The top surface of the Rubik s Cube is crossed after two layers on one side, and all the faces are r

Is the top cross good? Okay, you have to align with the center color, this is the top layer, and the four center blocks on the top layer are all the same color or only two are the same color, and one of the colors is facing the right and one is facing your face' r' u' f' u2 f u ru' r'Now the four center blocks are all four small pieces of color on the left and right, and then we have to align the four small blocks on the top layer that are consistent with the center blocks of each face, and of course, if your four small blocks are the same as the center blocks of each face, then don't move them, if you haven't already, there must be two small blocks in the top layer that are aligned, so you align them first, put one of the two sides of the alignment in the back, and one on the right rur'u r u2 r'Very good, your cross has been aligned with the center on all sides, and the next thing is to change the corners of the four corners as long as one corner is restored, you can see the picture:

The third-order Rubik's Cube introductory tutorial (layer first method) 1. Rubik's Cube color scheme: red on the top and orange on the bottom, white on the front and yellow on the back, blue on the left and green on the right 2. How to hold the Rubik's Cube: Hold the Rubik's Cube lightly with the thumb and middle finger of the left hand and the ring finger, hold the middle block in front of the thumb, hold the middle block in the back with the middle finger and the middle finger of the middle finger, do not hold it too tightly, and leave a gap in the palm.

3. Explanation of common formula symbols of the Rubik's Cube: f=front b=back back l=left left r=right right right u=up above d=down below Example: r is to turn the right 90 degrees clockwise, r'Turn the right side 90 degrees counterclockwise.

Step 5: Top surface restoration (** indicates the location of the yellow corner block on the top layer) This tutorial is the least memorable and most convenient tutorial selected from dozens of tutorials on the Internet, which is suitable for novices to learn and use. Recently, someone copied my answer and said that it was his own, speechless, and didn't look at when he was playing, how long had I been playing this!!

The steps and formulas of the third layer: 1. Hit the cross formula: f r u ri ui fi (flip edge) (may be used several times).

2. The formula to change the top color to the same: r u ri u r u2 ri (flip angle) (may be used several times). You only need to use this formula once after becoming a fish head) 3. Corner block homing formula:

li u ri u2 l ui li u2 l ri (you can swap the positions of the two corner blocks facing you at one time). Fourth, the prismatic homing formula: r2 u r u ri ui ri ui ri u ri

With one use, you can swap the positions of the three edges on the left, front and right).

It's because the foot blocks aren't done well, which is the difference between restoring one layer and restoring one side.

The Rubik's Cube, also known as the Rubik Cube, was first developed in Budapest, Hungary.

School of Architecture El Norn Rubik.

A mechanical educational toy invented by the professor in 1974. The Rubik's Cube has a variety of gameplay methods such as racing, blind twisting, and single twisting, and its popularity has endured, and it is one of the most popular intellectual games with large and small events held every year.

In the usual sense, the Rubik's Cube refers to the third-order Rubik's Cube in the narrow sense.

The third-order Rubik's Cube shape is usually a cube.

Made of resilient hard plastic. The regular racing game is to disrupt the Rubik's Cube and then restore it in the shortest possible time. In a broad sense, the Rubik's Cube refers to all kinds of geometry that can be disrupted and restored by turning.

Rubik's Cube and Huarong Dao.

France's single aristocracy (independent diamond chess) is also known as the three incredible minds in the world of intellectual games.

Start:

Rubik Erno, a Hungarian professor of architecture and sculpture, made the first prototype of the Rubik's Cube, inspired by the Danube, in order to help his students understand the composition and structure of the cube of space.

in the gravel. In 1974, Professor Rubik invented the first Rubik's cube (then known as the Magic Cube) and was granted a Hungarian patent in 1975.

HU170062, but did not apply for an international patent. The first Rubik's Cube was sold in toy stores in Budapest in 1977. Unlike Nichols' Rubik's Cube, Professor Rubik's parts are snapped together like tenons, not easily separated by external forces, and can be made of any material.

In September 1979, Ideal Toys brought the Rubik's Cube to the world, and in 1980 it was unveiled at international toy fairs in London, Paris and the United States.

After the exhibition, Ideal Toys changed the name of the cube to RUBIK'S Cube, in May 1980, the first batch of Rubik's cubes were exported in Hungary.

The feet didn't get right. That's the difference between one layer and one side.

layer 1. <> side.

That's because your approach is wrong.

When playing the Rubik's Cube, the first layer of reduction must meet one requirement: that is, the face is the same color, and the side of the same color is facing down, at this time, the surrounding four faces must be the middle one and the color below it must be the same.

I hope you learn it soon.

To restore one side of the Rubik's Cube, you need to make a cross first, and then there will be three situations, and three different formulas are used according to different needs, as follows:

1. First of all, restore a cross, and 4 edges of the same color form a cross pattern.

2. The reduction corner block will encounter the situation of the missing block in the lower left, formula: d, l, d', l', as shown in the figure below.

4. The situation of the missing block in the lower right corner is opposite, the formula: d', r', d, r, as shown in the figure below.

5. In the case of the same block missing in the lower right corner, the formula: r' d, r, d', r', d, r, as shown in the following figure:

Pro, you need 8 steps. 1. First of all, the four edges are screwed well, the edges are the two-color blocks of the third-order Rubik's cube, 2. Turn the bottom cross well, this is aligned and screwed directly up, the difficulty is not great, and the next is the four corner blocks. I'm going to start with the simplest way, and I've summarized that there are about three ways to do it, because you don't know much about it, so I'll start with the simplest.

3. The white one at the bottom right can be turned directly up, but it will squeeze the right edge down 4, and the position of the other piece will be behind 5, then, restore the angle just now, the corner block at the bottom right is vertically and directly up, and twist it in the opposite transverse direction outward, and it will be twisted to the left below: 6. So that this piece and the middle edge of the bottom will go to the left: 7, at this time, it is still the angle just now, and the right hand side of the right side that you screw up 8 will screw back to the left.

Summary. Mirror Rubik's Cube top-level restoration method].

Handful. One or two layers of any flat side up, the third layer of the top cross must face the left palm, and then turn the edges that need to be turned over to the appropriate position, see if the edges are in place, if not in place, continue to do, do it a few times, get the edges to be turned over to the left front, and then do the formula. When it's done, the top layer is flat.

1.To make a cross, start with the smallest block cross, (i.e. the bottom cross of a normal Rubik's cube).

2.Then restore the layer of the smallest block, (i.e., the first layer of the normal Rubik's Cube).

3.Restore the second layer (i.e., not too big or small edges) (i.e., restore the second layer of the ordinary Rubik's Cube).

4.The top cross is turned over, and the largest cross is flattened to turn it over (that is, the top cross of the ordinary Rubik's cube).

5.Flatten the top surface (i.e. flip the top surface of a regular Rubik's Cube).

6.The four corners of the top surface are aligned, (i.e., the normal Rubik's cube reducts the corner blocks).

7.Make the top four edges well, (i.e., reduce the edges).

How to restore the top layer of the mirror Rubik's Cube.

Hello, the pro-recovery method is in the following.

The top layer of the mirror Rubik's Cube is also a disadvantage of the original method.

One or two floors of any flat side up, the third layer of the top cross must face the left palm, and then turn the edges that need to be turned over to the appropriate position, see if the edges are in place, if not in place, continue to do, do it a few times, get the edges to be turned over to the left front, and then make the formula. When it's done, the top layer is flat. 1.

To make a cross, start with the smallest block cross, (i.e. the bottom cross of a normal Rubik's cube). 2.Then restore the layer of the smallest block, (i.e., the first layer of the ordinary Rubik's Cube) to leak lead.

3.Restore the second layer (i.e., not too big or small edges) (i.e., restore the second layer of the ordinary Rubik's Cube). 4.

The top cross is turned over, and the largest cross is flattened to turn it over (that is, the top cross of the ordinary Rubik's cube). 5.Flatten the top surface (i.e. flip the top surface of a regular Rubik's Cube).

6.The four corners of the top surface are aligned, (i.e., the normal Rubik's cube reducts the corner blocks). 7.

Make the top four edges well, (i.e., reduce the edges).

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1. The restoration of the first face of the Rubik's Cube is divided into two steps, the first step is to turn the center of the face into a cross, and the second step is to return the top corner of the face. Generally, when restoring the Rubik's Cube, the bottom surface will be restored first, and the remaining part will be restored after the bottom surface is put together. First choose a surface as the bottom surface, determine the center color block of this surface, you will know what color this surface is, and pay attention to the side while determining the bottom surface, and the center color block of the side should also be consistent with the color of the bottom edge of the side.

This step is a bit complicated at the beginning, but it is relatively simple when it comes to actual operation, so there is no specific formula for this step.

2. When turning the bottom edge, pay attention to the color on the other side of the edge, find the side of the center color block and the side of the edge of the edge of the color of the same color, and then rotate the edge to the same surface as the center color block, so that it will be easier to find the trick. After the cross of the bottom surface is turned, the top corner of the bottom surface is also turned out, that is, the top corner of the top surface is returned to position, and the first layer is restored after this step is completed. After restoration, the bottom surface is restored, and the bottom layer of the side around the bottom surface is also restored.

The color of the bottom layer of the side should be the same as the center color block of the side.

3. There are two formulas for this step, which are divided into five situations. The formula for the return of the top corner of the bottom surface is relatively simple, the formula is (rur) and the formula is (fuf). These two formulas can be used separately, in combination, and sometimes repeatedly, depending on the situation.

After the restoration according to the formula, the first side of the Rubik's Cube is restored. Before using the formula, you must observe more, so that you can determine the distribution of the color patch on the bottom surface, and choose the correct formula to quickly restore.

01 First find a random color and directly restore it to a complete surface, this step is not difficult.

02 Four-sided bottom layer and center block restoration:

Taking the complete surface restored in the first step as the base, the trapezoidal shape formed by the bottom layer and the center block of the four sides is restored, as shown in the following figure. While the second step is completed, the side that is completed in the first step remains intact.

03 The complete surface completed in the first step has always been used as the bottom surface:

Facing oneself is the "front". The lower two layers of the four sides are intact, which means that the lower two layers of the four sides are restored to completeness, as shown in the figure below.

04 Restore the top layer of the cross:

After completing the third step, the next step is to restore the cross on the top layer, as shown in the figure below.

05 square block on the top floor of the four sides (cross homing):

The middle block on the top floor of the four sides, that is, the square in the middle of the top layer of the four sides corresponds to the center block of the middle layer. , as shown in the figure below.

06 Four sides, top layer, two sides of the square alignment (upper corner homing):

The alignment of the squares on the top two sides of the four sides refers to the alignment of the squares at the upper two corners of the four sides, and the homing does not mean that the colors should be aligned, as long as the color of this piece corresponds to the color of the three sides where it is located, as shown in the figure below.

07 Top Floor Completed:

The top-level completion refers to the matching of the colors of each side of the four corners of the top layer in the state of returning the four corners of the top layer in the sixth step, as shown in the following figure.

The Rubik's Cube can be restored according to the formula, and the reduction formula is as follows:

The first step is to make a white cross;

The second step, the first layer of formulas: right order, up order, right inverse, up order, right order, up order, up order, right inverse;

The third step and the second formula: right shun, upper shun, right shun, upper shun, right inverse, upper inverse, right inverse, right inverse, right inverse;

The fourth step, the second layer of the formula is reversed: right inverse, upward inverse, right inverse, upward inverse, right inverse, upward straight, right straight, right straight;

The fifth step and the third level formula: right order, up order, right inverse, up order, right order, right order, up order, right order.