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Queen Mary's Jewel
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The first puzzle based on the tetrakis hexahedron, a jumbling only puzzle.

Queen Mary's Jewel is a jumbling-only puzzle based on the geometry of the Tetrakis Hexahedron. At the time of its conception, there was no other puzzle in existence that used this geometry. The exterior shape of Queen Mary's Jewel is an irregular Truncated Octahedron. The edges of the hexagonal faces are exactly in the ratio of 2:1. Queen Mary's Jewel is approximately corner turning, however the rotation axes do not exactly pierce the vertices of the Truncated Octahedron. Pieces were designed in Solidworks, printed by i.materialise, and the stickers were provided by Oliv�r Nagy, who also suggested the colours of the hexagonal faces.

Some quick facts:
14 faces, 14 colours.
24 possible turns.
11 stops for each turn.
171 printed pieces.
163 mathematical pieces.
8 piecetypes (including the core).
18 pieces moved in one rotation (in solved shape).

The 11 stops each turn allows is near the mathematical optimum of 12 turns. Only the 180�-turn is not present.
Brandon Enright funded the first prototype of this puzzle. The inventor's girlfried named it.

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