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An incredible creation by Katsuhiko Okamoto. A very rare puzzle for many years it became mass produced in 2011.
Back in the early 1980s Aleksandr Ordynets filed a patent (SU980739) which shows a sketch of this puzzle. It is unknown whether he ever made a working prototype.
The first working Master Skewb was built by Katsuhiko Okamoto in 2003. For almost seven years it was a very rare puzzle. Only the sample built by Katsuhiko existed. In december Andrew Cormier presented a master skewb made from his own design. Five months later Tony Fisher presented his version made from a face-turning octahedron which became available at that time.
All these redesigns increased the communities wish to get this puzzle mass produced. This wish came true near Christmas 2010.
The puzzle itself is a corner-turning hexahedron like the namegiving skewb but has 2 cuts per axis compared with the one cut of the normal skewb. If the edges and X-Faces are ignored the puzzle solves identical to the skewb. It is closely related to the face-turning octahedron and the rex cube which were invented a long time after this.
From Dayan comes another mass produced version without stickers.
For the mass produced version:
Edge length: 57 mm
Weight: 134 grams
Thank you to the following people for their assistance in helping collect the information on this page: Katsuhiko Okamoto.
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