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Family Tides is a puzzle in Professor Layton and the Last Specter.

Puzzle

US Version

A couple and their three children need to cross this river by raft. The raft can hold up to two people--one person to row and one passenger.

Rowing is hard work, however. Both adults can row across twice, but they need to stop for a rest between the two trips. The children can only row across the river one time.

Can you help get everyone in the family to the other side?

UK Version

A couple and their three young children need to cross this river by raft. The raft can hold up to two people: one person to row and one passenger. It turns out that rowing is hard work, however. Both adults can row across twice, but they need to stop for a rest between the two trips. The children can only row across the river once.

Can you help get everyone in the family to the other side?

Hints




Click a Tab to reveal the Hint.

US Version

This one might be hard to work out all in your head. Try a more hands-on approach, and experiment by moving people on the raft.

You'll work out the trick to this puzzle soon enough.

UK Version

This one might be hard to work out all in your head. Try a more hands-on approach and experiment by moving people on the raft as you think. You'll work out the trick to this puzzle soon enough.

Once you've worked out the trick to this puzzle, concentrate on trying to get the children over first.

US Version

If you send two children over in one trip, you'll get stuck. Try sending the children over one at a time.

After that, experiment with the order to get the parents across.

UK Version

You might eventually get stuck if you send two children over in one trip. Try sending them one at a time instead.

After that, you just need to experiment with the order in which the parents cross.

Here are the first few steps:

US Version
  1. Child 1 rows across with Dad.
  2. Dad rows back.
  3. Child 2 rows across with Mom.
  4. Mom rows back.
  5. Child 3 rows across with Dad.

You should be able to work out the rest without too much trouble. Do your best to help out this nice family in need.

UK Version
  1. Child 1 rows across with Dad.
  2. Dad rows back.
  3. Child 2 rows across with Mum.
  4. Mum rows back.
  5. Child 3 rows across with Dad.

You should be able to work out the rest without too much trouble. Do your best to help out this nice family in need.


Solution

Correct

Correct!

US Version

In addition to the solution shown here, there is an alternate method in which neither parent ever rides on the raft with a child. If you haven't solved it that way yet, it might be a fun extra challenge for you.

UK Version

In addition to the solution shown here, there is an alternate method in which neither parent ever rides on the raft with a child. If you haven't solved the puzzle that way yet, it might be a nice extra challenge for you!

LS051S

A big thanks to http://professorlayton4walkthrough.blogspot.com

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