Re: FN-FORUM Sensible puzzles

date posted 20th January 2003 13:31

> The "language" riddle is a bit old hat now. So is the "Monty Hall"
problem.
> A better puzzle is the three services and three houses puzzle. It has a
> solution, but it takes a neat bit of lateral thinking to work it out.
>
> You draw three little boxes in a row. One represents an electricity
> company, one a gas company and the third a water company.
>
> Under this row of three squares, you draw another row of three squares -
> each of which represents a house. The puzzle is to draw lines to represent
> supply lines so that each house is supplied with gas water and
electricity.
>
> The rules are that these supply lines must not cross over each other, or
go
> through the houses. There is a solution and it is ingenious.
>

The lines must not go throught the houses, but then they can go throught the
services (right?), which makes it quite simple to draw.

Stas