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Thick-N-Thin-7
By Serhiy Grabarchuk, Peter Grabarchuk, and Helen Homa
Exchange Puzzle from Serhiy Grabarchuk for IPP28
Manufactured by Vaclav Obsivac (VIN&CO)
Photos of the puzzle
Copyright © 2007-2017
Peter Grabarchuk.
All Rights Reserved.
Last Updated:
March 16, 2017
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