Take the cross surface as the center, and ensure that the two faces of the two blocks with diagonal vertex angles correspond to the colors of the cross center and its adjacent sides respectively.
When the red area is located in the circle of the top floor, rotate the top floor horizontally. The blue area can be adjacent to the center block of the right blue surface, and the red and blue areas should belong to the front. When the red and blue areas are just in the right position, but the colors are reversed, use any of the following methods to remove the squares in the area. Move to the top circle, and then become the picture below. By using this method, all the edge intermediate blocks of the second layer can return to their original positions, and the third step is completed.
The above should form a top fork, as shown in the figure.
The purpose of this step is to return all the middle blocks on the top four sides to their original positions. Rotate the top layer to make the block in one side return to its original position, and the other three cannot return to their original positions. Then, set the red side as the front, and rotate it to make the blocks in the four sides return to their original positions.
Repeat the above steps once, and finally completely restore the Rubik's cube.
The use of Rubik's cube.
Exercising spatial thinking ability and establishing coordinate system are helpful to mathematics.
Exercise memory and reaction ability.
Practice can be used as a special talent to attract the attention of the opposite sex.
Take part in the competition and get the bonus.
Make new friends through Rubik's Cube Competition or Rubik's Cube Fan Club.
Constantly challenge yourself.