Rubik's Cube (English: Rubik's Cube) is a mechanical educational toy invented by Hungarian architecture professor and sculptor Ern Rubik in 1974. According to estimates, since its invention, the Rubik's Cube has sold more than 654.38 billion pieces worldwide. Rubik's Cube, China Huarong Road and French single aristocrats (learning chess independently) are called the three wonders of intellectual games.

Rubik's cube was the most popular in the 1980 s, and it has not declined so far. Soon after its appearance, many similar toys appeared one after another, some of which belonged to the inventor rubik and others. Including 4 × 4 × 4, 2 × 2 × 2 and 5 × 5 × 5 versions of the Rubik's Cube.

As the inventor of the Rubik's Cube, Professor rubik holds the Hungarian patent number # 170062, but has not applied for an international patent. He thinks that others don't want to make this kind of toy, but in fact, cloned products appear almost immediately. )