The Rubik's Cube is a three-dimensional cube toy, also known as Rubik's Cube or Savage's Cube.

The Rubik's Cube was invented by Hungarian architect Ernó Rubik in 1974 to help students understand the combination and structure of space cubes.

A Rubik's Cube is usually composed of center blocks, edge blocks and corner blocks, and the relative position of each color is fixed. The appearance of a Rubik's Cube is usually a cube, with each face composed of 9 small color blocks. On the surface of the Rubik's Cube, each small color block can be rotated along the edge, but the entire Rubik's Cube cannot be disassembled or assembled.

The way to play the Rubik's Cube is by rotating the sides of the Rubik's Cube to restore them to their original state. This kind of game can exercise players' spatial thinking, memory and hand-eye coordination. The Rubik's Cube is also considered a challenging toy because it can be combined in so many ways.

In addition to the traditional three-level Rubik's Cube, there are many Rubik's Cubes of different levels and variants. These cubes vary in difficulty, shape, and color combinations, providing players with more choices and challenges.

Types of Rubik's Cube:

1. According to the order, the Rubik's Cube can be divided into second-order, third-order, fourth-order, fifth-order, etc. This is divided according to the number of layers of the Rubik's Cube. For example, the second-level Rubik's Cube has only two layers, and players need to rotate the top and bottom layers, while the third-level Rubik's Cube has six sides and needs to rotate the top, middle, and bottom layers. As the level increases, the difficulty of the Rubik's Cube will also increase accordingly.

2. Rubik’s cubes can also be classified according to structure type. Common ones include standard Rubik's Cube and special-shaped Rubik's Cube. The standard Rubik's Cube is designed and assembled according to the shape of a cube, with each face being a regular hexagon. The special-shaped Rubik's Cube refers to non-cube shapes, such as spheres, rhombuses, etc.

3. Rubik’s cubes can also be classified according to color. The most common ones are single-color Rubik's Cube and double-color Rubik's Cube. Each face of a single-color Rubik's Cube is one color, while each face of a two-color Rubik's Cube is made up of two colors.

4. There are also some special types of Rubik's Cubes, such as musical Rubik's Cube, luminous Rubik's Cube, magnetic Rubik's Cube, etc. These Rubik's cubes have some special features in design and function, bringing more fun and challenges to players.