How can I quickly assemble a Rubik s Cube? Urgent!!!

The process of restoring the Rubik's Cube is as follows: first restore the first layer, including the bottom surface and the four sides near the bottom surface, and the next thing to do is to complete the second layer: to the center, to the edge around the center The third layer:

To the top cross, to the side cross, to the top, to the four corners u: above d: below r:

Right l: Left f: Front b:

Back r2: 180 degrees clockwise on the right side Individual letters, e.g. r is 90 degrees clockwise on the right side and r' is 90 degrees counterclockwise on the right side.

See the first layer, don't use formulas, solve it yourself. The second layer has two steps: 1) For the center, it is easy to match with the restored first layer 2) For the center edge, you can operate according to the formula shown in the figure:

Generally, the third layer is the top cross, the right cross (the overall view is the side cross is all good), the top surface, the four corners Formula four: (r u r' u'）f' ' u2 r u r' u r b' r f2 r' b r f2 r2 4.（r u' r）（u r u r）（u' r' u'r2) The formula you have to do is 3 for the top surface and 4 for the four corners.

See also: The simplest way to play the Rubik's Cube - non-formula method (** layer first method.

The fastest main method to reduce the Rubik's Cube is CFOP (119 formulas.

1. Four formulas of the Rubik's Cube.

1. Up, right, down, right, backward, left, - swap the positions of the small squares on the two adjacent vertices above.

2. Up, left, down, down, down - swap the positions of the small squares on the two diagonal vertices on the top.

3. Up, left, down, left, up, left, left, left, left, the small squares on the three vertices above are rotated 120 degrees at an angle.

4. Up, left, up, left, up, right, right, down, right - exchange the small squares in the middle of the three edges in turn, and ensure that all the other small squares do not move.

Second, all the formulas can ensure that the position and angle of the small square below remain unchanged. You can start with one side of the Rubik's Cube and use this as the bottom. And then.

1. Adjust the position of the four small squares on the vertices above with the formula.

2. Adjust the angle of the four small squares on the vertices above with formula 3.

3. Use formula 4 to adjust the other small squares located on the edge.

Common terms. nth order: The order refers to the number of blocks common to the two adjacent rotating surfaces of the main part of the Rubik's cube, such as the third-order Rubik's cube.

There are 3 small blocks on each side, and there are 5 blocks on the two adjacent rotating surfaces of the pyramid cube, but there are only 3 blocks in the main part, so it is also of the third order.

Restoration: refers to the process of going from a non-original state to an original state of the Rubik's Cube.

sub: The original text is "subtraction", which means "less, less than", and in this case "under xx seconds". For example, 3 3 blocks sub30 refers to the average speed.

Under 30 seconds. The calculation method is to remove the fastest and slowest two times after 5 timing restorations and take the average value.

DNS: The abbreviation of "did not start" refers to the waiver of a recovery opportunity and the failure to start recovery, that is, abstaining before the start of recovery.

DNF: Abbreviation for "Did Not Finish". Refers to the entrant.

Feeling that you will not be able to complete the Rubik's Cube in a satisfactory time, you will abstain, or press the timer.

The Rubik's Cube was not restored. Only one DNF can be counted in a match with an average of five finishes (counted as the worst result), and if there are more than two DNFs, the average score in the event is a DNF.

WCA: World Cube Association, the World Cube Association was established in 2003 and is mainly dedicated to holding the Rubik's Cube Speed Screwing Competition. 1982 in Hungary.

The results of the World Cube Championship held were also recognized by the WCA.

Here's how to quickly spell a Rubik's Cube:

First of all, you should set the center of the Rubik's cube, choose one of the 6 colors you like, and then position and orient the 4 edge squares on the plane of the center square with this color, that is, the top edge. The goal is to position and orient the blocks that belong to the 4 edges of the top plane. The 4 top edge squares are placed and oriented one by one.

Position and orient the 4 corner squares on the selected top plane, i.e., the top corners. The purpose of this step is to position and orient the 4 blocks that should belong to the corners of the top surface while maintaining the top edge squares that have been placed. During this series of rotations, the headhead early edge block will be temporarily moved, but will be properly restored.

Position and orient the 4 edge squares of the layer below the top plane, i.e., the middle edge. The purpose of this step is to position and orient the 4 edge squares below the top plane. This step can be seen as an unraveling of the "middle plane".

Once this step is completed, two-thirds of the Rubik's Cube is complete.

Position and orient the 4 corner squares on the bottom plane, i.e. the bottom corners. This step is to position and orient the 4 corner squares on the bottom plane. This is done by positioning first and then orienting, this time the 4 blocks are not placed separately, but as a group at the same time.

Position and orient the 4 edge squares on the bottom plane, i.e. the bottom edge. Look at the position of the bottom edge: if none of the edges are squared correctly:

Do the following set of rotations, this time just keep the top and bottom sides unchanged, and then look at the bottom after the rotation to determine the next rotation.

If only one edge square is in the correct position: hold the Rubik's Cube correctly so that the edge square with the correct position or orientation is in the position in front of the bottom, and then look at the bottom to determine the next turn.

There are two correct edge squares in the correct orientation: the correct square position is opposite: the correct square is positioned in front of the bottom and behind the bottom; Correct Block Position Adjacent to Place: Blind the correct square to the front and right position of the bottom.

Restoring the Rubik's Cube can be done in seven steps.

The first step is to make a green cross at the top. Available formulas: (Right Reversed, Ascended, Anterior Reversed, Ascended Reversed).

Note) Here reverse refers to counterclockwise, and forward refers to forward pointer. The Rubik's Cube is divided into up, down, left, right, front and back, so the above situation will occur.

First, find the green in the center, then use this green as the center, find the four green edges around him, and finally put together a green cross. If you want to make this green cross, you have to find it from the green edge in the middle.

The second step is to make the green corner blocks back into place. Available formulas: (Right Reversed, Reverse Down, Straight Right, Straight Down) The formula can be repeated multiple times.

The third step is to return the middle edges. This can be both.

The formula for the first case is: (Ascend, Right, Ascend, Right, Right, Ascend, Forward, Ascend, Ascend).

The formula for the second case is: (upward reversal, forward reversal, upward order, forward order, upward order, right order, upper direction, right reversal).

The fourth step is to put the top edge back into place. Available formulas: (Forward Straight, Right Straight, Up Straight, Right Inverse, Up Inverse, Forward Inverse).

The fifth step is to put the top edge in place. Available formulas: (Right Straight, Ascend, Right Reversed, Ascended, Right, Ascended, Reversed).

The sixth step is to return the corner blocks on the top layer. Available formulas: (Ascend, Right, Upward, Left, Ascend, Right, Ascend, Left).

The seventh step is to return the top corner blocks to their positions. Available formulas: (Right Reversed, Reverse Down, Straight Right, Straight Down) can be repeated multiple times.

At this time, you must pay attention to holding the Rubik's Cube, which is the red side in front, turn the top layer clockwise (up and down), and then turn the corner that needs to be rotated to the upper right position. Follow the formula a few more times, when doing the steps, the lower level may be messy, don't worry, just continue to do it according to the formula.

The Rubik's Cube is generally solved using a layered method. Here's how:

1. Restore the top edge block to the top cross.

2. Restore the top corner block.

3. Restore the middle edge block.

4. Cross to the bottom and restore the bottom edge block.

5. Flip the bottom corner block and align the background color. (To make it easier to understand, turn the cube upside down.) ）<

6. Adjust the position of the bottom corner block to complete the reset.

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

In 1974, Professor Rubik invented the first Rubik's Cube (then known as the Magic Cube) and in 1975 received the Hungarian patent number 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.

The simplest guide to the restoration of the three-sided Rubik's Cube, just play the basic Rubik's Cube and read this one!

Tools Materials

nbsp;Rubik's Cube.

How it works:

nbsp; 01

First, put the white block in the middle (the one with the rubiks logo) on it, and then make a white cross at the top, that is, the other colored blocks are in the corresponding position (small complex, see the diagram, pay attention to the mantra marked above, do it correctly).

nbsp; 02

Then it's a simple step to put the white corner blocks in place.

Then let the middle edge block be homed. Turn the white side downward, find the red and green side blocks, if the red and green edge blocks are on the top layer, then rotate the top layer in a clockwise direction until the side blocks are the same as the one in the diagram, and then turn the Rubik's Cube according to the formula to make the side blocks return to their positions. If the red and green edge blocks are in the middle layer, but the position or color is wrong, first make the red and green edge blocks in the front right position, and then rotate them again in one of the following orders.

Then adjust the top (which should be yellow) side block upwards to make a yellow cross. If the yellow cross does not appear on the top layer after 1 rotation of the formula, you can repeat the rotation until the yellow cross appears.

Then adjust the yellow corner blocks around the cross, which is a bit difficult, just look at the mantra prompts.

Usually at this time, the yellow block and the color of the side will be misaligned, and the yellow block at the four corners will be positioned according to the mantra (I haven't read it yet).

Finally, adjust the color blocks on the edge to the corresponding position. Succeed with flying colors!

Special Tips

To crack the Rubik's Cube, we must first understand its structure, the Rubik's Cube has a total of 6 colors and 6 sides, and each side is divided into ** blocks (6 blocks in the middle), corner blocks (8 blocks in 4 corners) and side blocks (12 blocks in the middle of 4 edges). Among them, there is only 1 surface of the ** block, and they are a fixed structure, so ** is a red block, so the other red colors must be concentrated on this face.

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

Stage: Restore the top corner block.

Stage: Restore the middle edges.

1. Remember the Rubik's Cube formula, R represents the right turn, L is the left turn, M is the middle separate turn, U is the top turn, D is the bottom turn, F is the side facing yourself, and the letter is added ".'It represents counterclockwise rotation, lowercase letters indicate double-layer rotation, and 2 after the letter represents two 180° rotations.

2. Follow R'uf'u'Make a cross at the top and press R'd'rd to put the white corner blocks in place, if the red and green edge blocks are on the top layer, you can follow the uru'r'u'f'If the red and green edge blocks are in the middle layer, you can first make the red and green edge blocks in the front right position, and then rotate according to the formula.

3. Follow FRUR'u'f'The mantra makes the top layer appear in the form of a yellow cross, and then follow the lul'ulu2l'，r'u'ru'r'U2R rotates to adjust the position of the yellow corner to the perimeter of the cross.

4. Follow RU2R'u'ru2l'ur'u'L's mantra locates the yellow blocks at the four corners, and finally follows F2'ulr'f2rl'UF2 rotates the Rubik's Cube and adjusts the color on the edge to the corresponding position.