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Septic Twist
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Four layers in shapes of heptagons can be turned without jumbling and fudging.

This puzzle is a strange combination of two strange ideas into an even more strange puzzle.
Although Oskar van Deventer is the designer of this puzzle there are three other persons who contributed to this puzzle if spoken about creativity:
1. There was Wayne Johnson who presented in 2009 a puzzle prototype he named "Jewel 45". A puzzle with six movable layers which allow turn in multiples of 45�. See image 8.
2. There was Andreas Nortmann who rediscovered Wayne's concept and asked Oskar to rebuilt it so he can make a good entry for the museum.
3. There was Bram Cohen who challenged Oskar to design a twisty puzzle with septagons.

Oskar decided not to redesign "Jewel 45" but to combine both ideas into this new puzzle. The result has four layers which can be moved in multiples of 360/7�. It has four heptagonal centers and 23 edges. The four heptagons are oriented in an unusual fashion around the core which even leaves one great chunk of the core visible.
The puzzle is not too hard to solve since every pair of axis share only one piece.

Compared with the number available if the puzzle can be disassembled and reassembled there are three restrictions:
-The orientation of the edges must be even.
-The permutation of the edges must be even.
Stickered as shown here the puzzle has 196504663197648257957665117436903424000000 = 197*10^39 permutations.

Edge length (heptagon): 22 mm
Weight: 128 grams



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


This puzzle can be found in collections of these members:

Andreas Nortmann: Andreas' collection

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