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"The Pentagon" with 7-fold symmetry.

The Heptagon is a twisty puzzle similar to the Puck puzzles. It is a variation of "The Pentagon", but with 7-fold symmetry now.
The core of the puzzle is sphere that is cut in two halves and topped off to create two centers. The core has a set of dovetail-style grooves. Twenty-eight hidden edge pieces slide in these grooves. The puzzle has fourteen corners. Oskar used CADding to have the corners move smoothly over and under each other. The object of the puzzle is of course to scramble the puzzle and they to try and solve it.

Each move either turns a center with seven corners, or a side with four corners. Each side can be turned by 180 degrees, which is a regular move. But a side can also be turned by +/- 90 degrees. Once there are corners turned by 90 degrees, then some of the side turns are blocked. This puzzle does not jumble since an unbandaged geometry is thinkable.

Edge length: 36 mm
Side length: 40 mm
Height: 35 mm
Weight: 34 grams



Thank you to the following people for their assistance in helping collect the information on this page: Andreas Nortmann, Brandon Enright.


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