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A 3x3x3 half-regularly truncated on 6 corners and afterwards extended. The result has th shape of the name giving solid.
This puzzle is part of the series "Sharp Corners". All modifications of this series are made by truncating an 3x3x3 on its corners. These truncations are not regular as in the Half Truncated Cube. One dimension of the cut goes deeper than the other two. This half-regular style of truncating a corner was popularized by the Hexagonal Dipyramid. The cutting depths do have to go as deep as in the Hexagonal Dipyramid. The Triakis Tetrahedron is another example which uses half-regularly truncated corners too but with diffrent cutting depths.
The technical signature (20A0000001410) indicates where to cut the original cube.
Some members of this series are made solely by truncating. Others receive additional extensions to "delete" some of the remaining faces.
The first puzzle truncated into this shape was a 4x4x4. Like all truncating techniques this concept can be easily applied to any hexahedron as long as the mechanisms does not prevent it.
The extended version of this variant is the Axis Cube.
Years after its invention Dian Sheng started mass production of this variant.
Thank you to the following people for their assistance in helping collect the information on this page: Zzupler.
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