A simple formula for the fifth order Rubik s Cube on the edges

Fifth-order Rubik's Cube. Simple formula for the edges:

Alternate edges.

tr2 b2 tr' u2 tr' u2 b2 tr' b2 tr b2 tr' b2 tr2

Invert the edge. tr2 b2 u2 tl u2 tr' u2 tr u2 f2 tr f2 tl' b2 tr2

Flip the opposite two edges.

m1u' r u r' f r' f'R M1U is reversed to the third block on the opposite side.

tl' u2 tl' u2 f2 tl' f2 tr u2 tr' u2 tl2。

Presumably you've already got the center block The opposite edge is actually a fourth-order idea, which is the same as the fourth-order formula, but you have to ignore the middle layer, and the formula is MDRF'ur'fmd'

In fact, when we complete the restoration of 12 edges, we can also use the formula at all, and according to the experience of playing the Rubik's Cube, we can complete the restoration of 10 edges by relying on past experience, but in the process of completing the last two edges, in order to keep the completed 10 edges from being destroyed, the steps used in the processing are slightly more complicated, and the following is 4 such formulas. In fact, it is a little bit of a skill, many friends estimate that they do not look at the formula is also done in this way, here, we just provide a way of thinking, some of the skills, you can learn and use.

Alternate edges.

tr2 b2 tr' u2 tr' u2 b2 tr' b2 tr b2 tr' b2 tr2

Invert prism tr2 b2 u2 tl u2 tr' u2 tr u2 f2 tr f2 tl' b2 tr2

Flip the opposite two edges.

m1u' r u r' f r' f' r m1u

Swap the third piece on the opposite side.

tl' u2 tl' u2 f2 tl' f2 tr u2 tr' u2 tl2

If you don't understand, ask me again, I can send you a ** so I'm afraid it's not clear.

Yes, you can solve all the problems with a fourth-order flipping formula and the simplest three-edge permutation, but with more steps, you don't need to memorize.

I've seen a post on this in the forum of the Rubik's Cube station, it's very good, you can check it out.

The method of interchanging the last layer of the fourth-order Rubik's Cube is as follows:

1. First of all, keep a color that needs to be interchanged, facing your own unchanged position. The middle layer on the right is rotated 180° upwards. Counting from right to left, the second column is the middle layer.

2. The top layer rotates 180° to the left. The top layer turns from right to left, which is a tick.

3. The middle layer on the right is turned upwards by 180°.

4. Turn the top 1st and 2nd floors to the left 180° at the same time.

5. The middle layer on the right is turned up 180°.

6. Turn 180° to the left on the top 2nd floor. In this way, the two Ling Kuai before and after were successfully swapped.

The first type: the edge conversion.

Solution formula: mr2 u2 mr2 tu2 mr2 mu2 The second type: single-edge flipping.

Solution formula: MR2 B2 U2 ML U2 MR' u2 mr u2 f2 mr f2 ml' b2 mr2

Quick reference table of the most important formulas to be used in the fourth order:

That's the PLL formula, you can find it on the page below, the 20th formula, which is the penultimate formula. Parallel line column.

CFOP Gameplay:

After payment, Fo Southern Airlines intersection to see a good communication, there is insulating tape, living alone, reading and reciting, oh, the five people are not good, quickly hungry Gree mobile phone, why bother, lighter.

Fourth Order. Sorry to read that wrong... And so it is ...

Similar to the fourth-order merging edges, the last two of the fifth-order merging edges involve formulas, of course, you can also disassemble another edge according to the observation, so that the three edges can be observed and restored.

Answer: Hello We now assume that the Rubik's Cube is fixed, so relative to us, it is divided into: front (f), back (b), left (l), right (r), top (u), down (d) front = front back = back = left = left right = right up = top down = below, in which all the above are turned clockwise, that is, rotated at an angle of 90 degrees.

That is, it turns 90 degrees counterclockwise, if you add a 2, it means that you turn twice, that is, turn 180 degrees, in fact, after turning 180 degrees, whether you turn 180 clockwise or 180 degrees counterclockwise, the result is the same. So sometimes depending on the direction you are comfortable with, you can choose whether to turn 180 degrees forward or counterclockwise.

ur'u')（ru'r)(uru')(r'uru)(r2u')(r'u)

That's the formula, turn in the direction you ** take up.

Can you tell me how to dismantle it? I can't memorize the formula either.

Fifth-order Rubik's Cube. Simple formula for the edges:

Alternate edges.

tr2 b2 tr' u2 tr' u2 b2 tr' b2 tr b2 tr' b2 tr2。

Invert the edge. tr2 b2 u2 tl u2 tr' u2 tr u2 f2 tr f2 tl' b2 tr2。

Flip the opposite two edges.

m1u' r u r' f r' f' r m1u。Tan Brigade shouted.

Swap the third piece on the opposite side.

tl' u2 tl' u2 f2 tl' f2 tr u2 tr' u2 tl2。

The fifth-order Rubik's Cube (English: professor's cube or rubik's professor), a cube of 5 5 5.

Structure. Invented by Udo Krel.

The fifth-order Rubik's Cube has a total of 8 corner blocks, 36 side blocks (two types), and 54 center blocks (48 movable blocks and 6 fixed blocks). Due to the structure of the fifth-order Rubik's Cube and the third-order Rubik's Cube.

It's similar, so you can let the wilds apply some of their solutions to help with recovery.

The fifth-order Rubik's Cube is one of the official racing programs of the World Rubik's Cube Association (WCA). Single world record as of 2020.

is seconds, the average world record is seconds, and it is held by American Max Park. The single Chinese record is seconds, and the holder is Wang Xuming.

Pingzhen Sun Jun Chinese record for seconds, held by Wang Xuming.

The formula for the fourth-order Rubik's Cube is as follows:

There is no alignment of the two edges in unison (symmetry up and down), and the consistent side faces themselves. On the right 2 floors, on the top 2 floors, on the top floor, on the front floor; The right 1 layer is down, the top layer is left, and the front layer is reversed Abbreviation: upper right is straight, lower left is reversed.

180 degrees on the right 2 layers of the top surface, 180 degrees on the rear layer, and 180 degrees on the upper layer; The left two layers are close to me, the upper layer is 180 degrees, the right two layers are close to me, the upper layer is 180 degrees, the right two layers are far away, and the upper layer is 180 degrees. 180 degrees forward, the right two layers away from me, 180 degrees forward; The left two layers are far away from me, the back layer is 180 degrees, and the right two layers are restored. Acorn spikes.

One corner block is aligned, the four sides are also aligned, and there are two remaining edges with two blocks that are always misaligned. When the two blocks on the edge of the two sedan chairs are opposite each other, the following formula can be made, when the two blocks are not opposite, <>

To do it first: up right, left on left, right on right, right on right, so that it becomes a relative situation. 180 on the second right interlayer, 180 on the upper layer, 180 on the second right interlayer, 180 on the upper two layers, 180 on the second right interlayer, 180 on the upper two layers, 180 on the upper two layers.

When there are only two "2+1s" in the fifth-order Rubik's cube, 1 is on the left and 2 is on the right. Facing yourself, the only formula: on the right two layers, the upper layer is 180 degrees, a total of five times. In this way, you can make three "2+1", and then you can restore Liang Fanbu.

Opposite edge interchange: MR2 U2 MR2 U2 MU2 MR2 MU2

Unilateral flanging: MR2 B2 U2 ML U2 MR' u2 mr u2 f2 mr f2 ml' b2 mr2

When merging edges, the fourth-order Rubik's Cube should first make a layer of flipping formula UW of the different colors on the left and right sides of the position' （ r u r' f r' f'r) uw, combine the opposite edges together, and then do an in-situ flipping formula r u r' f r' f' r 。

The remaining step is to restore the fourth-order Rubik's cube, first restore the edges, and the formula used is uw2 ( mr2 u2 )2 mr2 uw2, and then use the three-edge formula of the third-order Rubik's cube to restore, rw u2 cr (rw u2)2 rw' u2、lw u2 rw' u2 rw u2 rw' u2、rw'When rotating, rotate in order, and turn the formula again if it is wrong.

Fourth-order Rubik's Cube. The fourth-order Rubik's Cube has a total of 8 corner blocks, 24 side blocks and 24 center blocks, and its composition is divided into two categories:

The center of the first type is a sphere, and each small piece around the perimeter is connected to the slide rail of the center ball, which slides in the direction of force when moving.

The second type is the fourth-order Rubik's cube with the axis as the core, which is very complex in composition, and has many additional parts in addition to the center ball and the surrounding blocks.

As a racing sport, the fourth-order Rubik's Cube is the second type of movement, which is fast and not easy to get stuck in high-speed rotation.

Let's talk about the representation of the formula letters of the basic actions of the fourth-order Rubik's cube

1.Up U Down D Left L

Right r anterior f posterior b; 2.Spiral **u without apostrophes is 90 degrees clockwise, u'The apostrophe is 90 degrees counterclockwise (it is the direction of the hour hand facing that face, so the direction of the left L and the right r arrow is opposite);

3.Middle layer: represented by m, mu is the upper middle layer;

4.Double-layer: T is used to denote the upper two layers, and sometimes the lowercase U is used to represent tu

5.The overall turn of **x means that the whole Rubik's Cube is 90° clockwise in the R direction, Y means that the whole Rubik's Cube is 90° in the U direction, and Z means that the whole Rubik's Cube is 90° in the F direction. xyz is the xyz axis of three-dimensional space.

6.Rotate 180 degrees: that's twice as many as 90 degrees, u2

As shown in the figure below: the more difficult formulas for the fourth-order Rubik's Cube are these two, one is a unilateral flip and the other is a swap of edges.

Unilateral flap: r u2 x r u2 r u2 r' u2 tl u2 r' u2 r u2 r' u2 r'

In the downgrading method, the timing of unilateral flapping is when the top cross is made, if the top cross can only be made into a T shape, it is necessary to reverse the unsuccessful single flute into a cross + type.

I feel that this is the simplest and best memorable formula, much simpler than those formulas that change in the front, back, left, right, and middle, mr2 b2 u2 ml u2 mr u2 mr u2 f2 mr f2 ml b2 mr2 mr2 is too complicated, and this formula is too complicated.

Opposite edge interchange: MR2 U2 MR2 TU2 MR2 MU2

The timing of the exchange of the opposite edges is when the top four sides of the flute are returned to their positions.

Of course, the master does not have to memorize the formula.

The central blocks of the fourth-order Rubik's Cube are not fixed like the third-order Rubik's Cube, and their orientation is variable (not visible on the surface, as it is made up of four blocks of the same color).

If the sum of the angles of the six central blocks is 90 degrees and 270 degrees after deducting 360 degrees, then this fourth-order Rubik's cube must have a singular situation where the yellow bottom "cross" that cannot appear in the third-order Rubik's cube is singular. The solution to not memorize the unilateral flap formula is to rotate 90 degrees along any axis, and then there will be four central planes and four edges to fail. If you adjust the center surface with the "one back and forth" method of "keeping the other center surfaces unchanged", and then adjust the edges, it will not appear that the "cross" on the yellow bottom surface will not appear in the case that the "cross" on the yellow bottom surface is singular.

However, there is also a possibility that bilateral flapping is required, because the sum of the angles of the six central blocks is 180 degrees after deducting 360 degrees. The solution is to rotate 180 degrees along any center line, and use the "one back and one back" method to align the center plane and edges, and the Rubik's Cube is equivalent to the real third-order Rubik's Cube.

In this way, to disrupt a fourth-order Rubik's Cube, the probability of unilateral flipping is one-in-half, and then the probability of two-sided flipping is also one-in-half. The probability of passing smoothly without flipping is 1 in 4.

You can count the number of rotation angles in the formula, the former must be 90 degrees more, and the latter must be 180 degrees more.

You don't need to memorize formulas to play Rubik's Cube, which is a little troublesome at most.