How can the gameplay of the Rubik s Cube be completely restored?

You can learn this by yourself!

Shangshun means that the top layer is rotated 90 degrees clockwise, and so on... There's really nothing you can do! But I've just learned it through this Youku**.,I'm still willing to tell you the first two steps I think you can figure it out.,I wrote out the formula in words at the back.,I hope it helps you.。

The first two steps are to align the first layer with a T-shape.

2) Right: up, right, up, right, up

Step 4 Point, Line, L, Ten.

Step 5 1) 3 are not there.

Right backwards: right reverse, upward reverse, right straight, upward reverse, right reverse, upper reverse reverse, right straight. Left backwards: left-straight, up-turn, left-inverse, up-straight, left-straight, left-straight, left-straight, left-inverse. 2) 2 are not there, 4 are not there.

2 after 4 left: right reverse, upward reverse, right transverse, upward reverse, right reverse, right reverse, right transverse.

Step 6 1) There are two.

Take the backward facing as the reference surface.

Left Shun, Forward and Negative, Left Shun, Post Shun, Left Reverse, Forward Shun, Left Shun, Post Shun, Left Shun.

2) Can't find it.

Repeat the above to form 1).

Step 7 Take the good side facing you as a reference surface.

In the counterclockwise state, use the inverse algorithm, then turn the Rubik's Cube 180 degrees, and then use the upward algorithm to be OK;

In the clockwise state, use the forward algorithm, then turn the Rubik's cube 180 degrees, and then use the reverse algorithm to be OK;

In other cases, the above state is formed by doing it once with the above algorithm.

Want to learn the Rubik's Cube? In order to avoid detours, please see the tutorial I summarized, designed for beginners, to give you the easiest way.

f- turn clockwise in front and b- turn clockwise in rear.

l - left side of the big clockwise turn r - right side clockwise.

U - Clockwise above D- Clockwise below (if added'for counterclockwise rotation).

1.Start by turning a cross on one side of the same color as the center block on the side (it's easy to try it yourself).

2.Place the cross on top, find the corner block from the bottom layer to be homed, make it below the position you want to homing, press R'd'Rotate the rd 1, 3 or 5 times until the corners are in place, and then use the same method to return the other corners to their positions.

3.Inverting the Rubik's Cube, the face has been put together below, the top layer is rotated to one side is an inverted T, and the color of the top layer is the color of the small T on the left or right side upside down. The shed is like the color of the small T upside down on the left, press U'f'ufuru'r'Turn the Rubik's Cube; If it is the color of the small T upside down on the right, press URU'r'u'f'UF rotates the Rubik's Cube so that the piece just now falls between the two small T's, and then uses the same method to return the other corner pieces to their positions.

4.Press frur'u'f'Turning the Rubik's Cube 1 or 2 times will cause the top surface to appear as a cross.

5.Turn the top layer so that the color of the piece in the middle of the front upper layer is the same as the color of the lower two layers, press rur'uruur'Turn the cube 1 or 2 times to shape the surroundings into a front shape.

6.To find the position pair (just the position pair) of the corner block hand and vertically, press uru'l'ur'u'l Turn the Rubik's Cube 1 or 2 times so that the positions of the four corner blocks are correct.

7.Is a corner block in the wrong position in the upper right front corner, press R'd'rd rotate the Rubik's Cube 2 or 4 times, the color of the upper right front corner is also correct, turn the top layer, it is another piece to the position of the corner block that has just been restored, and repeat the steps just now. Repeat the steps above, and the imitation will be completed.

The Rubik's Cube is composed of six central blocks, twelve edge blocks, eight corner blocks, the corresponding edge blocks have two different colors on two sides, and the corner blocks have three different colors on the sides, wherein the edge blocks can only be transposed with the edge blocks, the corner blocks can only be transposed with the corner blocks, and the center blocks cannot be moved. The standard color of the international Rubik's Cube is: yellow on the top and white on the bottom, blue on the front and green on the back, orange on the left and red on the right, and the specific steps are as follows:

1. Choose white as the bottom surface.

2. Turn the four white edges to the opposite side of the white, which is the yellow side.

3. Rotate the bottom two layers or the top layer so that the color of the side of the edge of the top layer is the same as the color of the surface of the center block.

4. Rotate the surface 180 degrees counterclockwise or clockwise, so that the white edge turns to the same side of the white center block.

Notes:

1. It is called the magic square in Taiwan, and it is called the twisted dice in Hong Kong.

2. The central block is connected with the central shaft, but it can rotate freely along the direction of the shaft.

3. The inner side of the cuboid is not flat, and there is a cylinder in the center connected to the central axis.

4. From the side, there will be an arc-shaped groove on the inner side of the center block, and after combination, the groove on the center block and the side block can form a circle.

The reduction method of the third-order Rubik's cube.

When it comes to the Rubik's Cube, many people think that it is an intellectual game played by children and school students. In fact, it is a public lifting base letter educational toys, people of any age can play, especially the elderly, play a Rubik's Cube, to improve memory, enhance attention, exercise hand and brain flexibility, coordination, are good.

The Rubik's Cube is a mechanical educational toy invented in 1974 by architecture professor Rubic Erno. It was loved by the public in the 80s. According to statistics, 20% of the world's population was playing the Rubik's Cube at that time, and this popularity is surprising.

Nowadays, there are many types of Rubik's cubes, from entry-level Rubik's cubes to advanced professional Rubik's cubes. The Rubik's Cube introduced here today refers to the most basic and common standard third-order Rubik's Cube.

Playing the Rubik's Cube is to turn 9 stickers on 6 sides into the same color, which tests the ability to observe, remember, and practice.

The method of recording the rotation of the Rubik's Cube, known as the Simmaster marker, has now become a universal standard, popularly known as the "Rubik's Cube Formula Symbol".

The reset mark consists of two parts: "each layer code" and "rotation direction".

Each layer is referred to by an initial. r(right), l (left), u(up), d(down), f(front), and b(back) refer to the right, left, top (top), bottom (bottom), front (front), and back (back) layers, respectively.

Rotation direction marking: rotate 90° clockwise, and write the code of each layer directly; Rotate 90° counterclockwise, and suffix [in the code of each layer'] or [i]; In each layer code suffix or, the default clockwise rotation is 180°.

There are many ways to reduce the third-order Rubik's Cube, among which the "layer-first method" is the most suitable method for beginners to master.

A third-order Rubik's Cube, "from top to bottom" can be understood as "top", "middle", and "bottom".

In the process of restoration, due to the different placements, personal habits, etc., the formulas used according to the markers are different.

The following is a reduction method that I have compiled based on the teaching of multiple teachers and according to my own preferences.

Step 1: Create a white cross on the underside.

1. Establish a white cross on the bottom surface.

Step 2: Return the underside white to its position.

Step 3: Middle layer homing.

Step 4: Yellow cross on the top layer.

Step 5: Restore the top yellow surface.

Step 6: The top corner block is in place.

Step 7: The top edge is homebound.

To twist the Rubik's Cube, there must be a suitable Rubik's Cube. If you buy, it is recommended to carefully choose the one that is particularly smooth.

The steps to restore the Rubik's Cube are as follows:

1. Find any color on one side and restore one side directly.

2. Take the restored complete surface as the base, restore the trapezoidal shape formed by the bottom layer and the center block on the four sides, and keep the complete surface of the first step intact.

3. Take the complete surface completed in the first step as the bottom surface, and the face facing yourself is the "front", and the two layers of the lower socks on the four sides are restored to completeness. (The formula is: subtract from the left square, subtract from the left, add up, add left, add up, add up, add up, subtract from the front; The middle right square is added, right, up, right, up, up, and front, and the seepage is added, and the front is added.

>4. The top layer of the cross is restored, and the formula is: the front balance is blindly added, the right is added, the right is added, the right is subtracted, the upper is subtracted, and the front is subtracted.

5. Find the only side of the four sides that can be opposed, and take this side as the front, and the others cannot be faced. Right plus, plus up, right minus, plus up, right plus, plus 180°, right minus.

6. The return of the squares on both sides of the top layer of the four sides refers to the return of the squares at the upper two corners of the four sides, and the homing does not mean that the colors should be matched, as long as the color of this piece corresponds to the color of the three sides.

7. Use the formula: right subtraction, bottom subtraction, right addition, bottom addition, right subtraction, left subtraction, right addition, and bottom addition can be completed. (Use this mantra repeatedly, and for each pair of corners, you will use "add" once and then complete the next corner.) ）

Here's how to restore the Rubik's Cube:Tools Ingredients: Use tools: third-order Rubik's Cube, Rubik's Cube Restoration Tutorial.

1. We take out a Rubik's cube and restore it to one side first, there is no formula when restoring one side, and we need to figure it out slowly.

Rubik's Cube restoration refers to the process of restoring the shuffled Rubik's Cube to its original appearance, which can be completed in 7 steps. There are many ways to restore the Rubik's Cube, such as "layer first", "corner first", "edge first", etc., so how to restore the Rubik's Cube?

There are many special symbols in the Rubik's Cube, +: turn 90°; or: reversal 90°; 2：

Rotate 180°; 2 after parentheses: Repeat the content in parentheses. l=left; r=right; b=back; f=front; u=above; d = bottom, only by remembering these symbols, can you use the formula to restore the Rubik's Cube.

Restore the idea

The first step: take a face to draw a cross, and ensure that the four side center color blocks corresponding to the cross are consistent with the cross, align the four corners, invert to make it an inverted T-shape, the second step: is the same color corner block homecoming.

Step 3: Draw a cross on the item layer, using a formula: t3: right top front up + front + right + t3: r-u-f-u+f+r+

Step 4: Return the top edge to the edge, after making a corner, turn the top layer, turn the other corner to the position using the formula, and then r' d' r d 。Don't flip the Rubik's Cube so that the other corner gets to where the formula is used.

Step 5: To align the top edge, first adjust it to the center color, it may not be successful at one time, so you may also need to use the formula to change the position, the formula for changing the position is very easy, this formula is to swap the left and front edges with each other rur'u r u' u' r'It's good, your cross is already centered on all sides, and the next thing is to change the corner.

Step 6: After the corners of the top layer are in place, and the four corners of the top layer are the same color, you can use the formula to change the top layer to the same color. ri is the right side of the counterclockwise turn 90 degrees, the same way, after two or four times, you can change an angle for the better, and then turn the adjacent corner that has not changed color to the front, according to this formula, and so on.

Step 7: Make the top layer of the corresponding corner block home, first use (ri di r d)*2 or 4 to return a top layer corner block, and then at this time the bottom layer is chaotic, it doesn't matter, rotate the top layer, the Rubik's cube as a whole can not move, only rotate the top layer, turn the other corner block that is not in place to the position where the formula can be used, and then again (ri di r d)*2 or 4, so that after the two corner blocks are returned, the bottom layer will also be automatically restored.

How to play the Rubik's Cube to restore it is as follows:

1. Find a random color first, and directly restore it to a complete surface.

2. Four-sided bottom layer and center block restoration: take the complete surface of the first step of restoration as the base, restore the trapezoidal shape formed by the bottom layer and the center block of the four sides (as shown in the figure below) while the second step is completed, the side of the first step is still intact, there is no formula for these two steps, so if you want to complete the Rubik's Cube restoration, the above two steps are the most basic, and this needs to be explored and practiced by yourself.

3. The "plus" and "subtraction" in the Rubik's Cube formula refer to "clockwise" and "counterclockwise" respectively: the complete surface completed in the first step has been used as the bottom surface, and the face facing itself is the "front", and the two layers under the four sides are complete, which refers to the restoration of the lower two layers of the four sides (as shown in the figure below), and the formula is: the moving block is the middle block of the upper layer on the side, and it is judged according to the color of the side whether it moves to the left side of the middle layer or moves to the right side:

Middle left square subtract up, subtract left, add up, add left, add up, add up, add up, subtract up, subtract before; The center and right squares are added up, right, subtracted, subtracted, subtracted, subtracted, subtracted, added, added.

4. Restore the top layer of the cross: After completing the third step, the next step is to restore the top layer of the cross (as shown in the figure below), the specific formula is: front plus, right plus, top plus, right subtraction, top subtraction, front subtraction.

5. The square block on the top layer of the four sides (cross homing): the square in the top layer of the four sides, that is to say, 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), the formula is: first of all, the condition is to find the only side of the four sides of the front can be opposed, and this side is the "front", and the others are not faced.

If there are two sides that can be matched, use the following formula once, and you can achieve the conditions for using the formula: right plus, plus up, right subtract, add up, add right, add 180 degrees, right subtract.

6. The alignment of the squares on both sides of the top layer of the four sides (the corners of the upper layer are aligned): the squares on the top two sides of the four sides are aligned, which refers to the alignment of the squares at the upper corners of the four sides, and the homing does not mean that the color should be aligned, as long as the color of this piece corresponds to the color of the three sides, as shown in the figure below. The mantra is:

First of all, the condition is to find a counterpoint angle and put it in the upper right of the top layer of the "front" surface, if you can't find the counterpoint, you can use a formula, and you can see the counterpoint angle by dismantling the remaining suspicion: add, right, subtract, subtract, add, right, subtract, subtract, and add.

7. The completion of the top layer refers to the completion of the matching of the color of each side of the four corners of the top layer in the state of the four corners of the sixth step (as shown in the figure below), the formula is: right subtraction, bottom subtraction, right addition, bottom addition, right subtraction, left subtraction, right addition, bottom addition (repeatedly use this formula, each pair of upper corners, is to use a "plus" and then complete the next corner).