Detailed instructions on how to solve a rubik's cube. How to solve a rubik's cube in layers

The date: 2012-11-20 Editor: Zagumenny Vladislav

Stage 1. Get acquainted with the Rubik's cube.
The names of the parts of the Rubik's Cube:
Rib parts or ribs– parts with two colors. In total, the cube has 12 edge parts located in the middle of the edges.

Corner pieces or corners are parts with three colors. In total, the cube has 8 corner pieces located at the corners.

Central parts or simply centers– parts with one color. In total, the cube has 6 central parts located in the center of each face. The central parts do not move and represent the colors of their faces.
Centers always opposite each other:

White is the opposite of yellow.
- Orange is the opposite of red.
- Green is the opposite of blue.

Each side of the cube is denoted by a Latin letter

R- right side - the right side of the cube
L– left side – left side of the cube
U- top face - the top side of the cube
D- lower face - the lower side of the cube
F- front face - the front side of the cube
B back face - the back side of the cube.
Comment: the letter "i" after the letter of the face means reverse movement or movement counterclockwise when looking directly at the face.

Very important
When performing the movements below, keep the cube fully turned with one side towards you, as shown in the figure. The dark gray color in the pictures means that the actual color of these parts does not matter. Every movement is one fourth of a full turn 360 degrees.

Stage 2. Assemble the white cross.

A task: Holding your die so that the white center is on the top face (U), you must complete the white cross as shown in the picture below. Most of this stage is achieved by trial and error, but there are still a few tips.

Hints:
Be sure to remember that you need to collect the parts of the white cross in the following order - blue, orange, green, red.
Notice how the edges in the image above blend in with the top white center and the side red or blue center. This way you can easily determine that the edges are in the right places.
Keeping the white center position on the top face, move the white/blue edge to the bottom face (D). Next, rotate the bottom face until the white/blue edge is directly under the blue center. Now take the die so that the blue center and white/blue edge are on the right side (R).
Rotate the right side (R), until the blue/white edge is on the top(U) face above the blue center.
If your die looks like the one below, then take the die so that the orange center is on the right side, and assemble the side with the orange center in the same way.
If your die looks like the one below, then follow the sequence below, making sure the blue center is on the right (R) side.

In the same way, the remaining parts of the white cross are assembled.

Congratulations!
If your die has a white cross the same as in the picture, then you can go to stage 3!

Stage 3. We collect white corners.

A task: take the die so that the white cross is on the top face (U). Now you have to collect the white corners, and get a cube like in the picture below.

Hints:
The corners will have one white edge and 2 other color edges.
If the corner is already on the bottom face, rotate the bottom face until the corner is directly below where it should be. After that, your cube may look like one of the 3 pictures below.

Repeat the whole process for all four corners.
If the corner is located on the top face, then move it to the bottom face by following the sequence:

Now rotate the bottom face until the corner is directly under its location on the top face.

Congratulations!
If your white layer looks like the picture below, then you have completed one third of the cube and you can proceed to stage 4.

Stage 4. We collect the middle layer.
A task: Take the cube so that the fully assembled white layer is on the bottom face. Now you need to assemble the middle layer by placing the side edges in their places.

Hints:
Pay attention to the vertical blue stripe (it can also be red, orange, green) - this is critical.
Assemble this vertical stripe by rotating the top face until the color of the edge on the top face without yellow matches the color of the center of the face. The color of the top part of the edge on the top face determines the direction of movement of the edge, that is, in which direction this part should move.
1) If you move the edge in the same direction as in the picture, then follow the sequence of pictures below.

2) If you move the edge in the same direction as in the picture, then follow the sequence of pictures below.

Repeat these steps until all side edges are in place.
Comment: if one of the edges is already in place, but not properly oriented, follow one of the sequences above and it will be in the top layer. After that, follow the appropriate sequence of actions to place the edge back into place in the middle layer.

Congratulations!
If the bottom two layers on your cube look the same as the picture below, you can proceed to stage 5. You have passed two-thirds of the way!

Stage 5. We collect the top layer. We get a yellow cross.
A task: compare the state of the yellow face of your die with the patterns below. Then follow the appropriate sequence.
Clue: the yellow parts on the top face should not yet match the color of the side faces.
Step one: Collect the yellow cross.

Switch to step two and start collecting the corners of the yellow face.

Perform the following sequence of actions:

Option 3.

Option 4.

Step Two: Make all the corners of the top face yellow.

Take a look at the top face and match the state of the die with the options below.
If there are no yellow corners on the top yellow side, then you must take the die so that the yellow side of one of the corners is on the left side of the die. See drawing.

If there is one corner on the yellow face, follow the sequence below.

Option 3. If there is not a single yellow corner on the upper yellow face, and there is also not a single corner that could be used in option 1(that is, all corners have faces on the right). Then take the cube as shown in the picture below. The yellow part of the corner should be on the front face of the cube.

Follow the sequence below 1, 2 or 3 times to get a fully assembled yellow face. After each execution of the sequence, re-compare the state of your die with the options described above.

Congratulations!

If your cube looks like the one in the picture, you can go to stage 6!

Stage 6. We put the yellow corners in their places.

Correct name " Rubik's Cube». Rubik- Hungarian sculptor and inventor of the popular puzzle. The Rubik's Cube was invented back in 1974, and since then its assembly has occupied the thoughts of all mankind.

This puzzle is a plastic cube consisting of 26 cubes that can rotate around the three internal axes of the cube. Each side is painted in a certain color and consists of 9 squares.

By rotating the sides of the Rubik's Cube, you can change the arrangement of the squares. The goal is to return the squares to their original position so that each face consists of squares of the same color. It is not so easy to do this. Many people can only solve a part of the cube on their own.To complete the puzzle, there are certain rotations, algorithms calculated using formulas.

We suggest that you familiarize yourself with one of the algorithms for collecting a 3x3 Rubik's Cube

The easiest way to solve a rubik's cube - remember with what rotations it was disassembled and repeat them in reverse order. However, this option is available only if the cube was originally assembled. If the cube is disassembled, it is difficult to reassemble it. Intuition, spatial thinking or randomness can help here. But it is better to remember the algorithm for collecting the cube. There are several of them.

The traditional name for the algorithm smallest number the moves of the Rubik's cube - "God's algorithm". The maximum number of moves in this algorithm is the “number of God”. In July 2010, it was proved that such a number is 20. That is, with known algorithms, you need to make at least 20 moves to solve the Rubik's cube.

Collecting a cube for speed is a whole sport called speedcubing. ) . There are competitions between speedcubers, and even blind assembly competitions!

You can also look video how to solve a rubik's cube step by step for beginners:

How to solve a Rubik's Cube

The Rubik's Cube is a famous puzzle toy designed and patented by the Hungarian architect Erno Rubik in 1974-1975. A few years after the start of mass production, in the 80s, the toy made a real “boom”, becoming the leader in sales worldwide.

The puzzle is still popular today. And although it can often be found on sale among children's products, it would not be entirely correct to call this three-dimensional puzzle a toy.

Today, speed cube assembly competitions are held all over the world. People of all ages take part, and the nominations are divided by discipline (by the number of faces).

The current speed record for a classic 3x3x3 cube is less than 5 seconds! Impressive, isn't it? Especially when you consider that the average time for assembling a cube for an unprepared person can take from several hours to several years.

In order for the assembly of the cube to bring you only pleasure, and subsequently take no more than 20 minutes, we suggest that you familiarize yourself with the instructions, which will describe in detail the most common assembly algorithm. After that, you will not wonder: Rubik's Cube how to collect all the faces?

first look

Before you solve the Rubik's Cube, you need to familiarize yourself with the main elements of which it consists. This will not only help to better understand the principles by which it functions, but also to understand the terminology so that in the future you can use formulas for quickly moving faces, cubes.

Recall that the article will focus on the standard or classic version of the 3D puzzle, the 3x3x3 cube. In total, this design has 20 movable elements conveniently located on the frame (i.e., fixed base). Namely - 12 edges and 8 corners. The core or the middle, central, cube of a face (plane) is not considered a moving element. Knowing only this fact, you can build a strategy for the first stages of the assembly. After reading the article, you will not wonder, how to solve the Rubik's cube correctly?

Ribs are not considered as moving elements, as You can't move them independently either.

The classic version of the 3x3x3 cube consists of 6 primary colors: white, yellow, blue, green, red and orange. But today, of course, you can find other options. Including the faces, which, after a successful assembly, will make up a whole picture (like a puzzle).

Main elements

1. The central elements of the cube or "core" - there are 6 in total. One for each side. They never participate in the movement, so they are always in their place. If you don’t know how to solve a Rubik’s cube correctly, then we give you a hint: you need to start with the central elements, the cores. That is, the remaining elements of the puzzle must be built around correctly located cores. The colors of the central elements fully match the color of the sides.
2. Corner elements - cubes located at the corners. In total, the classic puzzle model (3x3x3) has 8 cubes, each of which has 3 different-colored sides, depending on which side it is adjacent to. For example, a cube at the junction of white, green and red faces will consist of these colors. Therefore, it is important to consider this information during assembly. That is, make sure that each color of the corner element matches the desired side - the central element (core).
3. Edges - cubes that are located between the corner elements and consisting of two different colors (depending on which face they are adjacent to). In total, there are 12 of them in the 3x3x3 model. Therefore, during assembly, it is important to ensure that each side of the rib matches the color of the central cube (core).
4. Side (layer) - the plane of a 3x3x3 cube, consisting of 9 cubes of the same color. In total, in a classic cube there are 6 sides of different colors.

The assembly of the cube is carried out precisely by turning the sides. At the same time, we clearly see that by moving, for example, one side clockwise, the corner elements of the cube remain corner elements, and the edges remain edges. It is this information that gives us reason to believe that each element described above belongs to a certain type, which always remains unchanged. After turning the puzzle a couple of times in your hands, can you start thinking about how to solve a Rubik's Cube using the knowledge you just gained about its main elements?

Alternate assembly of the cube

There are a huge number of different combinations and secrets for quickly building a cube. Most of them are suitable for professionals. For those who are just getting acquainted with the puzzle, we recommend starting with the most common method of sequential assembly.

With its help, the first (top layer) is first assembled, then the middle is built, and only then the bottom side. This method will help you better understand the principles of assembling a cube, it is easy to remember, and some of the formulas (especially for assembling the last, lower side) can be used independently and subsequently assemble the puzzle almost independently.

Rubik's cube how to solve the first layer?

The first thing to do is to choose the side from which the assembly process will begin. Further in the article, all subsequent steps, formulas and tips will be described taking into account the chosen side. In our case, yellow, respectively, the lower, opposite layer for yellow will be white (this order is found in almost all models of the classic cube).

You are free to choose any other color, but in order to avoid confusion with the wording, we recommend that you do everything strictly according to the instructions. Otherwise, in the last stages of the assembly, you will simply get confused with the colors.

Rubik's cube how to solve a cross?

So, the color from which the assembly will begin is selected - yellow. Therefore, we proceed to the assembly of the "cross". To do this, find the yellow side on the disassembled cube, that is, the layer that will have the yellow color of the central element of the Rubik's cube. How to assemble it quickly:

There is no specific algorithm for assembling a cross. Therefore, it is best to try to do it yourself. It's not as difficult as it seems. If you are not able to assemble the cross yourself, then the next steps may seem too complicated for you.

If you can’t assemble the cross the first time, then leave the puzzle alone for several hours or even days, and then try to assemble the cross with renewed vigor. Please note that you will have to assemble the cross 4 times, that is, for each side of the cube.

Rubik's cube how to collect corners?

As soon as the cross is assembled, the following elements must be returned to their places - the corners. If you were able to cope with the previous task without difficulty, then the solution of this one will not seem something difficult. When assembling the corner elements, it is important to remember that it is not enough to simply put the yellow corner in place of the yellow one. It is necessary that each of the three colors of the selected corner match the color of the core. In other words, the yellow side of the corner die should be on the yellow side, the blue side on the blue side, and the green side on the green side. The algorithm will be as follows:

1. Take the cube so that the cross you just completed is at the top (looking at you).
2. Find the corner you need on the bottom layer of the cube. Wherein Special attention pay attention to what color the other two faces of the selected cube are.
3. Scroll the bottom side (in our case, white, because it is the opposite of yellow) so that the selected corner is just under the place where you want to put it. That is, in parallel.

The yellow cube "looks" to the left.

1. Rotate the bottom side to the left (clockwise).
2. Rotate the side face, which is supposed to put the corner "on itself", that is, lower it down.
3. Return the bottom face to its place (the one that we rotated in step 1), that is, rotate it to the right.
4. Return the side face from step 2 to its place up.
5. After the actions taken, the yellow cube from the “looking to the left” position will return to its rightful place.

By analogy with this method, return the cube from the “looking to the right” position.

If the desired angle is located below, that is, on the underside of the cube, then it will be necessary to first raise it, and then return it from the “looking to the right” position.

Attention! If you can't find the yellow corner at the bottom, then it's at the top, it's just in the wrong place. In order to return it to its rightful place, you just need to move it down and then return it from the “look left” or “look right” position according to the formulas.

The described steps for returning the corners must be repeated until the first layer is completely assembled.

Assembly of the middle layer or letter T

As soon as the top layer is fully assembled, that is, all the corners and edges are in place, then you can start assembling the middle layer. The first thing to do is to return the cubes to their places so that they form the letter T. To do this:

1. Flip the cube so that your chosen (and already fully completed) main color (yellow in our case) is on the bottom.
2. In the top layer (in our case, with a white core), look for the edge that does not have white cubes (on all sides!).
3. Rotate the top layer until the edges of this cube and the core meet and form the cherished letter T.
4. As soon as you collect the first inverted T, you can proceed to the next step. Namely - moving the selected cube to "its place". Therefore, the algorithm will differ depending on the initial position of the edge.

From the initial position, the cube must be moved to the right

From the initial position, the cube must be moved to the left

Attention! If you cannot find the cube you need (in our case, the one that does not have white color), then this means that it is on the middle side, but not in its place. Move it to the top layer and only then return it to the position of the letter T.

Remember that you will have to repeat this step 4 times. That is, first make the letter T, and then return the edges to their places for each layer. After that, the first two layers will be collected and you can proceed to the next step, which will help you understand how to quickly collect the cube to the bitter end.

Second cross

Before you solve the 3rd layer of the Rubik's Cube completely, the first thing to do is to collect the cross. Similar to the original step. But this is all complicated by the fact that this must be done in such a way as not to disturb and confuse the two layers that have just been assembled.

The first thing to do is to move all four edges of the cube that have white on them. upper part. It is also possible that the ribs will already be in their places. In this case, you can safely skip this step and move on to the next one. For other cases, in which it is still necessary to return the white edges to the top, we recommend using the following algorithms. They differ depending on the position they are in.

If they are nearby:

If they are opposite each other

Attention! If not a single cube with a white color stands correctly (and such a situation is not excluded), that is, they are not on the upper side, then do not be alarmed. You just need to do any of the above described algorithms. After that, the white cubes will move to the right place. As soon as this happens, depending on the situation obtained, repeat one of the algorithms described above.

Aligning Edges

Once the cross is assembled, it is necessary to correctly match each edge with the central cube of each individual side in color, that is, with the core. This should be done consistently, not paying attention to other elements, including corners. Even if now they are standing correctly, then do not be afraid that after this stage they will not fall into place.

To start:

1. Take the cube with the cross facing up and rotate this layer until at least two edges match the color of the other two sides, or rather their cores.
2. Depending on which of the following situations you can drive the edges into, use the algorithms described below.

If the side edges are next to each other:

It is also possible that the side edges will be located opposite to each other.

The final stage

After the described actions are done, and the ribs are in place, the only thing left is to return the corners to their places. To do this, depending on each specific situation, you can use completely different methods and formulas.

We will use a universal algorithm that allows you to swap corners depending on the selected position. In this case, the remaining elements of the cube will remain untouched.

If you did everything exactly according to our instructions, then congratulations! You just solved the Rubik's Cube! You can also use the algorithms described above to come up with your own universal formulas that will help you quickly move the cube elements from one position to another or assemble a cross.

Hi all!

Today our article is dedicated to all puzzle lovers. Solving problems, crossword puzzles, puzzles, riddles, etc. has always attracted people from young to old. And this is not only a fun pastime, but also a benefit for the mind, the development of logical thinking.

Puzzles can be either drawn in a publication or made in the form of objects, often toys. One of these is the famous Rubik's Cube in the 20th century.

Surely there are still fans of this puzzle. Or maybe someone who, after reading this article, wants to get acquainted with this old puzzle toy.

The Rubik's Cube (sometimes erroneously called the Rubik's Cube; originally known as the "magic cube", Hung. bűvös kocka) is a mechanical puzzle invented in 1974 (and patented in 1975) by the Hungarian sculptor and architecture teacher Erno Rubik. From Wikipedia.

In the mid-70s of the last century, the Hungarian teacher Erne Rubik, in order to somehow help his students learn some mathematical features and understand three-dimensional objects more clearly, made several wooden cubes and painted them in six colors.

Then it turned out that putting together a whole cube with sides of the same color is a rather difficult task. Erne Rubik fought for a month until he reached the result. And so, on January 30, 1975, he received a patent for his invention called the Magic Cube.

However, this name has survived only in German, Portuguese, Chinese and, of course, Hungarian. In all other countries, including ours, it is called the Rubik's Cube.

At one time, this puzzle was a bestseller. It was sold all over the world in the 80-90s. only, more than 350 million pieces

What is a Rubik's Cube

What is this puzzle? Outwardly, it is a plastic cube. Now it comes in various sizes, and 4x4x4 is considered popular. Initially, it was made in the 3x3x3 format. This cube (3x3x3) looks like 26 small cubes with 54 colored sides, which make up one big cube.

The faces of a cube rotate around its three internal axes. By turning the faces, the colored squares are reordered by the set of the most various ways. The task is to collect the colors of all faces equally.

There are a lot of different combinations. For example, a 3x3x3 die has the following number of combinations:

(8! × 38−1) × (12! × 212−1)/2 = 43,252,003,274,489,856,000.

As soon as this puzzle gained popularity, mathematicians all over the world, and not only, set out to find the number of combinations that would be the smallest when assembling it.

In 2010, several mathematicians from around the world proved that each configuration of this puzzle can be solved in no more than 20 moves. Any turn of a face counts as a move.

Fans of the cube did not just collect it, but began to arrange competitions in the speed of collecting puzzles. Such people became known as speedcubers. The result is not counted for a single assembly, but as an average of five attempts.

By the way, along with popularity, as it happens, opponents appeared who proved (even by examples) that the assembly of the cube, especially the speed one, entails dislocations of the hands.

But be that as it may, the cube not only did not turn away from itself, but attracted more and more more people. And the competitions were held both in a separate city, and in the country, and international. So, for example, a participant from Russia won at the European Championship in 2012. His average assembly time was 8.89 seconds.

The cube became so popular that other modifications of its shape began to appear. For example, a snake, a pyramid, various tetrahedra, etc.

How to solve a 3x3 cube, a diagram with pictures for beginners

So. Let's proceed to a simple version of assembling a 3x3x3 cube. It consists of seven stages. But first, about some concepts and notations that are found on the diagrams.

F, T, R, L, V, N- designations of the sides of the cube: front, rear, right, left, top, bottom. In this case, which of the sides is the facade, rear, etc. depends on you and on the scheme on which these symbols are applied.

The designations F', T', P', L', B', N' indicate the rotation of the faces by 90 ° counterclockwise.

Designations F 2, P 2, etc. speak of a double turn of the face: F 2 \u003d FF, which means to rotate the facade face twice.

The designation C is the rotation of the middle layer. At the same time: C P - from the side of the right side, C N - from the bottom side, S'L - from the left side, counterclockwise, etc.

For example, such a record (F 'P ') N 2 (PF) means that you must first rotate the facade face counterclockwise by 90 °, then the right face in the same way. Next, rotate the bottom face twice - this is 180 °. Then rotate the right face 90° clockwise, and rotate the front face 90° clockwise as well.

On the diagrams, this is indicated as follows:

So, let's start the assembly steps.

At the first stage, it will be necessary to assemble the cross of the first layer.

We lower the required cube down by turning the corresponding side face (P, T, L) and bring it to the front face by turning H, H 'or H 2. We finish everything with a reverse rotation of the same side face

On the diagram it looks like this:

At the second stage, we arrange the corner cubes of the first layer

Here we need to find the necessary corner cube, which has the colors of the faces F, V, L. Using the same method for the first stage, we display it in the left corner of the selected facade face.

In the diagram, dots show the place where you need to put the desired cube. For the remaining three corner cubes, repeat the same operation.

As a result, we get the following figure:

At the third stage, we will collect the second layer.

We find the desired cube and initially bring it down to the front face. If it is located at the bottom, then we do this by rotating the bottom face to match the color of the facade.

If it is located in the middle belt, then we lower it down using the formula a) or b). Next, combine the color with the color of the front face and do a) or b) again. As a result, we will have already collected two layers.

Let's move on to the fourth stage. Here we will assemble the third layer and the cross.

What needs to be done here. We move the side cubes of one face, which do not violate the already assembled order in the layers. Next, select another face and repeat the process.

Thus, we will put all four cubes in place. As a result, everything is in its place, but two, or even all four, may be oriented incorrectly.

First of all, you need to see which cubes sitting in their places are incorrectly oriented. If there is none or one, then we rotate the upper face so that the cubes on adjacent faces fall into place.

Here we apply such turns fv + pv, pv + tv, tv + lv, lv + fv. Next, we orient the cube as in the figure and already apply the formula written there.

We pass to the fifth stage. Here we unfold the side cubes of the third layer.

The cube that we will unfold should be located on the right side. It is marked with arrows in the figure. Dots in the same place mark all possible cases when the cubes can be oriented incorrectly (Figures a, b and c).

Figure a). Here it will be necessary to make a rotation B 'to bring the second cube to the right side. Next, finish with a turn B, which will return the top face to its original position.

Figure b). Here we do as in case a), only we turn B 2 and finish B 2 in the same way

Figure c). turn B is performed three times after turning each cube, after which we also finish with turn B.

We proceed to the sixth stage, we arrange the corner cubes of the third layer.

It should be easy here. We set the corners of the last face according to the following scheme:

First, a straight turn, with which we rearrange the three corner cubes clockwise. Then reverse, with which we rearrange three cubes already counterclockwise.

And finally, the last stage, during which we orient the corner cubes.

At this stage, the sequence of turns PF'P'F is repeated many times.

The figure below also shows four cases where the cubes can be incorrectly oriented. They are marked with dots.

Figure a) first make a turn B and finish with a turn B’,

Figure b) here we start with B 2, and end with it.

Figure c) turn B must be performed after we turn each cube correctly, and then do turn B2,

Figure d) we first make turn B, which is also performed after we correctly orient each cube. We also end with a turn B.

As a result, everything is collected

Assembly diagram for children

This scheme is also divided into several stages.

1. Assembly begins with a cross on the top side. It's almost easy to assemble. Moreover, you can ignore the location of the colors of the other sides of the cube, but only for now.

It is usually advised to start the assembly with yellow color. But you can choose any.

1. We continue to collect the cross. Here it is necessary to take into account that all the upper elements of the mating sides must have the same color as the central elements located on the same faces. If somewhere something did not match, we try to follow this algorithm:

A. if two adjacent sides did not match in color: P, B, P ', B, P, B 2, P ', B

B. if opposite sides differ: F 2, Z 2, N 2, F 2, Z 2

1. At this stage, we arrange the corner cubes. Thus, we will collect completely one side. Let's look at these corner cubes and see that the cubes of the color that we have chosen as the basis, in particular yellow, are in three versions: from above, to the left or to the right. For each, we use the appropriate combination:

For what is on top - P, B 2, P ', B ', P, B, P '

For what is on the left - F ', B ', F

For what is on the right - P, V, P '

The result is one fully assembled side, and the top layers of adjacent sides and their center are the same color.

1. Now we have to collect the second layer. To do this, turn the assembled side up. Next, twist the bottom edge so that the color of the side element matches the color of the side, forming the letter "T". In order to move the side cube from the bottom layer to the middle one, and at the same time its two colors must match the colors of the neighboring sides, you must do the following:

A. Turn the cube to the left - N, L, N ', L ', N ', F ', N, F

B. Move the cube to the right - N', P', N, P, N, F, N', F'

1. We collect the third layer. Let's start by turning the cube upside down. If the chosen color was yellow, now on top we need to make it white. Now we collect white cubes according to these formulas:

A. White cube in the center + two opposite side ones - F, P, V, P ', V ', F ',

B. White cube in the center + two adjacent side ones - F, V, P, V ', P ', F

C. Only one white die in the center - use any combination, either A or B

1. We collect the remaining layer completely. Below is an assembly diagram for two options. If none of the above work for you, use any.

A. The colors match when rearranged counterclockwise - P, V, P ', V, P, V 2, P ',

B. The colors match when rearranged clockwise - P, V 2, P ', V ', P, V ', P ',

1. At this stage, we arrange the corner cubes. This will be a little more difficult to do. However, practice and you'll be fine.

A. The side cube with the color of the top face is on the front side -

P’, F’, L, F, P, F’, L’, F

B. The side cube with the color of the top face is on the side -

F’, L, F, P’, F’, L’, F, P

1. Last thing. Here it is necessary to correctly expand the corners. Again, we need two options:

A. Clockwise - P 2, B 2 ', P, F, P ', V 2 ', P, F ', P

B. Counterclockwise - P ', F, P ', V 2 ', P, F ', P ', V 2 ', P 2

If you need to change corner cubes crosswise or corners that are opposite, you can use either of these two options.

As a result, the puzzle will be completely assembled.

Video master class on the cube

And finally a short video

Surely everyone has known since childhood the famous puzzle, named after its creator - Erno Rubik. Pretty quickly, she gained popularity and reached the most remote corners of the planet.

Without proper skill, it will not work to put together a puzzle, even after doing a hundred manipulations, but relatively recently, specialists from Inc. learned how to solve a rubik's cube in 20 moves. They managed to achieve this phenomenal result with the help of a computer, which was given the task of analyzing all possible combinations.

Where did the Rubik's Cube come from?

Back in 1974, the Hungarian architect and teacher at the Academy of Applied Arts Erno Rubik thought about the best way to learn

He wanted a new invention to help students explore the world, and one day he had a sensational idea - to create a puzzle. The task, it would seem, is elementary - to rotate the rows of the cube until each of the sides becomes the same color. But the scheme for assembling a Rubik's Cube is not so simple and can take even several hours in time, without giving a result. The students appreciated and got carried away with the new toy. At that moment, the creator did not even suspect that after many years scientists would puzzle over solving the puzzle until they figured out how to solve a Rubik's cube in 20 moves.

How did the worldwide popularity come

At first, the original toy was not popular with investors. It was believed that its production would not be profitable, since the assembly of the Rubik's cube could be of interest only to intellectuals. Nevertheless, one small company decided to invest in this unusual project, and the puzzle began to conquer Budapest.

A few years later, Tibor Lakzi, an intermediary of one of the German firms, arrived in the city and became interested in the original puzzle, which at that time was very popular among the townspeople. Realizing that the distribution of an amazing invention around the world could bring huge profits, he decided to promote the Rubik's Cube. For novice businessmen Lakzi and Rubik, the main difficulty was the search for investors. But thanks to Tibor's economic education and his commercial flair, the owner of Seven Towns Ltd, Tom Kremer, was soon involved in the project. He undertook large-scale production and distribution, which helped the cube become popular all over the world.

"God's Algorithm"

Since 1982, competitions have been regularly held in many countries, in which the main task of the participants is the speed assembly of the Rubik's Cube. In order to solve the puzzle as quickly as possible, it is not enough just to have good dexterity and ingenuity. A person should know the optimal scheme for assembling the Rubik's cube, which allows you to expend as little effort as possible. The minimum number of steps required to solve the problem is the "God's Algorithm".

Many learned minds and simple amateurs have tried to find a solution. At one time it was believed that the minimum number of steps from any position was 18, but later this theory was refuted. Many years have been spent searching for the optimal sequence, and only in 2010, scientists managed to find out how to solve a Rubik's Cube in 20 moves, regardless of the position of the puzzle before the assembly began. This is currently an absolute record.

Who is faster - a car or a person?

On the this moment Colin Burns, an American schoolboy, is the fastest person ever to solve a puzzle in less than 5.5 seconds. And the robot, assembled by British engineers from parts of the EV3 designer, coped with this task in 3.253 seconds. The advantage of the mechanism is not only that the work of all its parts is more coordinated than the actions of a person. Scientists gave him as many as 4 hands, which allow you to perform all operations 2 times faster.

How to learn to collect it

There is more than one standard Rubik's cube scheme that allows you to learn how to solve this original puzzle in a short time. Various systems assemblies allow you to approach the issue in different ways. Which one to choose is up to you. Of course, it is unlikely that without the computer power of Google you will learn how to solve a Rubik's cube in 20 moves, but you will learn how to find simple solutions in a short time. The main thing is that you have enough perseverance. No technique will help solve the puzzle without problems if you are not ready to spend your precious time learning.

But you should not give all your time to this toy. Doctors have noted an increase in the number of patients in psychiatric clinics after the appearance of the Rubik's Cube. And traumatologists began to regularly encounter symptoms, later called "Rubik's syndrome." It appears as sharp

Assembly diagram

There are several schemes that allow beginners to quickly learn how to add a Rubik's cube. Attached to this article is one of them:

1. First you need to assemble a cross, the ends of which are continued on adjacent faces. There is no universal technique - everything comes with practice.
2. Next, you need to complete the entire side on which the cross was assembled, and assemble the belt from the parts around it. It is important to ensure that each belt is the same color.
3. Now you need to collect the second belt and go to the opposite side of the cube.
4. We collect the cross on this side in the same way as at the very beginning.
5. We complete the whole side.
6. Now we put the corners of the cube in order - we make the colors on them match the colors of the sides to which they are turned.
7. It remains only to correctly rotate the parts that have only 2 sides. The cube is assembled.

Now you can learn how to solve one of the most popular puzzles in the world. The universal Rubik's cube scheme will help you with this.