The core of the Rubik's Cube is a shaft, which consists of 26 small cubes. Including six central squares, it is fixed and only one side is colored. Eight corner squares (3 colored faces) (corner blocks) can be rotated. There is also a 12 square (colored on both sides) (edge block) that can also be rotated. When toys are sold, the arrangement of small cubes makes each side of the big cube have the same color. When one side of a large cube translates and rotates, the single color of its adjacent side is destroyed to form a new pattern cube, and then it is changed to form small squares with different colors on each side. According to experts' estimation, all possible modes are about 4.3× 10 19. The game is to restore the disturbed cube to a single color by rotating it as soon as possible.

There are many kinds of Rubik's Cube, usually the most common third-order Rubik's Cube. In fact, there are all kinds of second-order, fourth-order and fifth-order cube cubes (at present, the highest level of physical objects is the ninth-order cube). There are other polyhedral Rubik's cubes, and the faces can also be other polygons. For example, pentagonal dodecahedron: five Rubik's cubes, referred to as five demons, English name: Megamix, also known as positive 12 polyhedral Rubik's cube, 3x4 cuboid, 3X5 cuboid.