Questions tagged [rubiks-cube]

For questions about the Rubik's Cube and its variations.

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1answer
222 views

You'll be stuck in this maze, forever (Cubic Cipher)!

Okay, so I mentioned in another puzzle that I created a new kind of cipher, which I refer to as a Cubic Cipher, now that the way to solve it has been established, it's time to ramp things up. As ...
3
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2answers
4k views

Can two corners be swapped using commutators?

This question is about solving a Rubik's cube using commutators and conjugates - it is a question about the group theory of the Rubik's cube, rather than a "how do I" kind of question. This video ...
3
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1answer
237 views

How to reduce the number of OLL for a Cube

I use Fredrich methods to solve a $3 \times 3 \times 3$ Rubiks Cube but there are almost 54 OLL algorithms and I was wondering if there is a better method with less OLL algortim? When I solve the ...
3
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1answer
956 views

Axis mirror cube has one centre piece rotated by 90 degrees

In front of me, I have a z axis cube. Sometimes when I scramble and attempt solve it, I end up with one of the centre pieces being rotated by 90 degrees. I know that in principle it is not possible ...
3
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1answer
655 views

Can anyone explain me the logic behind a J perm(or similar)?

I learned to solve a Rubik's cube recently by intuition and some basic cube theory (not by myself). At the last step, I use corner 3-cycles and corner rotations to reach the final solved state. I ...
3
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1answer
753 views

What is the right algorithm for orienting the yellow corners. Beginners method 3x3

What is the right algorithm for orienting the yellow corners? Beginners method 3x3 I have tried about 2-3 websites but they don't have the algorithms. Could I have some help with the algorithms? ...
3
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1answer
432 views

How do I solve this F2L case quickly?

I have been unable to find a solution for this f2l case. It takes about 3 seconds to do, and I do it really slowly. Basically, the f2l case is solved, but the edge is inverted. The way I do it right ...
3
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2answers
83 views

Rubik's adjacent corners exchange

I want to make the pattern as shown in the images I get stuck at the last with two adjacent corners to be interchanged. How do I do this ?
3
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2answers
2k views

Algorithm for a single diagonal on each face of the Rubik's Cube

Right now I am trying to get the following distorted position: On each face only one diagonal is solved and the rest of the cubes are a different colour than the diagonal. For example: If I am ...
3
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0answers
116 views

Double edge swap 3x3 [duplicate]

So I looked into this a little bit, what's odd is my cube can be scrambled and solved unlike cubes that were assembled or reassembled incorrectly, so they always get this situation. My cube is a ...
2
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3answers
327 views

Rubik's cube with no squares of same color nearby

It's easy to 'scramble' a Rubik's cube so no squares of the same color are touching each other. The moves U2 D2 R2 L2 F2 B2 accomplish that. A side with no squares of the same color nearby requires ...
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3answers
2k views

Simplest Rubik's cube “algorithm” with cycle length 3

A regular Rubik's cube has a staggering number of possible states. However, that number is most decidedly finite; after all, a quintillion is just as far from infinity as seven is. From this ...
2
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1answer
122 views

Can you build a Rubik's Cube? [Part 2]

You are given an disassembled Rubik's cube (Detachable centers,corners and edges). You are then blindfolded. If you assemble the cube while being blindfolded. What is the probability that the cube you ...
2
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1answer
418 views

How do I fix this Rubik's cube

I finished the cube but got this on 1 side: How do I fix it without ruining it? It is fixable, I did it once but I don't know how I did it.
2
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1answer
374 views

Dayan speed cube 3x3x3 all corners twisted?

I have solved 3x3x3 cubes as well as 4x4x4, 5x5x5, 6x6x6, 7x7x7 and the megaminx from some time now but this one is really bugging me. I won't consider my self an expert but I have not experienced ...
2
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2answers
398 views

Four flipped edges in the equator layer

Very often I get situation like this: I am interested in manual solving, so automatically generated solution is not useful (like with Kociemba algorithm). Currently I use twice the two edges flip (E ...
2
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1answer
93 views

5x5 Rubiks Cube edge algorithm

I'm following the tutorial on Ruwix, and either they're making a mistake or I am. When solving the edges they give the image: This is my first attempt at a 5x5 and this step confused me for a long ...
2
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2answers
130 views

Is there a good method to solve this kind of Rubik's cubes?

In the office's kitchen we have a 3x3x3 Rubik's cube that is, well, unusual: instead of simple colours on the faces, there are pictures. While solving the rest of the cube is no different from ...
2
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1answer
3k views

Question about a “sexy move” tutorial

I'm using this tutorial to learn solving the cube with "sexy move" - https://sites.google.com/site/cubetutorials101/3x3-rubik-s-cube/3x3-beginner. It all goes well until the final step where it says "...
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2answers
506 views

How many stickers need to be cycled on a Rubik's cube before the chance it's unsolvable drops below 11/12?

This is a question I'm actually looking for the answer to. It's known that when you swap individual pieces on a Rubik's Cube, the probability that afterwards it will be possible to solve is 1/12. ...
2
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1answer
119 views

How to solve this Rubix cube? [duplicate]

Help!!!! Is this rubix configuration solvable? These are the only two pieces in the wrong place. If the answer is no, what pieces do I need to reconfig to make the cube solvable? Note that my kid ...
2
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1answer
59 views

Rubiks 3x3 Cube Solution - an old method to relearn (3 corner rotation)

I am trying to relearn a method for solving the 3x3 Rubik’s cube that I was taught many years ago by a departed relative – it is for this reason that I want to relearn this method, eventhough it is ...
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2answers
332 views

What's the most efficient method to scramble Rubik's Cube to consider it as sufficiently scrambled?

I am enthusiast of rubik's cube but recently I got a question and I thought more opinions would help to settle this discussion in my head. So I scramble the cube, just random twists multiple times and ...
2
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2answers
76 views

My Moyu Aolong V2 speed cube feels wrong after lubricating

I just used some off-brand, hardware store silicone aerosol and let it sit for 15-20 minutes. Now, it turns very quickly, but the force needed to turn exceeds the force needed to turn it 45 degrees, ...
2
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1answer
817 views

3x3x5 Rubiks Cuboid: Swapping Adjacent Edges

I have a 3x3x5 cuboid in the position shown (all pieces correct except for the two edges you can see. The must be a parity issue, but I can't get around it whatever I try. The only parity issue that ...
2
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1answer
360 views

Solve 5 last corners in 4x4x4

OK, so I'm trying to solve this 4x4x4 cube with least possible memorized algorithms. So first I follow the basic conversión to a 3x3x3 configuration, and then I used some Pitrus method, so I build a ...
2
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1answer
1k views

What are the official rules for generating Rubik's Cube scrambles?

I am writing a program that will keep track of the data I generate from speed-solving Rubik's cubes, and the first component is to generate a scramble. As is stands, my program currently creates a 30-...
2
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2answers
506 views

how to shift all 4 corner pieces of the white face by one position

A white face with edge pieces properly oriented but corner pieces mis-oriented by one position: How can I shift all 4 corner pieces of the white face by one position?
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1answer
809 views

What is the equation to solve the puzzle box Super-CUBI 324 step

The Super-CUBI puzzle box takes 324 steps to open or close it, instructions. And uses a Trinary System. It must have a solution as it would be hard to remember all the steps to take to open it. But ...
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1answer
213 views

Blindfold Rubik's Cube

While solving blindfold, I'm facing this rather icky situation where a cycle of edge or corner pieces end with an inverted piece. For example, if I start a cycle with B (White and Red) and it ends ...
2
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1answer
2k views

Last layer corners on octagonal cube swapped

I've recently started to dabble into rubik's cubes. For the most part, I've been struggling with a 3x3 octagonal cube. My issue is that I seem to often run into the issue of 2 shaved corners being ...
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1answer
4k views

Confused about step 5 of official Rubik's 3x3 Cube solution

Solution guide: http://rubiks.com/uploads/general_content/Rubiks_cube_3x3_solution-en.pdf I can get to this point pretty reliably now, but when I try the method shown I'm just as likely to go from ...
2
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0answers
320 views

What is the next method after 3-style in 3x3 Blindfolded?

I have been using the method 3-style for over 2 years, 3-style and I have settled in the range of 25-30 seconds. I wish to permanently become sub-20, and for that I am planning to undertake the ...
2
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0answers
351 views

How many known distance-20 positions are found so far for the Rubik's cube in half-turn metrics?

This site says: "All 93,659,370 known distance-20 positions as of 18 March 2014 are available below." And in total there are about 490 millions of them. This information is 3 years old. Does anybody ...
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5answers
5k views

Solved Rubik's 3x3x3 - should I do the 4x4x4 next? [closed]

For years I have been trying to solve the 3x3x3. Over the last several weeks I was determined to do it. With the help of several online tutorials and video's I can now solve it. My average is ...
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2answers
181 views

Rubik's cube corners backwards?

After long time i took the rubik's cube and wanted to solve it, but i feel like there is something wrong with the corners. Hope that you smart peapole over there can tell me what's going on.
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2answers
184 views

I am stuck with the situation as given in the image

I am stuck as below image. Can this be solved ?
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1answer
5k views

Is twisting a corner of a Rubik's cube a valid move?

I believe the question is self-explanatory but I'm asking the question in different contexts. I understand that it makes the 3x3x3 unsolvable if you twist a single corner but there are cases where it ...
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2answers
2k views

How would I flip an edge piece in a 3x3 without messing anything up except for flipping that one piece?

I am new to picture cubes and I want to know how to flip an edge piece on a picture cube 3x3 without messing anything else up. Like here from this: To this:
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1answer
512 views

How to swap adjacent corners?

I want to swap adjacent corners of U layer, the only thing I care is: position of other 6 corners. I don't care: orientation of all corners position of all edges orientation of all edges The goal ...
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2answers
496 views

Swap Rubiks Cube Corners Diagonally Across

My cube has ended up in a position where I need to swap the corners diagonally across to finish the cube. However to my understanding this is impossible. Is there another way to solve this? I tried ...
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1answer
5k views

Rubik's cube with twisted corner

So I was messing around with my newest Rubik's cube, and I apparently twisted a corner when solving it, and now I don't know what corner it was. If there is someone out there that knows how to ...
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3answers
4k views

Rubik's cube: rotate 2 opposite corners

Is there an faster algorithm to rotate 2 opposite corners? I can't find anything else but doing the sexy move multiple times.
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1answer
34k views

How to swap two opposite corner pieces of a solved face?

I have a solved white face but I want to swap two opposite corner pieces of the white face to form a T-shape on the back face. How can I achieve this without messing up the other pieces on those two ...
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1answer
132 views

Help to solve rubik cube 3*3*3

How to solve my rubik? Which pattern left?
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1answer
121 views

Rubik's cube invalid state? Yellow cross starts with odd number of edges

In solving a Rubik's cube, I've been following the standard beginner instructions. I'm now trying to get the "yellow cross" step done (on the blue side, because I started with solving green), but I ...
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1answer
585 views

Non-reduction methods for solving the 4x4 Rubik's cube

I have a 4x4 Rubik's cube (aka Rubik's Revenge), which I can solve by reducing it to a 3x3 and then solving the 3x3. However, this can result in "parity" cases, where a single edge of the 3x3 is ...
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2answers
1k views

Swap diagonally opposite corners of one face without changing orientation and without affecting rest of cube?

I'm not even sure if it's possible to do this or not. I have a hypothetical PLL-situation where I need to swap one opposite-corner pair of a single layer. Like, a V-perm but without moving the edges:...
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1answer
1k views

How to swap two edges like this? [duplicate]

Does anyone know an algorithm to swap two edges in this position, without scrambling the first two layers?
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1answer
456 views

Rubik's cube - Ideal solution book - Rubik's maneuver

I did a search here, but didn't find any references to the 1981 "The Ideal Solution" booklet, which was one of the early solution guides for a 3x3x3 cube. There was also a 1982 Ideal solution booklet ...