In any case, open the board to 2x4 first, and don't rummage around. The idea of restoration: After the magic board is restored to the initial state of 2X4, it can return to the original state after four turns, which is the correct cycle. After the disruption, the pattern entered a completely different cycle state, and the pattern restoration is to convert the board in the wrong cycle into the correct cycle, so the essence of the pattern restoration method is to find the way to switch between cycle States. In fact, sometimes after the pattern is disturbed, the surface that can be flipped has changed. It used to be the side where the three rings are separated, but now it has become its opposite. Therefore, in the correct state, the surface that can be flipped is the front and the back is the reverse. Method 1: Function: On the basis of not changing the operation surface, switch the cycle: stack the board in 2x2 state from left to right, and then turn the board upside down, so that it can be opened up and down. The above-mentioned post mentioned the operation of "scrolling", which has the same effect as this technique. Manipulation 2: Function: Change the operating surface from left to right to the back to form a 2x2 state, and then open the front of the board. After this operation, the reversible surface of the board has changed, so don't take the wrong surface as a flip technique, otherwise ... With these two very simple techniques, combined with flip, we don't need any other complicated ideas, as long as we keep flipping, we can easily restore the pattern. My method is to restore the reversible surface after the board is messed up, and then flip it several times. If the pattern is wrong,Use technique 1 again. If it is still wrong (very common), then use technique 2 to switch faces, do several flips, and do technique 2 to come back. If it is still wrong, do technique 1 to switch the loop in the back state, and then do it again. ~ I don't know if it will help you ~