The first formula is: Shang Shun, Right Shun, Shang Inverse, Right Inverse, Shang Inverse, Qian Inverse, Shang Shun and Qian Shun. The second is: up, forward, up, forward, up, right, up and right.

The second-order Rubik's Cube is a relatively simple Rubik's Cube, also known as Pocket Rubik's Cube, Mini Rubik's Cube, Small Rubik's Cube and Ice Rubik's Cube. The cube structure is 2×2×2. There are only eight corner blocks in itself, and there are no squares with other structures.

When the Rubik's cube is restored, it rotates according to the formula. The basic Rubik's cube is a third-order Rubik's cube, and many high-order Rubik's cubes and special Rubik's cubes are restored according to the restoration method of the third-order Rubik's cube.

The positioning of the second-order Rubik's cube;

The difference between an even-order Rubik's cube and an odd-order Rubik's cube is that the center square of the odd-order Rubik's cube is fixed, and the colors of the six faces of the whole Rubik's cube are fixed.

Restore the bottom corner block and restore all four corner blocks at the bottom. Assuming that white is the bottom, the white block will have only five positions, which are either symmetrical or easy to become the front position. Restore the color of the top surface. In this step, the colors of the top surfaces of the four corner blocks should be restored. First, the colors of the top sides should be ignored, and they should be restored in the last step. Restore the top corner block and complete the recovery. In this step, the colors of the top four faces should be restored at one time to complete the restoration of the Rubik's Cube.