1, upper right, lower right, reverse left.
Swap the positions of the small squares on the two adjacent vertices above.
2. Up, down, down.
Swap the positions of the small squares on the top two diagonal vertices.
3. Top left, bottom left, top left, Zuo Zuo and Lower Zuo Zuo.
The small squares on the top three vertices are rotated by 120 degrees.
4. Top left corner, top left corner, top right corner, bottom right corner, bottom right corner
Exchange the small squares in the middle of the three sides in turn, while ensuring that all other small squares are still.
Extended data
Development of Children's Rubik's Cube
1974, Professor rubik invented the first children's Rubik's Cube (then called Rubik's Cube). 1975 obtained the Hungarian patent number HU 170062, but did not apply for an international patent.
1979 In September, Ideal Toy Company introduced the children's Rubik's Cube to the world, and made its debut at international toy fairs in London, Paris and the United States in February and June. 1980. Later it was renamed Rubik's Cube, and the first batch of children's Rubik's Cube was exported to Hungary in May, 1980.