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A two-layer, curvy, dual-jumbling, edge turning cube.
The Master Curvy Copter is a two-layer edge turning cube. This puzzle was the first-ever multi-layer jumbling puzzle, meaning both layers can make the special turns, as explained in the video here:
Edge length: 65 mm
Weight: 123 grams
Originally this puzzle was presented under the name "Master Helicopter Cube". In 2012 the creator presented another edge turning hexahedron with four cuts per axis. Its cuts are plane and the creator decided to rename this one as "Master Curvy Copter".
Thank you to the following people for their assistance in helping collect the information on this page: Eitan Cher, AydenRW1.
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