From: Thomas R. Kettler on
In article <210620101416101327%aeiou(a)mostly.invalid>,
Mark Conrad <aeiou(a)mostly.invalid> wrote:

> Like many have said, real police work is dull hard work,
> looking for subtle relationships between the available facts.
>
> You wanna check out how good a crime-solving outfit is?
>
> Give them the following "crime" and time them as to how
> long it takes them to solve it ;-)
>
> All the necessary facts are here.
>
> Assumption is that the "criminal" has been a constant customer
> at a local pet fish store, but no one has been able to identify
> exactly who the customer is.
>
> For the brainy ones out there, no hints please, until the rest of
> us give up.
>
> Only two out of a hundred people can solve this puzzle,
> the rest give up.
>
> I am ten minutes into it, have not solved it yet, but like every
> good crime fighter I am doing the dull paperwork necessary
> to establish who the criminal is.
>
> Will post again _when_ I solve it.
>
> heh heh, wonder how long it would take our local police
> departments to solve this.
>
>
> Einstein (no one know his real IQ) give us a puzzle like this,
> for he stressed examining assumptions, and once wrote:
> "The important thing is to not stop questioning."
>
>
> Facts:
> There are 5 houses in 5 different colours
> In each house lives a person with a different nationality..
> These 5 owners drink a certain beverage, smoke a certain
> brand of cigar and keep a certain pet.
> No owners have the same pet, smoke the same brand of cigar,
> or drink the same drink.
>
>
> Hints:
> The Brit lives in a red house.
> The Swede keeps dogs as pets.
> The Dane drinks tea.
> The green house is on the left of the white house.
> The green house owner drinks coffee.
> The person who smokes Pall Mall rears birds.
> The owner of the yellow house smokes Dunhill.
> The man living in the house right in the centre drinks milk.
> The Norwegian lives in the first house.
> The man who smokes Blend lives next to the one who keeps cats.
> The man who keeps horses lives next to the man who smokes Dunhill.
> The owner who smokes Blue Master drinks beer.
> The German smokes Prince.
> The Norwegian lives next to the blue house.
> The man who smokes Blend has a neighbour who drinks water.
> The question for the Einstein test is ... WHO KEEPS THE FISH?

It took me a bit over an hour to work on it. The longest time was
setting up a spreadsheet in Excel with the clues. I thought that was
easier than making a grid on paper.

This was fairly straightforward. I've done some logic puzzles where you
must check yourself every step because you'll otherwise get something
wrong.
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