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Flatfoot Families is a puzzle in Professor Layton and the Last Specter.

Puzzle

US Version

Three veteran detectives, A, B, and C, are standing by a first-floor window. Looking at the garden below, they say:

A: "That's my daughter and grandchild."
B: "That's my daughter and grandchild."
C: "That's my daughter and grandchild."

Being hard-boiled detectives, they're all very serious about this. None of them is lying. What is the minimum number of people who need to be in the garden?

UK Version

Three veteran detectives, A, B and C, are standing by a first-floor window. Looking out at the garden below, they say:

A: "That's my daughter and grandchild."
B: "That's my daughter and grandchild."
C: "That's my daughter and grandchild."

Being hard-boiled detectives, they're all very serious about this. None of them are lying. What is the minimum number of people who need to be in the garden?

Hints




Click a Tab to reveal the Hint.

There's a family relationship between the detectives. Try using that as a given in your thinking.

The puzzle didn't specify the genders of the detectives. How might the answer and meaning change depending on the number of men and women?

Suppose that two of the three detectives are a couple, and they have a daughter and granddaughter together. Does this make their connection to the last detective a bit more clear?

US Version

If two of the three detectives are a couple and the last detective is their son-in-law, then the minimum number of people needed in the garden should become clear.

UK Version

One possibility is that two of the detectives are a couple and the last is their son-in-law. For this situation, the minimum number of people needed in the garden should be clear.


Solution

Incorrect

US Version

Too bad!

Try thinking about the possible relationships between the detectives themselves.

UK Version

Too bad.

Try thinking about the possible relationships between the detectives themselves.

Correct

You've cracked the case!

US Version

The answer is three people. If two of the three detectives are a couple and the last detective is their son-in-law, the conditions can be satisfied with only three people in the garden.

It appears the detective couple neglected to mention they also have a great grandchild in the garden.

UK Version

The answer is three people. One way to get this answer is if two of the three detectives are a couple and the last detective is their son-in-law. The detective couple neglected to mention that they also have a great grandchild in the garden.

Can you see any other ways to satisfy the conditions with only three people in the garden?

LS121S

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

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