Step one:
Return to the bottom, also known as cross, which means cross reduction in English. Choose the white surface as the bottom, and the cross is located at the bottom of the Rubik's cube.
Restoring the edge is to make a cross on each surface. As a cross, it comes not from the surface, but from the layer. The first one is to spell a cross on the first one.
This is simple, but the cross must be correct, that is, the four sides and colors of the cross must be the same as the colors of the front, back, left and right central blocks.
Step 2: Return the bottom corner, that is, restore the four corner blocks on the first floor of the Rubik's Cube. Here are five different situations:
Step 3: Return the second layer of blocks, which is the step of restoring the four blocks in the middle layer of the Rubik's Cube. The following are three different situations:
Step 4: the top edge position, also known as the top cross, is that all the four top edge blocks of the Rubik's cube are adjusted to the top surface with the same top color.
In this step, the restore step will switch from left to right in the four situations mentioned above, that is to say, when you encounter a "point", it will be a "small turn" after you finish the action.
Then "one word", and finally "cross". So when you do this step, you have to look at the situation of the Rubik's cube in your hand, such as the "point": after you finish this action step, it is a "small turn".
Then we should adjust the top layer in the right direction and do this step, and so on, until the top layer yellow is reduced to a cross, and then the fourth step of restoring the Rubik's cube is completed.
Step 5: Vertex position, that is, all the top faces of the four corners of the Rubik's cube are adjusted to the top surface.
Step 6: Return the top edges, so that the color of the other side of the four top edges of the Rubik's cube is the same as the color of the other four faces. Step 6 of the order of the top four corners of the Rubik's Cube is completed.
Step 7: Return the vertex angle, that is, make the other two faces of the four vertex angles of the Rubik's cube with the same color as the corresponding face.
This is that the six sides of the whole Rubik's Cube can't be restored after the above three situations are restored step by step, but an infinite loop between situations occurs in the above first and second situations, that is, the situation becomes the second situation after it is completed.
There is an infinite loop phenomenon that the second situation is finished and then becomes the first situation. This special situation does exist, but the probability is very small. If you encounter this situation, your advice is:
Continue to repeat the first or second situation in the order of the top edge of the Rubik's cube. Generally speaking, the Rubik's cube can be restored by repeating it for 3 to 5 times.