How to restore Rubik's cube

The restoration methods of Rubik's cube include: layer priority method, angle priority method, 8355 method, bridge method and so on.

1, layer priority method

The easiest method to understand is the "layer priority method"

2. Angle priority method

First, put the eight corners of the Rubik's cube back in place and fix the color, then fill the edges, and finally complete the restoration.

3. Law 8355

The basic idea is to restore the bottom cross first, then the bottom three corner blocks, and the fourth corner block will not be restored, but three middle corner blocks and three top corner blocks will be restored by using this empty slot.

4. Bridge method

The idea of restoration is to make a block of 1x2x3 on the left and a block of 1x2x3 on the right. Leaving the top layer and the vertical middle layer free to rotate. The next step is to restore the direction and position of the top four corner blocks, and the last step is to restore the remaining six corner blocks and four center blocks (6E4C) only by rotating U and M. ..