Minus Cube 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 a small cube. There is an empty space the size of one small cube inside the box and the small cubes are moveable inside the box by tilting the box causing a cube
Gear Cube gears externally in order for the mechanics to be seen. At first sight, it looks quite formidable, nevertheless it is actually simpler to solve than the original Rubik's Cube. There are two objectives when solving the cube. The first goal is taking the mixed up puzzle back to its original cubic state. The second goal is to actually solve the puzzle by arranging each side back to their own beginning colors. The Gear Cube has a design like no other because the puzzle is made almost completely out of gears. The cube has 12 edge pieces, four on every layer,