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Here are all the distinct shapes discovered to date that Ten-Yen's pieces can form with three congruent colors. Most of these were discovered by Michael Keller of Maryland (who also conceived this challenge) and Bjarne Viken of Norway, and a few by Kate Jones. This challenge is still open. Find a new one, or prove no others exist, and you will win a prize. Check your results against these first, and only send us a new one.
Email us your solution, or draw it on paper and snailmail or fax it to:
Kadon Enterprises, Inc.
1227 Lorene Drive, Suite 16
Pasadena, MD 21122
Fax: 410-437-2163
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