UF084 - Crossing the River

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Crossing the River
Puzzle Number 084
Puzzle Name (US)Crossing the River
(UK)Four Cross the River
Picarats Given 30 Picarats
Type Write Answer
Location Noodle Shop
Previous Puzzle UF083 - Shelve the Books
Next Puzzle UF085 - More Noodling Around

This is the eighty fourth puzzle you will encounter in Professor Layton and the Unwound Future. To access this puzzle, you must talk to Barton. In order to solve this puzzle, you must determine the minimum amount of time it will take to get all four police officers across the river.


[edit] Hints

Hint One
    Think of the first two as A and B. One of them rows the other to the opposite shore. Whoever does the rowing gets tired, so make a not of that.

Hint Two
    After the first trip across, have the officer who didn't do the work row back. Using this method, the first two who came across will each have rowed only once. When the one who rows back picks up the third officer, have the new person do the rowing.

Hint Three
    After the action in Hint Two is complete, there will be three officers across the river who have each rowed once. One of them needs to go back and get the last person, but it doesn't matter who. They will each take two minutes because it will be their second time rowing.

Super Hint
    After the action described in Hint Three, you have one minute across, one minute back, one minute across, and two minutes back.

    So it takes five minutes for the fourth officer to be picked up. There's just one trip across left. If you have the right person row, you should be able to figure out the answer, no problem.

[edit] Messages

[edit] When Failed

Bad luck.

Drawing a diagram may prove helpful here.

[edit] When Completed


It will take six minutes.

A rows A and B across. B rows back, picks up C, and C rows across. Now that A, B, and C are across the river, one of them has to row back and get D, who then takes over and rows across.

[edit] Solution

It will take a minimum of six minutes.

[edit] Progress

2750 Picarats and 215 Hint Coins.

Last edited by Squiggle on 17 November 2015 at 20:46
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