As shown in the figure, the last set of edges is left in the fifth-order Rubik's Cube. How to spell it requires a formula.

Similar to the fourth-order merged edge, the fifth-order merged edge involves formulas until the last two. Of course, you can also disassemble the other side according to your own observation, so that the three sides can be observed and restored.

1 and odd high-order Rubik's cube confirm the color of this surface according to the color of the existing center block. As shown in the figure:

2. General reduction step: complete the centering of the hexagonal central block, merge 12 edges, and reduce by three steps. As shown in the figure:

3.m means the middle layer rotates, and T means the two layers rotate together. As shown in the figure:

4. After the centering block is completed, the fifth-order block is restored by using the reduction experience of the fourth-order Rubik's cube. As shown in the figure:

5. Restoring to the last two sides of the center block will encounter two situations. As shown in the figure:

6. Assemble 12 side. As shown in the figure: