Rubik s Cube Top Ridge Homing Formula, Rubik s Cube Top Corner Block Homing Formula

It's just a counterclockwise mirror formula, l'ul'u'l'u'l'ulul2 is RU counterclockwise'rururu'r'u'r2。

Analysis: R: Turn right.

m: Separate turn in the middle.

L: Turn left.

u: Top-level turn.

d: Bottom turn.

F: Turn to your side.

Add ' after the letter to represent counterclockwise turning.

The lowercase letter stands for double-turned.

Add 2 after the letter to represent two turns of 180 degrees (e.g., u2=u+u) Note: The Rubik's Cube turns twice counterclockwise is the same as turning twice clockwise.

Two formulas:

1、t4：r-u-r+u-r-(u-)2r+

2、t5: f+u+f-u+f+(u+)2f-

Where symbolic meaning:

1. +: rotate 90°; or: reversal 90°; 2: Rotate 180°; 2 after parentheses: Repeat the content in parentheses.

2. l=left; r=right; b=back; f=front; u=above; d=Bottom.

Use t4 or t5 when there are three variegated corner blocks on the top layer. When the side corner blocks of the third layer (the same color as the top layer) are arranged counterclockwise, use T4, clockwise.

Use T5 when arranging, and ensure that the corner block in the upper left corner of the top layer is the correct color block before use.

Third-order Rubik's Cube Reduction Method:

A third-order Rubik's cube, "from top to bottom" can be understood as "top", "middle", "bottom", the so-called "layer first" is layer by layer reduction. The third-order Rubik's Cube "layer first method" is restored, which is divided into the following six stages:

One: For the top layer of the cross, restore the top layer of the edge.

2. Restore the top corner block.

Three: Restore the middle layer of the edge.

Four: to the bottom of the cross, restore the bottom edge.

Five: Flip the bottom corner block to align the bottom color. (For ease of understanding, the Rubik's Cube is flipped upside down here.) )

Six: Adjust the position of the bottom corner block, and the restoration is completed.

The homing formula for the top corner block is (r u'r)(u r u r)(u'r'u'r2)。

Rubik's Cube Introduction:

The Rubik's Cube, also known as the Rubik Cube, was first invented in 1974 by Professor Ernor Rubick of the Budapest School of Architecture in Hungary. The Rubik's Cube has a variety of gameplay methods such as racing, blind twisting, and single twisting, and it is one of the most popular intellectual games.

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 and is made of elastic 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.

The Rubik's Cube, together with Huarong Dao and the single aristocracy of France (independent diamond chess), are known as the three incredible minds of the intellectual game sideshow world. The Rubik's Cube six-sided sticker is usually composed of six colors: red, yellow, blue, green, white, and orange. The method of stickers varies from time to time and place, but basically the front red, the back orange, the top yellow, the bottom white, the left blue, and the right green.

Without these limitations, there are a total of 30 ways to apply Rubik's Cube stickers. Because due to the symmetry of the Rubik's cube, we might as well designate blue as the top surface when sticking it. There are 5 ways to paste it on the opposite side, and the remaining 4 faces form a ring.

There are 3 2 kinds of sticking in the same case after the four colors of this ring remove the spin friendly oak.

This is because, for this ring, we can also specify one of the 4 colors as the front, there are 3 ways to paste it opposite, and the remaining two sides correspond to 2 ways to paste, so there are 5 3 2 = 30 ways to paste the Rubik's Cube sticker.

In fact, there is not only one color scheme of the Rubik's Cube, and what is popular today is not the original version, the original Rubik's Cube color scheme is the current Japanese scheme, and the current color scheme is to arrange a pair of similar colors on opposite sides, while Japan maintains the original color scheme, in fact, there are many other versions of the color scheme.

Text: Bottom, Right, Top, Right, Bottom, Flat, Top. (The top and bottom are the operations of the right-right layer, and the left-right and flat refer to the operations of the upper layer).

Letters: r u, 2 r, u, r u, r or r,, u2, r u, ru, r

The total number of changes in the third-order Rubik's Cube is:

The formula for the total change of the third-order Rubik's cube is obtained as follows:

The Rubik's Cube, known as the Magic Cube in Taiwan Province of China and the Twist Dice in Hong Kong SAR, China, is a mechanical educational toy invented by Hungarian architecture professor and sculptor Rubik Airne in 1974, originally called Magic Cube, which was sold by Ideal Toys in 1980 and changed its name to Rubik's cube。

The Rubik's Cube was most popular in the 1980s and has not faded ever since. As of January 2009, more than 350 million Rubik's cubes have been sold worldwide.

In March 1970, Larry Nichols invented the "puzzle with pieces rotatable in groups" and applied for a Canadian patent, which is a 2 2 2 Rubik's cube, but each block is attracted to each other by magnets. It was patented in the United States in 1972, two years before Professor Rubik's Rubik's Cube.

Rubik's Cube The last step to restore the Rubik's Cube.

If the three edges are reversed, put them on the top layer, and the remaining correct edge faces you, screwing ru2r'u'ru'r'If it's not right, just screw it again. If the two edges are interchanged, one of the edges that needs to be swapped is adjusted by rotating the top layer, and the remaining three can be restored using the method just now. Hope it will help you.

rur'uruur'

Since there is no Rubik's Cube in hand. Out of thin air. I don't know if it's right. You try.

When doing it, because the left and right sides are swapped with the back three edges, it is necessary to let one that has been returned to the position face itself, and the other three are chaotic.

Only the top floor: ru'l'ur'u'LU image formula: l'uru'l'uru'That's all there is to it (prism formula).

Four apex angle homing formula: (r u' r）（u r u r）（u' r' u' r2）。

Tips for playing the Rubik's Cube:

No matter how you turn it, the middle block of each face [Figure: Face Center Block] is fixed. So the color of the center block of each face determines the color of that face.

No matter how you turn it, the block with three colors at the top corner will always be at a certain top corner; A two-color block in the middle of a ridge will always be in the middle of a particular edge.

The so-called formula is to use a certain routine to tell you how to turn each face. The letters U, D, L, R, F, and B are used to represent the six sides of the Rubik's Cube, up, down, left, right, front and back, respectively.

If it's not this method:

Take a look to see if the corner block is in its own position (as long as it is in place (in place: the position is correct, but the color of either side and the color of the center block of the face are not the same) or homing), if there is none, just do Formula 1, and it will become after you are done; If there is one, put him in the upper right front position and do Equation One. Know that all four corner blocks are in place or in place.

Go to the next step.

Formula 1: u r u' l' u r' u'l I put the corner block which is only in place and does not return to the position in front of the left and do it"z2", do the formula two or two times to see if the corner block is in place, if not, do it twice. After homing, turn d a few times, put the corner block that has not been homeed in the lower right front position, and then do the formula two or two times to see if the corner block has been homed, if not, do it twice.

until all the corner blocks are homebound. After returning to the position, turn D a few more times, and you can recover!

1. The top corner face position (the step in which the top surface color of the four top corners of the Rubik's Cube is adjusted to the top surface) Formula 1: r' u2 r u r' u r；Equation 2: u' r u'u' r' u' r u' r'

2. Apex corner homing (the other two colors of the four vertex corners of the face position and the color of the center block of the corresponding face are the same color) formula: r b' r f2 r' b r f2 r2

3. The vertex prismatic homing (the color of the other side of the four vertex ridges that have been in place and the color of the center block of the other four faces where they are located) formula (r u' r）（u r u r）（u' r' u' r2）。

The letters represent the six sides of the Rubik's cube, right: r; Left: L; On:

u；Bottom: d; Front: f; After:

b。90 degrees clockwise is represented by the letter [ ]; 90 degrees counterclockwise with [.]'] letters represent; 180 degrees clockwise is represented by the letter [2]; 180 degrees counterclockwise with ['2] Letters represent.

The letters represent the six sides of the Rubik's cube: right, r, left, l, up, u, down, d, front, f, back, b, clockwise, 90 degrees, represented by the letters [ ].

90 degrees counterclockwise with [.]'] letters represent;

Clockwise 180 degrees with the letter [ 2] represents Step 5: Top Corner Position (the step in which the top color of the four top corners of the Rubik's Cube is adjusted to the top surface):

Equation 5-1:r' u2 r u r'u r formula 5-2: u' r u'u' r' u' r u' r'

Step 6: Apex corner homing (the other two sides of the four vertex corners of the face position are the same color as the center block of the corresponding face):

Equation 6: r b' r f2 r'b r f2 r2 step 7: apex homing (the color of the other side of the four vertex ridges that have been in the same color as the color of the center block of the other four faces):

Equation 7: (r u' r）（u r u r）（u' r' u' r2）

This method is slower. I suggest a different one.

Corner triangle block position conversion:

rb'rf2r'brf2r2

The third-order Rubik's Cube introductory restoration tutorial, step 7: the top layer of yellow edges is in place.

There are three situations in the third-order Rubik's cube, and you need to follow the following formulas.

In the first case, (u f u f), (u r u r) in the second case, (u r u r), u f u f) is already in the correct position, and only needs to be flipped in place once, using the formula once, 3-1 + u2 + 3-1 again, or once again with the formula 3-2 + u2 + again 3-2