with poison must be placed so that 1 is guaranteed to win by having his pitcher empty.


[edit] Hints

Hint One
    Grab a few water glasses and try the puzzle out for yourself--minus the poison, of course.

    The principle that determines where the poison is should soon become obvious.

Hint Two
    If you stopped after five pours instead of 55, what would be different?

Hint Three
    Isn't it funny how on every odd-numbered pour, the poison ends up in the middle of the three pitchers?

[edit] Messages

[edit] When Failed

Too bad!

Normally, you might need some encouragement to try again at this point, but as there are only two possible answers to this problem, you now know the solution...

Do try to work out the reasoning behind the solution before answering, though!

[edit] When Completed

Nicely done!

The liquid changes pitchers 55 times, which is an odd number of pours. Regardless of where you set down your pitcher, whichever pitchers sits in the middle of the three will always contain the poison after an odd number of pours.

Therefore, in order for one to win, the poison-filled pitcher must go in spot B, because doing so will put 2's pitcher in the middle, thus guaranteeing the poison ends up in his pitcher.

[edit] Solution


The poison-filled pitcher must start in spot B.

[edit] Progress

155 Picarats and 25 Hint Coins.

Last edited by Squiggle on 2 December 2015 at 19:20
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