Third-order Rubik's Cube seven-step reduction method illustration

Magic Cube seven-step reduction method steps are as follows:

Preparation materials: a randomly disrupted imitation.

1, first restore one side, randomly choose a side to restore can be, the formula as shown.

2, one side of the restoration, we restore the first layer, the first layer to restore, the formula as shown.

3, a layer of restoration, we restore the second layer, the center block can be restored, the formula is shown in the figure.

4, when the two layers of restoration is complete, we will turn the cube over, the last layer of the restoration, the top of the first into a "fish" or "cross" shape, the formula shown in the figure.

5. We build on our previous work and restore the top, using the formula shown in the picture.

6, after the top layer is restored, we carry out the restoration of the top circle, first of all, the side blocks are restored, the formula is shown in the figure.

7, we restore the entire Rubik's Cube, Rubik's Cube seven-step reduction is complete. The formula is shown in the picture.