How to restore the third-level Rubik's Cube:

1. Cross on the bottom and restore the bottom.

2. Then restore the middle and restore the four edges of the middle layer.

3. Top cross, the top surface is restored, you only need to observe the edge blocks on the top surface, and you only need to adjust the orientation of the four corner blocks on the top layer.

4. Then make the top layer only have the edge blocks wrong and the corner blocks all right.

5. Finally, return the four edges of the top layer to their positions.

The Rubik's Cube is called the Magic Cube in Taiwan, China, the Twist Cube in Hong Kong SAR, China, and the Rubik's Cube abroad. A mechanical educational toy invented by Hungarian architecture professor and sculptor Erno Rubik in 1974. It was originally called Magic Cube. In 1980, Ideal Toys sold the toy and changed the name to Rubik's Cube. .

The Rubik's Cube was most popular in the 1980s and has not declined. As of January 2009, more than 350 million Rubik's Cubes have been sold worldwide.

The single world record for the three-level Rubik's Cube is 3.47 seconds held by Chinese player Du Yusheng, and the average world record is 4.86 seconds held by Polish player Tymon Kolasiński and American player Max Park.

In March 1970, Larry Nichols invented the "Puzzle with Pieces Rotatable in Groups" and applied for a Canadian patent. It is a 2×2×2 Rubik's Cube, but each square is connected to each other with magnets. Suck together. It received a U.S. patent in 1972, two years before Professor Erno Rubik's Rubik's Cube.