Route & Network Puzzles 15318
(^18) .....
:!l
+2-
....
a
.
Where should I start and what route should I take, without lifting the
marker, to mark the court completely and yet go over the minimum distance
twice? I give the correct proportions of a tennis court in feet. What is the
best route?
- WATER, GAS, AND ELECTRICITY
I think I receive, on an average, about ten letters a month from unknown cor-
respondents respecting this puzzle which I published some years ago under the
above title. They invariably say that someone has shown it to them who did
not know the answer, and they beg me to relieve their minds by telling them
whether there is, or is not, any possible solution. As many of my readers may
have come across the puzzle and be equally perplexed, I will try to clear up
the mystery for them in a more complete way than I have done in Amuse-
ments in Mathematics. First of all here is the thing, as I originally gave it, for
their consideration.
It is required to install water, gas, and electricity from W, G, and E to each