Questions tagged [rubiks-cube]

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

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1answer
64 views

Rubiks cube 2 look PLL - name of this algorithm?

I'm currently learning 2-look PLL and came across this pdf with some algorithms: https://www.cubeskills.com/uploads/pdf/tutorials/4-look-last-layer.pdf I went through and gave names to the algorithms ...
10
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1answer
312 views

Minimum effort to detect a solved Rubik's Cube

When writing a program to permute a Rubik's Cube and then subsequently detect whether it is solved or not, what is the absolute minimum amount of programmatic effort required to determine if the cube ...
2
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1answer
98 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 ...
7
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1answer
300 views

Cube Scrambling

Take a normal 3x3 rubiks cube (the Classic unmodded cube). I know the WCA method for scrambling is to pick a random (valid) cube state and calculate a sequence of moves to go from solved to that state,...
3
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1answer
118 views

Rubik's Cube: Does going from one arbitrary configuration to another have same God's Number as solving it?

Assuming two different (valid) configurations for a Rubik's Cube - A and B - does going from A to B directly have the same complexity as solving the cube? Considering solving a cube can be done in 20 ...
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1answer
101 views

What order should I learn CFOP in?

I have been solving the 3x3 using the beginners method for about 2 and a half months and I was wondering what order I should learn CFOP in. I was thinking of learning advanced f2l first and then oll ...
1
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1answer
87 views

Misaligned Cube: How to fix? [duplicate]

There must have been an accidental turning of corners. Now, I do not know how to turn corners, so that the cube is solvable again. The red and blue edges are the only misaligned pieces.
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0answers
75 views

Can this Rubik's cube be solved? [duplicate]

All sides of the Rubik's cube are solved, except the corners. And these corners need to be swapped.
1
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1answer
230 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 ...
6
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1answer
106 views

Rubik's Scramble Search

Find a scramble which will produce a Rubik's cube fulfilling the following criteria which uses as few turns of faces as possible (Half-Turn-Metric): Each of the six faces show exactly three colours ...
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1answer
113 views

Help to solve rubik cube 3*3*3

How to solve my rubik? Which pattern left?
3
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1answer
161 views

Rubiks Cube 4x4x4 Top Layer Issue - One Edge Pair Flipped

I have trouble with that edge. Please give algorithm or images for solutions for turning it up so that I can form a cross.
6
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1answer
225 views

$4\times4\times4$ Rubiks cube Top Layer Issue

The only way i am able to solve is to jumble the whole cube again. If you know the way to solve pls give images or algorithm.
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2answers
181 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 ...
5
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1answer
171 views

What kind of parity is this? (5x5)

I was just solving my 5x5 cube as always, but at the end I got this configuration and haven't found anything regarding this kind of parity. I am pretty sure all squares are correctly placed and no ...
0
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1answer
152 views

I don’t know how to solve the last pieces

So, I almost finished a rubik’s cube, but the last 3 pieces are not in their places (green on red face, blue on green face, and red on blue face). Apart from these, the other faces are done. How can ...
-2
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1answer
535 views

One corner piece orientation problem - Rubik's Cube [duplicate]

! I have been trying to solve Rubik's cube using beginner's method provided here: https://ruwix.com/the-rubiks-cube/how-to-solve-the-rubiks-cube-beginners-method/ I ended up with just one last ...
1
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2answers
179 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.
1
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1answer
106 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 ...
1
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1answer
142 views

Identifying this cube

I have a MoYu cube that goes quite well, but I am unsure what model it is. I have looked everywhere, but to no avail. Pictures for the cube and its insides have been provided. Thanks in advance! (...
3
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3answers
958 views

2×2×2 rubik's cube corner is twisted!

Is there a way to solve it? If so how?! I have tried remixing it over and over but I haven't solved it yet :/
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2answers
180 views

I am stuck with the situation as given in the image

I am stuck as below image. Can this be solved ?
2
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1answer
205 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 ...
7
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1answer
169 views

Unsolving a Rubik's Cube

A few days ago I picked up a solved Rubik's Cube that I had abandoned due to forgetting how to solve it, and started turning the faces to make nice patterns. A few minutes later, I'd made one - each ...
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0answers
67 views

How to Move two Horizontaly opposite edges on Rubik's Cube [duplicate]

I solved my 3x3 Rubik's cube, but then saw that two pieces were flipped and needed to be moved to the other pieces' spot. I have looked for solutions ,but they all are only about different spots. I ...
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1answer
812 views

What is th GAN 356 X VIP card for? [closed]

I have looked all over the internet but can not find answer to my question. Can someone please help me?!
3
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1answer
2k views

How can I switch 2 yellow corners that are on the same face from a 3x3 cube?

How can I switch there two corners?
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0answers
62 views

A Rubik cube question [duplicate]

I have seen professionals solving Rubik cube they are very fast. I can also solve the cube but I take 1 minute . How to solve it in minimum time is there any algorithm or just practice. Tell me some ...
8
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1answer
605 views

Flags in all faces in rubik cubes

Anyone knows if it is possible to obtain a diferent country flag in all six faces of the Rubik Cube? Thanks
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1answer
164 views

What is “God's Number” for Specific CFOP Algorithms on the 3X3 Rubik's Cube?

CFOP: What is God's Number for PLL and OLL Algorithms? I have been "speedcubing" on and off for 5-6 years now using CFOP and throughout my experience have come across many different algorithms for ...
12
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1answer
900 views

Can you make a Rubik's Cube pattern with a 4 color flower on every side?

I enjoy putting my cubes into aesthetically interesting patterns (using legal moves, of course). I'm trying to make a pattern where each side has exactly 4 different colors in the following ...
2
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2answers
73 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, ...
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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:
2
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2answers
124 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 ...
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0answers
154 views

Best strategy for Multiple Blindfolded 3x3 Rubik's Cube event (WCA)

The MBLD event is quite hard on the technique and the memory , testing the 3x3 Blindfolded method. The cube placement strategy as discussed by few officials stand at : Cube Placement The other ...
3
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1answer
193 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 ...
2
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3answers
280 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 ...
3
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1answer
707 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 ...
2
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0answers
273 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 ...
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2answers
133 views

Chance of getting an “easy scramble” with cross already solved?

I read a blog post recently about the limit of speed-solving records getting to a point that rely on easy scrambles to beat. One of the most obvious head starts would be to get a scramble that already ...
3
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1answer
437 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 ...
1
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2answers
439 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 ...
7
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2answers
455 views

How to get faster at 3x3

I am new to speed cubing and would like to figure out how to get faster at cubing based on my personal stats. Which aspect should I focus on? Which principles would be the most useful for me (...
7
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4answers
1k views

How do I solve the top yellow layer of the Rubik's cube?

I used to solve the Rubik's cube using the standard algorithm. Recently, after a long time I tried doing it again. I did revisit the algorithm to solve the Rubik's cube, but I'm stuck in the top ...
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0answers
210 views

How do I solve the first phase (corners) of the gear cube when only one corner is out of place?

I got a gear cube and started scrambling with wild abandon. Then I stopped and tried to solve it. I couldn't. I went online to watch YouTube videos. I learnt there are three phases involved in solving ...
7
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1answer
603 views

Illegal patterns for the Rubik's cube

It is known that if you take apart the Rubik's cube and then reassemble it randomly, you will end out in one of $12$ cases, among which only one is solvable. The others result in having (1) one piece ...
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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
338 views

Unsolvable enigmatic 3x3x3 Rubik's cube?

Haven't seen this problem on any other video or blog post; need help if you feel up to the challenge. So I have finished the 3x3x3 Rubik's cube using the F2L method ... except the top player two ...
3
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2answers
3k 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 ...
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0answers
113 views

How can I become sub-30 speedcuber? [duplicate]

I am young speedcuber (in primary school) and I use Fridrich to solve a cube. I know all 21 PLL algorithms and 7 OLL. My best is 28 sec and average is 39 sec. Do you have any tips that can help me ...