Rubik's Revenge
4x4x4
Inventor: Péter Sebestény in 1980.
Release: 1981 (Ideal Toy Company, USA)
Possible combinations: ~ 7,4 x 1045 (estimative of molecules in all Earth's water: ~5 x 1046)
Instructions:
- To rotate the entire cube in space, simply click and drag on the gray background using your mouse or your finger if you're using a touchscreen device.
- To rotate specific layers of the cube, click and drag on the facelets of the desired layer in the direction you want to rotate it.