The first step: first determine the names of the sides of this three-dimensional geometric figure: put the Rubik's cube on the desktop, and the one facing you is called the front; What sticks to the table is called the bottom; Call the top to face the sky; Make a cross with the same color on the top or bottom, which is called the top or bottom cross. In the process of operation, the bottom surface is always the bottom surface and cannot be changed. Each face has a centriole (no edges around it), four centrioles (only two corners) and four corners. Make a bottom cross first: for example, take green as the bottom, first find the central green grain, then find four central green grains, and screw all five color blocks onto one surface; Make a green cross so that the green+red color block is just between the red centriole and the green centriole. The cross at the bottom is finished. Congratulations! Step two, make a belt. That is, to be the middle layer. At this time, the corner particles on the ground are not ready yet. Look for the corresponding middle grain in the top and middle layers, and then: put the appropriate middle grain in the correct position of the belt. It sounds a bit unreliable and it's not difficult to do. For example, two centrioles, blue and green, with an inappropriate centriole A in the middle, rotate A to the top, rotate the top to turn the blue and green centriole to the position of A (the program is called replace), and restore the cross: one centriole is ready. And so on, get the whole middle layer. Step three, make the bottom four corners. Restoring the Rubik's Cube is to change the correct particles to the correct position without destroying the already correct particles. To do a good job in the bottom four corners, we must do two things: first, the needs of the bottom corners: such as yellow, blue and white; Second, where are the particles that meet the requirements? Finally, the corner particles that occupy a lot of land are pushed to the top, changed, and then the changed corner particles are transferred back to the bottom. This step is more difficult, and it is often found that the finished belt is damaged again: think about it yourself, how to keep the belt intact? Step 5, you have found that belts will be destroyed, but only one belt will be destroyed at a time. Therefore, you can leave a gap when adjusting your belt. In other words, the integrity of the other three bands can be maintained by repeatedly destroying a specific position. Now, please check it. The current situation is: the bottom surface is complete, the bottom edge is complete, and there is a gap in the belt. After the above basic steps are completed, it is the stage to exert your imagination and flexible thinking. The following is in strict accordance with the formula. Step 6, let's check the formula of belt filling. Now, the bottom floor, whether it is the whole downward side or the circle on the side, is in a line. It's beautiful. The middle layer, except one corner, is on a line ... there are several States, either the upper layer or the place where the color is reversed, and one of them may be fine. Our task now is to adjust the angular position of the top floor while correcting this gap. In fact, the above three situations can all become a state, that is, a state of going up a storey still higher. For the other two, if you press the following formula once, it will become the state of the next level. Let's make sure first. The top filler has two faces, one facing upwards and the other facing sideways. Well, we rotate the top layer and aim the color of the side of the filler at the center of the side of the same color. We decide whether the corner particles on the left and right sides of the filler are close. Only one color is the same, and both colors are the same, which is called pro. For example, white, red, green and white, red, yellow and blue are close. We see a gap on the left or right. We will find two faces related to the gap: the face with grain B (front) and the face without grain C. Judge as the parent: rotate the top layer by 90 degrees to keep the corresponding grain away from the gap; Rotate c to push the corner particle A below the notch to the top; Rotate the top floor to move the speaker A laterally (from left to right; From right to left); Rotate c to restore the bottom layer; Rotate the upper layer and turn the horn A back above the belt gap; Rotate b to move the corner gap of the bottom layer to the top layer; Rotate the top layer to align the bottom color; Reduce the bottom layer. Determine as sparse: rotate the top layer by 90 degrees to keep the corresponding intermediate particles away from the gap; Rotate c to push the corner particle A below the notch to the top; Rotate the top layer and push keratin A away from yourself; Rotate c to restore the bottom layer; Rotating the upper layer pushes keratin A away from itself; Rotate b to move the corner gap of the bottom layer to the top layer; Rotate the top layer to align the bottom color; Restore the bottom. The seventh step, first determine the cross formula of the face, the face facing you is B, and the right is C.C. Turn 90 degrees; Top to 90 degrees, B to 90 degrees; Turn the top 90 degrees, B 90 degrees, C 90 degrees. Sometimes it needs to be repeated many times. It is necessary to ensure that all the top particles are in the corresponding positions, that is, red, blue and Huang San corner particles correspond to red, blue and Huang San center particles. It can be achieved by repetition. Step 8: Rotate the vertex angle in situ. If the top span has been completed and the position of the corner particles is correct, you can start this step. Note that there are four at a time. Feel the rules yourself. C turns 90 degrees, top turns 90 degrees, top turns 90 degrees, top turns 90 degrees, C turns 90 degrees, and top turns 180 degrees to restore the bottom. C turns 90 degrees, top turns 90 degrees, top turns 90 degrees, top turns 90 degrees, C turns 90 degrees, and top turns 65438+. It seems to have been finished. However, the top grain is often not well done. Combining two sets of formulas in the eighth step can affect the placement position of the top particles. Just try it yourself. Wish you success!