Pandigital Olympic Circles Puzzle
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The pandigital numbers 1 to 9 are arranged in five olympic rings as shown. If you add up the numbers in a circle, you get the same sum for each of the circles.
Contributed by: Frederick Wu (March 2011)
Additional work by: Sidong Zeng
Open content licensed under CC BY-NC-SA
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"Pandigital Olympic Circles Puzzle"
http://demonstrations.wolfram.com/PandigitalOlympicCirclesPuzzle/
Wolfram Demonstrations Project
Published: March 7 2011