A Very Tough Puzzle

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Match the sides as you put together the pieces in the pink 4×4 square.

Contributed by: Eric Gu (March 2011)
Open content licensed under CC BY-NC-SA



This a modification of Kaliko and was originally patented as one of the MacMahon square sets back in 1926. See "More about edgematching".

Based on The Ultimate Puzzle by YMIR, Inc.

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