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Another cuboid in the series of 2x2xN puzzles. Implemented five years after the 2x2x6.
For a long time of about six years this cuboid was a deeply missed slot in the array of cuboids. The 2x2x4 had been known for a long time before. The 2x2x6 was presented in 2002 or 2003 (with regular cubies) but the 2x2x5 was presented no earlier than 2008.
The images 1-4 show a duplicated sample from the collection of Claus Wenicker.
Images 5 shows the mass produced version from Witeden.
It was later rebranded to 1688Cube and a purple and a transparent version was added. See images 6-8.
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Contributors
Thank you to the following people for their assistance in helping collect the information on this page: Andreas Nortmann.
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