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Seven steps play the third step Rubik's cube restoration formula diagram + video

2018-05-05 22:24:00

Many new students do not like to memorize formulas, and they are not used to memorizing many color distributions, so I recommend the method that I found easiest to memorize when I first learned the Rubik's cube to new students. I hope this tutorial can help you. When you are familiar with this method, you can learn more advanced methods and know more color distribution. Because this method has a lot of loops and wastes a lot of time, so my current record with this method is exactly 2 minutes. But I'm sure you'll be able to do it in two minutes! To master the Rubik's Cube, you first need patience (after reading this long article), study (finishing the Rubik's cube for the first time is a laborious process), and hundreds of practices. Because 90% of the steps need to be memorized in the brain, and then the repeated practice to get the feel into a habit. This stage requires hard work, but the sense of accomplishment that comes from completing the cube in the shortest possible time is unparalleled! Without further ado, this is the tutorial. To explain, the word is more important than the figure, we must carefully read the word, the figure is only auxiliary.


The third level Rubik's Cube


About the third order Rubik's cube, you need to know: no matter how you turn, the middle block of each face is fixed. So the block color of each side determines the color of that side. No matter how you turn, the block with three colors in the top corner will always be in a certain top corner; The block with two colors in the middle of the edge [Figure: 2-edge block] will always be in the middle of a certain edge. The so-called formula is to use a certain routine to tell you how to turn each side. The letters U, D, L, R, F, and B represent the six faces of the cube. As shown above (the rear side (B) is usually not used, so it is not shown). Adding a prime (') to the end of the letter means that the face is rotated counterclockwise, and anything without a prime is rotated clockwise. For example, R 'means counterclockwise turn on the right side.


The first cross (the first step is very important !!!!) Let's take the white side for example. To turn out a face, you first have to turn out a cross. But the cross is not just any white piece. When turning out the cross, it must be ensured that the color of the middle block of the upper edge is the same as that of the surface. This step requires a bit of trial and error. As shown below: First locate the edge you want to restore. The side facing you is blue, and the top layer is white, so you have to first find where the [white-blue] block actually went, and then restore it to the original position, that is, the position No. 1 marked with the yellow shadow in the image below. After the [white-blue] block has returned, turn down the top layer of the cube, let the blue and the blue face of the [white-blue] block connect, and then look at the face to the right of the blue face. As shown in the figure, it can be known from the face block that the right side of the blue side is the red side, (Well, here I really can't help but spit, it seems to be the red and blue when making the picture, everyone... Make do with automation and imagine..... (~ ▽ ~)), so the [white-red] block should be transferred to the second position. When you find the lost [white-red] block, turn it to position 2 without turning the top layer as much as possible. Just make sure to turn it to position 2 in the image below, and then turn the top layer again, and you'll see that the blue in position 1 is aligned with the blue block, and the red in position 2 is aligned with the red block. Use the same method to locate the [white-green] and [white-orange] blocks. The text explanation is really vague... If the video example helps you with the first step, it is recommended that you practice this step over and over again before moving on to the next step.


Step 2 Top corner Return & Complete the first layer This step will return the scattered white top corner block. The first step is to confirm the position of the white corner block with the same color as the adjacent three sides. As shown below, the color of the top corner block closest to you should be [white-blue-red], so find the actual position of [white-blue-red] and move it to the top corner. When the white area of [white-blue-red] is actually located in the bottom circle (not the bottom surface), first rotate the bottom layer horizontally, so that the white part of the [white-blue-red] top corner block is located in the lower top corner of its target position (as shown in the figure), and then rotate according to the figure to make the bottom top corner block and the upper top corner block of the same column exchange. To complete a top surface top Angle. If the white area of [white-blue-red] is located in the top circle: in any of the ways in the following figure, interchange any bottom corner block with the top corner block, you can get the two cases in the following figure. If the white area of [white-blue-red] is located on the bottom surface: Swap the block with the top corner of a color mismatch (not [white-blue-red]) in any of the ways in the following figure, you can get the two cases in the following figure. To new people: It is recommended to practice turning out a surface at the beginning, and do not line up the two layers of colors first. Develop both a hand feel and an eye for Rubik's cube.


Step 3 Complete the second layer After completing the second step, the top layer of the cube white, the upper circle should all return to the position. Turn the cube over so that the white side is facing down. Now the opposite side of white (should be yellow) is the upper layer. The following formula, rotation will be yellow as the top (U), white as the base (D). (as shown below) This step will restore the second layer (the second layer is actually only the middle block of the edge). First of all, we need to confirm the position of the middle block of the edge with the same color as the adjacent sides. In the image below, the middle block closest to you should be the [red-blue] block. When the red area of [red-blue] is located in the top circle, the top layer is rotated horizontally, and the following two conditions occur. In the first case, the red area of [red-blue] can be adjacent to the red face block directly in front of (F), while the blue area of [red-blue] should belong to the right side (R). In the second case, the blue area of [red-blue] can be adjacent to the blue area of the right side (R), while the red area of [red-blue] should belong to the right front (F). The center block of the edge can be returned by rotating as shown in the figure. When [red-blue] happens to be in its correct position, but the colors are reversed, use either of the following methods to move the [red-blue] block out. Move it to the upper circle and follow the method below. Using this method, all the intermediate blocks of the second layer can be returned, and the third step is completed.


After completing Step 3, your Rubik's cube should appear in one of the three conditions shown below. Note: The top layer (U) may have other yellow blocks in addition to the yellow blocks indicated in the figure, not them. As long as the yellow areas indicated in the diagram are yellow blocks. It doesn't matter what color the next two layers are, take red and blue as an example). Rotate the top layer (U) so that the top layer is the same as in one of the three cases below, and then rotate as shown. If there is no cross after this step, repeat this step (that is, rotate the top layer to make it into one of the following three, and then rotate according to the steps shown) once or twice, you can get the top cross.


The purpose of this step is to make the top 4 edge blocks all return. Rotate the top layer (U), if you can make one of the edges of the middle block (below the left, here take the [red-yellow] block as an example), and the other three can not be returned, then the [red-yellow] side (red face) is set as the front (F). Turn according to the steps shown in the figure, you can make all the middle blocks of the 4 edges return to the position, or the next situation appears. Rotate the top layer (U), if only 2 adjacent surfaces can be returned, the two sides where the two edges are located are set as the right side (R) and the back side (B). Follow the same steps to turn, can make the edge of the middle block all back. Rotate the top layer (U), if only the middle block of the two opposite surfaces can be returned, then choose a direction to rotate according to the following figure, that is, the above two situations will occur. Note: If you can't return all of the edges according to the above two conditions, repeat this step 1 to 2 times to return all of the 4 edges.


Step 6 Top top corner semi - homing why is it called semi - homing? Because this step can only make the top corner block move to its correct position, but it cannot guarantee that the three colors of the top corner block and the color of the surface are accurately connected. For example, the correct vertex block where the red - yellow - blue faces meet must be the [red - yellow - blue] block. If the top corner position is not [red-yellow-blue], you can use this step to move the [red-yellow-blue] block to the correct position, but after moving to the correct position, the following situation may occur, that is, the colors are just staggered. We'll put the misplaced colors back in place in step seven. When one or more top corner blocks are in the correct position, but the colors are not necessarily connected correctly: make any one of the top corner blocks in the correct position face you (the same direction as the following picture), and rotate the cube according to the steps shown in the figure to make all the top corner blocks half back. If not, repeat the procedure (with any of the correct corner blocks facing you, turn.... as shown). . If each top corner block is not in the correct position: choose a direction at will, rotate according to the steps shown, you can become the first case or completely return to the position.


Step 7 Top corner return & Rubik's Cube complete this step do not understand please pull to the end to see the video example yo ~ After the completion of the sixth step, the top four corner blocks should be located in the correct position, but the color is not matched. This step will bring the staggered top corner blocks back into place. Although there are many words, this is the easiest step! The job is almost done! First read all the following words and then try oh) No matter how many top corner blocks are still semi-homing at this time, choose a semi-homing top corner block, so that the top corner block below the left-hand diagram of the direction toward you. Keep repeating the illustrated steps (i.e., doing a four-step cycle). Here's a very important point! If you look at the diagram below, you loop through the four steps: R'-D'-R-D. If, when you keep cycling these four steps, the top corner block returns after the third step R, you must not stop at this time, you must continue the fourth step D, so that these four steps become complete! Note: After a top corner block is fully positioned, the next two layers of the cube may be disturbed, but it doesn't matter, not it, continue the following steps: Turn the top layer (U) clockwise, so that the other half of the top corner block is facing you, and keep repeating the illustrated steps, as described above, until the top corner block is also fully positioned. At this time, the next two layers of the Rubik's cube may be disrupted, not it. Turn the top layer (U) clockwise so that the other semi-homing top corner block faces you in the direction shown on the left of the image below, and repeat the same steps ………… (This time it should be seen that this is a cycle) After all the top corner blocks are completely returned in this cycle method, the Rubik's cube is completed! Finally, a statement: in the process of the seventh step, the next two layers are really messy, but it is not, according to the steps said in the top layer, to restore the next corner block! After all the top corner blocks are restored, the next two layers will not be fully restored!

Matters needing attention

Hopefully this tutorial will help you complete the Rubik's cube for the first time! Good luck to you!