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It's simple, you just put him up by hand, if you can't buy another one, it's a big deal, there's a screw in it.
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Second-order Rubik's Cube. Rubik's Cube 2nd Order Generally refers to this entry.
The second-order Rubik's Cube (English: Pocket Cube), also known as Pocket Cube, Mini Rubik's Cube, Small Rubik's Cube, and Ice Cube Cube, is a cube structure of 2 2 2. There are only 8 corner blocks in itself, and there are no other structural blocks.
The structure is similar to that of the third-order Rubik's Cube, and it can be restored by using the formula of the third-order Rubik's Cube.
Chinese name. Second-order Rubik's Cube.
Foreign name. mini cube
Alias. Pocket Rubik's Cube.
Inventor. Peter Sepostani.
Fastest record. Second.
Fast. Navigation.
Records related to the second-order Rubik's cube commonly used in the production of patented restoration methods.
Total number of changes. The second-order Rubik's Cube has 8 corner blocks with 8!24=1680 kinds of position arrangement, each arrangement has 1107 color directions (color direction is conserved in twisting, and most of the theoretical color directions of 3 to the 8th power are not possible), that is, the second-order Rubik's Cube is scrambled and has a total of (8!
3^7)/24=7!3 6 = 3674160 states.
Second-order Rubik's Cube. The farthest recovery distance of the second-order Rubik's Cube (i.e., the state that most requires the most steps of recovery) is 11 full rotations, or 14 normal rotations, which can be calculated by a computer using an exhaustive algorithm.
Number of rotations The number of states of the Rubik's cube with full rotation restoration The number of states of the Rubik's cube with normal rotation restoration.
Production patents. Second-order Rubik's Cube.
The earliest patent for the second-order Rubik's Cube was applied for by Professor Rubik Airne on March 29, 1983, and the U.S. patent number 4378117, which we are accustomed to call the second-order Rubik's Cube with R structure.
On October 27, 1998, Chen Sen-li of Eastsheen Corporation in Taiwan filed a second-order patent for another structure, US Patent No. US 5,826,8715826871, we are used to calling it the second-order Rubik's Cube of the Dongxian structure.
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The specific steps are as follows:
1. First of all, the second-order Rubik's Cube.
Since there is no center block, you can just find a side that has white horns and is very popular.
2. Next, use the third-order Rubik's Cube.
The method of finding neighbors restores the two corner blocks, and after that, check whether the color is the same under the restored corner blocks.
3. Use the same method to restore a corner block.
4. And so on, put the remaining corner blocks together, and check whether the color is the same under the white corner blocks. After the bottom surface is put together, the top surface is spelled.
5. After completing the top surface, the next step is to find the finished surface and face yourself. Once found, put the finished face, facing yourself, and complete the six sides.
6. After the formula is successful, you will find that the second-order Rubik's Cube has been restored.
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The corner second-order pyramid is a special-shaped Rubik's cube made on the basis of the second-order pyramid, this Rubik's cube is more special, and the internal bow structure can only be rotated under a certain shape, so before playing this, you must know how to scramble it.
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Its principle is very simple, it is nothing more than two sides first, and then directly adjust the corner blocks of the upper and lower layers, and it is done! This step is called xll
Important: You don't need to think about aligning the colors when finishing the bottom and top surfaces! Only need to complete both sides first! That's the key to this quick solution
Process: Step 1: Bottom -- Step 2:
Top Surface (OLL) - Step 3: Overall Corner Change (XLL) Complete! Step 1:
The fifteen-second observation of the bottom step is very important, try to think about the completion of the first side within fifteen seconds, and strive to complete one side in two seconds!
Step 2: OLL (2nd side) There are not many second-order OLL, there are the following types, and the formula is very convenient OLL1 R2 U2 R' u2 r'2oll2 f rur'u' rur'u' f'oll3 f r u r' u' f'oll4 r u r' u' r' f r f' oll5 f r' f' r u r u' r'
Step 3: In this step, the speed of observation is the most important, here is not like the third order, only need to judge one layer, you need to judge the upper and lower layers at the same time, but in this step, there are only three major situations of PLL, which is very good to judge, mainly to observe the adjacent color blocks. Diagonal judgment skills of the upper and lower layers:
The whole Rubik's Cube is divided into two layers, and then the upper and lower layers are not the same color together r2 b2 r2 r2 upper layer of the first two adjacent angles of the lower layer diagonal judgment skills: The whole Rubik's cube is divided into two layers, only the upper layer has two identical colors put together If the lower layer is put together, immediately turn the entire Rubik's Cube 180 degrees r' u r' b2 r u'rThe upper and lower layers are only changed to the two adjacent angles in front of the judgment skills: The whole Rubik's Cube is divided into two layers, and both layers have two identical colors put together R2 U' r2 u2 f2 u'r2Of course, maybe you're lucky, (or unlucky) to have one side done when you finish both sides, then there are two more PLL cases L' u r' u2 l u' l' u2 l r u'r u' r' u' f2 u' r u r' u f2r u2 r' u' r u2 l' u r' u' l
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1. First restore the bottom corners: this step is to restore the 4 corners of the bottom layer.
2. Use algorithm 1 to the right for white, turn to the right first, r u r2 r u r2.
3. Use algorithm 2 to move forward in white, first turn the curved surface of the large stove, f2 u2 f u f2 u2 f.
4. Repeat 4 corner blocks, and you can do a good job of the bottom layer.
5. Then restore the top color: this step is to restore the color of the top surface of the 4 corner blocks.
6. Situation 6 is to use formula 2-2 first, in other cases use formula 2-1 first, and in other cases use formula 2-1 first.
7. Then restore the top layer of the corner block: if there is a situation like this, rotate the corner block of the same color to the position facing you.
8. Use this algorithm again: r b2 r f2 r2 b r f2 r2, you can complete the code into a reduction and boring.
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The second-order base model demon Mu Feng did not have a way to recover.
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The question of how to restore the second-order Rubik's Cube requires a third-order foundation.
You can think of the second order as the third order, and all the formulas and gameplay of the third order apply to the second order.
In fact, there are not only second-order, four, five, six, seven......
All of them have to be transformed into the third order.
Therefore, the third order is the foundation, and the third order will be completed, and basically all the positive levels can be played.
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How to restore the second-order Rubik's Cube.
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Step 1: Find a corner block with a white side and put it on the bottom surface, and then look at the color of the other two sides of this piece, for example, if it is blue, find a corner block of blue and white. Then make the blue face to yourself, and the white hand to the right hand and the left hand if the white is left.
The right-handed formula is: top right, hit left, bottom right. The left-handed formula is: top left, hit right, bottom left.
Step 2 (take the top yellow as an example): first position the top surface, if the top surface is not yellow, turn the yellow to the left. If the top surface has a yellow color, place the yellow corner block on the lower left. If there are two yellows on the top side, put the yellow side against yourself.
Then memorize this formula: top right, hit left, bottom right, hit left, top right, hit left twice, bottom right.
Step 3: Two pieces of the same color face yourself, then use the following formula: top right, back boiling water, top right, boiling water twice, bottom right, back off water, top right, boiling water twice, top right twice.
Boiling water means turning 90 degrees clockwise on the side facing you, and turning 180 degrees twice.
The second-order Rubik's Cube, also known as the pocket Rubik's Cube, mini Rubik's Cube, small Rubik's Cube, and Ice Cube Cube, is a cube structure of 2 2 2. There are only 8 corner blocks in itself, and there are no other structural blocks. The structure is similar to that of the third-order Rubik's Cube. It can be restored using the formula of the third-order Rubik's Cube.
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Second-order Rubik's Cube. Recovery Method:Ascending, right, up, right, up, up, forward, up The second-order Rubik's Cube is a relatively simple Rubik's Cube, also known as the Pocket Rubik's Cube, the Mini Rubik's Cube, the Small Rubik's Cube, and the Ice Cube Cube, which itself has only 8 corner blocks and no other structural blocks.
Structure with a third-order Rubik's Cube.
Similarly, it can be restored using the formula of the third-order Rubik's Cube.
The origin of the second-order Rubik's CubeThe earliest second-order Rubik's Cube patent was Rubik.
Professor Airnay applied for the patent number on March 29, 1983.
4378117, we are used to calling it the second-order Rubik's Cube with R structure.
On October 27, 1998, Chen Senli of Taiwan's Dongxian Company applied for a second-order patent for another land-making structure, US Patent No., US5,826,8715826871, which we are accustomed to calling the second-order Rubik's Cube of Dongxian structure.
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Play the color of the first layer consistently, and make the color of the side of the first layer the same as the color of the side of the Rubik's Cube 4.
The second level of formulas: upward straight - right straight - upward reverse - right reverse - upward reverse - forward reverse - upward straight - forward straight.
The third level of the formula (starting cross): right reverse - upward reverse - forward reverse - upward straight - forward straight - right straight.
The third layer of the formula (four-corner block): right shun - upward shun - right reverse - upper shun - upper shun 180° - right shun - right inverse.
The third level of the formula (also four corners): right straight - upward - right reverse - upward reverse - right reverse - forward - right straight 18° - upward reverse - right reverse - upper reverse - right straight - right reverse - forward reversal.
The third level formula (also centered): right straight - upward reverse - right straight - up straight - right straight - upper shun - right straight - lower reverse - right reverse - upper reverse - right 180°
Concentrate! :Clockwise: Ninety degrees clockwiseReverse: Ninety degrees counterclockwise.
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Second-order Rubik's Cube: The more common type of Rubik's Cube.
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There are two scenarios.
One is that the corner block to be homed is below the one to be homed, just press ri di r d
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The third-order corner block formula, the third-order top-level formula. Will it be third-order? Don't make the cross, just put the corner block.
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When the third order as long as you know the third order.
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When the third-order Rubik's Cube comes to play, it is enough.
No need to change edges, no need to erect crosses.
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Second-order Rubik's Cube restoration tutorial.
1. Restore the bottom corners, white turns to the right at the first time on the right, and white turns to the front at the first time on the front. If the white color is on the top surface, as shown in the figure below, it will become case 1 if you use the formula ru once, or use f once'u'It's good to turn into case 2 and then deal with it as case 1 or 2. >>>More
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Yes, the third order has eight corner blocks, which is actually the same as the second order, and learning the second order can be used as a certain foundation for the third order. >>>More
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