The complete picture of the Rubik's Cube is as follows:
The Rubik's Cube, also called rubik Square, was first invented as a mechanical educational toy by Professor Ern Rubik of Budapest Institute of Architecture in 1974. Rubik's cube has a variety of ways of playing, such as racing, blind twisting, single twisting, etc., and its popularity has not declined for a long time. It holds large and small competitions every year and is one of the most popular intellectual games.
The Rubik's Cube in the ordinary sense refers to the third-order Rubik's Cube in the narrow sense. The third-order Rubik's cube is usually a cube and made of elastic hard plastic. The conventional racing game is to disrupt the Rubik's cube and then restore it in the shortest time. The generalized Rubik's cube refers to all kinds of geometric bodies that can be disturbed and restored by rotation.
in March p>197, Larry Nichols invented "puzzle with pieces rotatable in groups" and applied for a Canadian patent. It is a 2×2×2 Rubik's cube, but each cube is attracted to each other by magnets. In 1972, he obtained an American patent, two years earlier than Professor rubik's third-order Rubik's Cube.
Rubik Erno is a Hungarian professor of architecture and sculpture. In order to help students understand the composition and structure of the space cube, he made the first prototype of the Rubik's Cube by himself, which was inspired by the gravel in the Danube.
In p>1974, Professor rubik invented the first Rubik's Cube (then called Magic Cube), and in 1975, he obtained the Hungarian patent number HU1762, but did not apply for an international patent.
The first Rubik's Cube was sold in a toy store in Budapest in 1977. Unlike Nichols' Rubik's Cube, Professor rubik's parts are interlocked like tenons, which are not easily separated by external forces and can be made of any material.