Minus Cube Cube is 12 times more difficult to solve. However, if one does not confine oneself to these two types of the Minus Cube, there are 48 Minus Cube variants which can be solved. Minus Cube The Minus Cube () is a 3D mechanical variant of the n-puzzle which was manufactured in the Soviet Union. It consists of a bonded transparent plastic box containing seven small cubes, each glued together from two U-shape parts: one white and one coloured. The length of one side of the interior of the box is slightly more than twice the length of the side of
Gear Cube rows and as well as 180° turns on four rows. Gear Cube Ultimate: This cube is built exactly like the Gear Cube Extreme with only eight gears. The only difference is that it added Tony Fisher style stickers to the four inner pieces on each side, making it one step more difficult to correctly orient the six sides. A common issue while solving this cube is having the entire puzzle complete except for the newly added stickers being mismatched with different sides. Even Less Gears: The only 3x3 type of Gear Cube with a total of four gears. It takes