The Helicopter Cube is a Rubik's Cube-like puzzle invented by Adam G. Cowan in 2005 and built in 2006.[1][2][3][4][5][6][7] It is also in the shape of a cube. At first glance, the Helicopter Cube may seem like a combination of the 2x2x2 and the Skewb, but it actually cuts differently, and twists around cube edges rather than cube faces. The purpose of the puzzle is to scramble the colors, and then restore them back to their original state of a single color per face.
- ^ "Helicopter Cubes Black body". Mèffert's. Archived from the original on 2011-07-14. Retrieved 2010-09-01.
The Helicopter Cube was conceived by Adam G. Cowan in 2005, but wasn't built until 2006, when Adam discovered that 3D printing could be used to realize the parts.
- ^ "Helicopter Cube - White Body". Puzzle Master Inc. Archived from the original on 2011-07-06. Retrieved 2010-09-01.
- ^ Goetz Schwandtner. "Helicopter Cube white". Extremely Puzzling. Retrieved 2010-09-01.
Designed by: Adam Cowan
- ^ Tom van der Zanden. "Curvy Copter". Retrieved 2010-09-01.
The Curvy Copter is my most popular puzzle yet. It is a variation on Adam G. Cowan's Helicopter Cube.
- ^ "System of twisty puzzles". Archived from the original on 2010-08-07. Retrieved 2010-09-01.
Helicopter Cube was designed and built by Adam G. Cowan (Puzzlemaster42) and Katsuhiko Okamoto (Katsuhiko) in 2007
- ^ "L'Helicopter Cube (French)". fan2cube. Retrieved 2010-09-01.
- ^ Jason Smith. "Adam Cowan's Helicopter Cube Mass Production – 4/2010". Puzzle Forge. Retrieved 2010-09-01.