Reference materials with pictures
How to play the Rubik's Cube (transcription)
The Rubik's Cube was once known as one of the three major intellectual toys in the world, but now I dare not do it Said. What? What are the other two? You must remember: those are our Chinese Nine Links and Capture and Release Cao!
The Rubik's Cube can be taken apart. nonsense! But... have you ever opened it? If not, quickly remove the Rubik's Cube piece by piece. Hey, does it feel like beating DOOM monsters? Have you removed it? It can be seen that in addition to the six center blocks of different colors on the skeleton, there are 8 corner blocks and 12 edge blocks. The center block has one color, the edge blocks have two colors, and the corner blocks have three colors. After all, no two bricks are exactly the same. The central building block on the skeleton cannot move, so the relative position of the central building block and the central building block is determined and unchanged, so the correct position of the building blocks on the corners is also unchanged. For example, for a red, yellow, and blue corner building block, its correct position is at the corner of the corresponding face of the red, yellow, and blue center building block. Our task is to move the edge blocks and corner blocks to their own positions.
Without further ado, let’s take a look at my plan:
Picture 1
From now on we will start playing the Rubik’s Cube. The task is to complete one side of the Rubik's Cube.
First choose the color of the surface you want to play with. Here I choose blue for teaching, because I like blue ^_^. We call the surface where the center block of this color is located the base surface.
Figure 2 Figure 3 Figure 4
In order to prevent players from wandering around and finding the direction of the Rubik's Cube, we stipulate that the Rubik's Cube should be placed as shown in Figure 2. In addition, In Figure 3, when we want to transfer the outer blue block to the black block on the base surface, we cannot affect the shadow block. This is also the difficulty of playing the Rubik's Cube. For other uncolored building blocks, they are all insignificant building blocks. You can ignore them and focus on the operation blocks outside the base surface, the target positions of the operation blocks and the blocks that cannot be affected. (Note: During the operation steps, the shadow blocks can be moved, but it must be ensured that the shadow blocks remain unchanged after the step is completed)
For the completion of one side of the Rubik's Cube, we completed the operation blocks one by one. Eat it one bite at a time! When turning, you must find the real target of the operation block and pay attention to the additional color of the operation block, otherwise it will fail. As shown in Figure 4, the yellow and blue blocks are reversed with the green and blue blocks, so it is useless if the blue side succeeds.
The following are some of the most basic techniques for transferring the operation block to the base surface, but you need to figure it out carefully!
Figure 5 Figure 6
Brief description: The shaded block in the picture is the target location. Note that I have not marked the unaffected building blocks. In addition, pay attention to the difference between the operation block and the target position. Different positions use different methods. As shown in Figure 6, the blocks marked in blue outside the base surface can be rotated to reach position A or B, and then use method 1 to complete the task of reaching the destination position.
Figure 7
Figure 8
When the target block is on the back, you can use the three steps in Figure 7 to turn the target block to the side, and then to Position A, use method 1 to complete the task of reaching the destination location. By analogy, as shown in Figure 8, the blue-marked blocks outside the base surface can be rotated to reach the A position, and then use method 2 to complete the task of reaching the destination position.
Figure 9
When the target block contacts the base surface, you can turn the target block to the side through the three steps in Figure 9, then turn to position A, and use method 1 to complete the arrival destination task.
Figure 10
Figure 11
Now that we have finished talking about how to play with corner blocks, let’s talk about how to play with edge blocks. (Figure 10)
Bypass: As shown in Figure 11, the blocks marked in blue outside the base surface can be rotated to reach the A position, and then use method 4 to complete the task of reaching the destination position.
Figure 12
Figure 13
By analogy: As shown in Figure 13, the blocks marked in blue outside the base surface can be rotated to reach A location, and then use 5 methods to complete the task of reaching the destination location.
Figure 14
Figure 15
By analogy: As shown in Figure 15, the blocks marked in blue outside the base surface can be rotated to reach A location, and then use 6 methods to complete the task of reaching the destination location.
Figure 16
When the target block contacts the base surface, you can use these three steps to turn the target block to the side, then turn to position A, and use method 5 to reach the target position. task.
At this point, all the skills on the Rubik's Cube side have been explained. Next we will lay bricks on the house!
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Figure 17
As shown in Figure 17 (the gray is the white color block), we have completed the work of the base surface (blue), now we no longer care about the base surface, we put the base surface at the bottom. The first thing we have to do is to turn the center blocks on the four sides to the corresponding positions so that each side has four inverted 'T' shapes of the same color, as shown in the red box in the picture. Our task then is to fill both sides of these inverted 'T' shapes with the correct edge bricks, as shown in the shaded area on the upper right of the picture.
Figure 18
I don’t need to say more, right? Will you understand? Use these eight moves to move the edge block to a shaded position. When turning, be sure to pay attention not to mess up the direction of the Rubik's Cube!
Figure 19 Figure 20 Figure 21
By analogy: As shown in Figure 19, if the edge building blocks marked with circles are red and green, they can be rotated to reach A. location, and then use method 1 to complete the task of reaching the destination location.
Special situation: As shown on the left side of Figure 20, the red and green edge building blocks are already in the correct position, but the colors are reversed. What should I do? :( There must be a method, as shown on the right side of Figure 20. If you move an edge building block (circled in the picture) that has nothing to do with the overall situation to that position, the red and green building blocks will naturally come out, right? :)
Okay, we have laid the bricks for the Rubik's Cube Building (Picture 21). It seems that two-thirds of it is completed. Only the superstructure is left. All nine building blocks in the superstructure are with The top colored (pink) building blocks, ah, don't underestimate these nine - there is still a long road ahead!
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Now, let's go to the church Go inside, cross yourself devoutly and pray: Let me learn to play the Rubik's Cube quickly!
The task we have to complete today is to draw a cross on the top of the Rubik's Cube, as shown in Figure 23.
Now I am going to explain it in detail, everyone, please listen carefully!
Figure 22 Figure 23
As shown in Figure 22 above, there is a method 1, which has six steps. What exactly does it do?
There are five Rubik's cubes below Figure 22, which represents the formation process of the cross: when there is only one pink block on the top surface, use method 1 to form a "one" character, and then use Method 1, form an "L", turn the top surface 180 degrees, then use method 1, to form a cross.
When the process of method 1 is completed, it will not affect the completed bottom and middle layers. Isn’t it interesting? Future methods will become more and more demanding, affect fewer and fewer building blocks, and become more and more complex.
Okay, the cross is done (Picture 23), we will be more confident in completing the Rubik's Cube building in the future!
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Hello! Class is on! Still dozing off!
The task we have to complete today is to get the four corner blocks of the superstructure "in place" and put them in their correct positions.
Figure 24
First of all, as shown in Figure 24 above, we call the four corner blocks on the top surface respectively the upper corner blocks, the lower corner blocks, the left corner blocks and the right corner blocks. Then let’s look at Figure 25 below (gray instead of white). What can be achieved with the following two methods is: the position of the upper corner building blocks remains unchanged, and the left corner building blocks, right corner building blocks and lower corner building blocks move clockwise (or counter-clockwise). The position of the hour hand) is exchanged, and the bottom and middle building blocks are kept unchanged, and the top surface remains a cross.
Picture 25
Am I clear? ★そ∏⒋〔◇■&→
Of course, not everything is smooth sailing. Figure 26 below shows two situations of diagonal exchange, which can be completed using the following "dead" method. When you become "familiar", "skills" will naturally arise, and you will find that this problem is very simple.
Figure 26 Figure 27
Okay, we have moved the four "eaves" of the superstructure to where they should be. What we have to do now is to move the "eaves" All the top color blocks are turned over, as shown in Figure 27.
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Through the following two figures in Figure 28 This method can keep the upper corner blocks unchanged and rotate the left, right, and lower corner blocks to achieve the purpose of completing the top color.
Picture 28
Haha, but there is nothing so "free" (cheap) in the world. There are several special situations in Figure 29 below that require special handling:
Picture 29
Are you a little upset after looking at the five "building block crabs" showing their teeth and claws in Picture 29 above? You shouldn't memorize this process, you should remember: Move the corner block that is not on the top surface to the position of the upper corner block, and then use method 1 or method 2, and things will turn around. (I really can’t describe it, hee hee. I can only understand it but not express it in words. It depends on your understanding:)
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Today I will teach the last lesson, 5555555555. The teacher is leaving after the lesson. Aren't you sad?
What we need to do is move the four edge blocks of the Rubik's Cube superstructure to the correct position. Hi! Look at the majestic and continuous final blow of my "Dugu Six Swords"! (Picture 30)
Picture 30
(Method 1 is to turn counterclockwise, method 2 is to turn clockwise)
Haha, don’t faint, finally Of course, this move is quite powerful. Does it look like the "Dragon and Tiger Dance" of "The Dragon" (Ryo Sakazaki) in "The King of Fighters"? Closer to home: Method 1 of "turning a square" is actually method 1 of "square" + method 2 of "square", method 2 of "turning a square" is actually method 2 of "square" + "square" Method 1. Of course, there is also a situation like Figure 31 below. I believe this problem can be solved.
Picture 31
At this point, the Rubik's Cube Building has been completed, enjoy the joy of success! ^_^