Called “Sums,” they were
invented by an engineer.
Claire
Maldarelli June 7, 2020
There's more than one
solution to these head-scratchers.PopSci
We know you are bored at
home right now—we are too. Here are
some puzzles and brainteasers to challenge your family and friends with, either
in person or over video chat.
Few tasks send shivers up
more spines than a math problem. Expunge your fears by cracking these puzzles
dubbed “Sums” by their creator, engineer Gordon Burgin.
A small
set of rules:
The numbers in each sector
of the above circle, square, and star equal the sum of the numbers in the
circles that border them. Easy enough, right? A few more caveats: The numbers
in the small circles can be only 0 through 9, and each digit can appear only
once. (The most common solution is linked below, but other solutions might
exist.)
To view a large version of
the puzzles: Click Here
To view the answers to the
puzzles: Click Here
This story appeared in
the Fall
2018 issue of Popular Science.
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