Questions tagged [rubiks-cube]

For questions about the Rubik's Cube (a 3-D combination puzzle) and its variations.

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-1 votes
1 answer
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Combinations of a Rubik's Cube

I recently got a Rubik's Cube and learnt how to solve it, and as anyone has I tried shuffling it to the 'hardest' possible state to solve from, for which my criteria was: none of the same coloured ...
5 votes
1 answer
326 views

Orientate the centers of a Master Pyraminx (Pyraminx 4x4)

I have a very strange state on my 4x4 Pyraminx. The green side is solved and the other sides are almost solved, the problem is, on these 3 remaining sides the centers are not solved. The state looks ...
1 vote
1 answer
111 views

Unknown PLL case

I'm learning CFOP's Permutation of the Last Layer Algorithms. This hasn't appeared in any PLL list I've seen so far. Really not sure how to search for this/what's the alg to finish the cube. To get to ...
  • 113
4 votes
2 answers
246 views

5×5 illegal parity - how could I move the centerpieces to fix it?

My cube was dropped (kids uugh) and only three center pieces fell out (red blue and yellow). I put them back where I thought they should be, and then solved the cube. The end result is this weird ...
5 votes
0 answers
111 views

Diagonal pattern for 4x4x4 Rubik Cube with all colors on each side?

I love creating patterns on my 4x4x4 cube, so I came up with the idea to create the following pattern: all sides have a diagonal pattern, meaning something like ...
  • 151
1 vote
1 answer
100 views

Solving 3x3 Rubik's cube with commutator [closed]

Is it possible to solve the 3x3 Rubik's with only the Y commutator. i.e. [F,R'] = FR'F'R
  • 11
2 votes
1 answer
132 views

How do I solve this 5x5 Rubik's cube? Two faces have the "inner ring" swapped, but the rest of the cube is completely solved

I was just fiddling with a previously solved 5x5 Rubik's cube, and when I attempted to revert it back to the solved state, it ended up with all but 2 faces solved. I can't remember the moves I did to ...
  • 23
2 votes
1 answer
283 views

Shortest algorithm to rotate 2 corners on a Rubik's Cube

I'm looking for the shortest algorithm to rotate 2 corners without rearranging any other pieces location or orientation. For example, turning the Top-Front-Right corner clockwise and the Top-Front-...
  • 59
2 votes
0 answers
159 views

Shortest Algorithm to flip 2 edges on a Rubik's cube

I'm looking for the shortest algorithm to flip 2 edges without rearranging any other pieces location or orientation. For example, flipping the Top-Front edge and the Top-Right edge. My current best is ...
  • 59
3 votes
1 answer
287 views

Is it possible to have 4 or 5 solid colored faces in an unsolved 2x2x2 Rubik’s cube?

My mother is trying to solve a 2x2x2 Rubik’s cube. Sometimes she can get one face solid colored. Sometimes two faces and even three faces. Is it possible that she could get 4 or 5 faces solid ...
1 vote
1 answer
119 views

Diversified Rubik's Cube [duplicate]

I have, cleverly I hope, shuffled my Rubik's Cube for a while. I could not find a position where, for each faces, all colors appear 3 times or less. I always had a or several faces with at least 4 of ...
  • 5,895
5 votes
4 answers
327 views

Are there any Rubik's cubers who can solve a cube to an arbitrary position?

By "solve to an arbitrary position" I mean something like I give you two scrambled cubes and you make one cube match the other. This question and its answers confirms that it's possible, but ...
  • 161
0 votes
2 answers
193 views

Is this Rubik's cube broken?

I am trying to solve the Rubik's cube in the picture using the layers' method. I used successfully the same algorithm on another cube, but somehow when I reach the last stage it just does not work. ...
0 votes
0 answers
85 views

Commutators in Rubik's cube

Can 4 corner be swapped at the same time with commutator in 3x3x3 Rubik's cube? Generally, swapping any three and than swapping last one will help, but is it possible to do it in shorter ways using ...
0 votes
0 answers
104 views

What does this B'z Rubik's Cube look like when solved?

What does this B'z Rubik's Cube look like when solved? Also, how should I "transform" it for my 7-year-old son in order to solve it using a Rubik's cube solver? Pictures below show all six ...
0 votes
0 answers
75 views

Disguising a Rubik's Cube rotation

I'm wondering if there's a way to disguise the total rotation of a Rubik's Cube? For example, if I wanted to rotate the (solved) cube I could obviously just apply a 90 degree yaw rotation. However, I ...
3 votes
1 answer
467 views

Top edges have incorrect color when following guide

I’m using an official Rubik's cube guide, but sometimes in the final stage, I get the following configuration that I cannot get rid of using only the algos in the guide: Top edges have different ...
  • 33
1 vote
1 answer
296 views

Flip 2 complete edges on 7x7

How can this 7x7 cube be fixed? The edges need to be flipped.
7 votes
3 answers
290 views

How many stickers can a Rubik's Cube lose?

I have an old Rubik's Cube, the kind with stickers. The stickers tend to fall off. That got me wondering: How many stickers can you remove from a Rubik's Cube at most, while preserving the property ...
  • 24k
2 votes
2 answers
156 views

On matching a scrambled 4x4x4 Rubik's cube

Has anyone tried to match a scrambled 4x4x4 cube? It's been a fun challenge that requires learning supercube-safe algs (especially for PLL), and I can succeed 99% of the time. Roughly 50% of the ...
2 votes
1 answer
576 views

7x7 Rubik - Solve sides with commuters and conjugates

I've been practicing to better understand and apply commuters and conjugates in big cubes. I've solved the majority of my 7x7 cube but got to a point where I have two side pieces flipped (so blue-...
1 vote
1 answer
138 views

Why do centers seem flipped from guide despite centers not moving in relation to each other?

I've been struggling with the first step of the beginner Rubik's cube solving algorithm with one simple problem. I am able to get the top face as all white, with blue and orange center pieces adjacent ...
  • 111
1 vote
1 answer
147 views

What is the maximum number of turns (not moves) needed to solve a Rubik's Cube?

This is more than the normally quoted 20 since the normal maximum solution counts a double turn as one move. If you consider that one move can either one or two turns then what is the maximum number ...
6 votes
3 answers
2k views

Adjusting wrongly assembled Rubik's Cube

I bought a new Rubik's Cube and was able to solve it with some tutorials. However, I made a wrong movement, so that one piece came out. I think, I put it wrong together, because I'm not able to solve ...
  • 63
26 votes
2 answers
3k views

How do I solve this cube?

I’m trying to learn the cube but I'm stuck. How can I solve this in the least number of moves? The answer is a phrase. Since it’s a secret phrase, an abbreviation will do.
  • 12.2k
2 votes
1 answer
378 views

Solving the peach rubik's cube

I've recently got hold of a peach rubik's cube, which has some interchangeable pices (corners and edges as far as I can make out), and also some edged whch seem to be reversable. Whatever I do, I seem ...
  • 123
5 votes
4 answers
469 views

Algorithm to make two scrambled Rubik's cubes be exactly the same on all faces

There are millions of Rubik's cube combinations possible. If I have two 3×3 Rubik's cubes and both are scrambled, I want to make one scrambled cube exactly the same as the other without solving them. ...
1 vote
2 answers
350 views

What is the name of this Rubik's Cube pattern where the two squares bordering a corner are switched cyclically around the faces touching that corner?

I know one that there was a similar one called "glitch". If possible, could you also provide notations/a video tutorial for making it as well.
2 votes
1 answer
109 views

What's the name of this Rubik's Cube pattern, where each face has a main diagonal and an L on either side in three different colors respectively?

This pattern looks really interesting, but all I can find on it is this one picture. If someone could also provide a video tutorial (if possible), because I don't really do well with notations.
6 votes
2 answers
245 views

Most polyominoes on a Rubik's cube

What is the most number of distinct free polyominoes you can form on the faces of a standard 3x3x3 Rubik's cube? Here a polyomino is considered as a set of orthogonally-adjacent cells of the same ...
2 votes
1 answer
98 views

Polyominoes on a Rubik's cube

Is it possible to obtain a tetromino and a pentomino of different colour on each face of a standard 3x3x3 Rubik's cube?
3 votes
2 answers
2k views

How to make a Rubik's Cube look like a die?

Is it possible to "solve" a Rubik's Cube (the original with 3x3 elements per side and six sides) to make it look like a die (each side showing a different die pattern from 1 to 6, opposite ...
  • 141
2 votes
1 answer
1k views

How to achieve a yellow cross on Rubik's cube from three yellow edges on the top layer?

I have finished the first and middle layers on a Rubik's cube and now I would like to complete the yellow cross on the third layer. Every instructions manual I have seen assures that there are one of ...
  • 123
1 vote
1 answer
476 views

Rubik's Cube: Corner stickers appear switched

My 8 year old son has a 3x3 Rubik's cube. He's had it for months and solved it many times. He has accidentally (or purposefully) flipped corners, but we've always been able to flip them back and ...
  • 113
2 votes
1 answer
174 views

Puzzle on a Rubik's Cube

The puzzle is as follows: Consider a solved Rubik's cube. Apply the move sequence M2 U M2 U2 M2 U M2 (Commonly known as the H-permutation in the cubing community). Is it possible to solve the cube ...
3 votes
1 answer
264 views

Mix a 2x2 Rubik’s cube

What is the minimum number of 1/4 turns of a solved 2x2 Rubik’s cube, such that no face will have two tiles of the same color? (I do not have this puzzle’s solution.)
  • 143
4 votes
1 answer
175 views

Is it possible to calculate group 3's factor of 3 in Thistlethwaite algorithm?

https://www.jaapsch.net/puzzles/thistle.htm I'm trying to generate 29400 ($8C4^2 * 6$) indices for each one of the cube states in G2. $8C4^2$ = 4900 is for solving the corner and edge pieces (forming ...
5 votes
1 answer
194 views

What is this 3x3x1 Rubik's cube with colored circles with colored borders?

My son got this from a friend: It seems to be some kind of 3x3x1 Rubik's cube. I am confused about the colours, however. It can be solved for the coloured rings, but not for the dots - I think. Does ...
  • 51
16 votes
3 answers
4k views

Barely Illegal Rubik's Cube State

(If you are not interested in the backstory, you can skip right to the picture.) At Most Complicated Illegal Partial State of Rubik’s Cube, user @happystar asks a very interesting question about ...
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7 votes
2 answers
523 views

Most Complicated Illegal Partial State of Rubik’s Cube

This puzzle is a follow-up for Does The Rubik’s Cube In This Painting Have A Solved State? What is the most complicated illegal “partial state” possible for a Rubik’s Cube? To be more specific: a ...
  • 6,633
61 votes
2 answers
7k views

Does the Rubik's Cube in this painting have a solved state?

This is an image of a Rubik's Cube I found in the Men's Toilets during the first day of a big Scrabble tournament. This position is impossible for the standard Rubik's Cube (White/Red/Blue opposite ...
  • 6,633
2 votes
2 answers
4k views

Rubik's Cube - How to swap 2 middle layer pieces, it can affect the top, but not the bottom

While solving with CFOP, I have the following situation. The bottom side is solved. On the front face, I have the left-center and right-center pieces swapped. How can I swap these pieces? I know ...
10 votes
2 answers
346 views

Communication via a Rubik's cube

I watched The Promised Neverland recently and after exploring a little, I found out that Norman used a 5x5x5 Rubik's cube (aka a professor's cube) to communicate when he was held at the $\Lambda\text{-...
2 votes
1 answer
174 views

Is it possible to solve the Cube in a Cube in a Cube in a Cube state using its own algorithm on a 4x4?

So, I got curious if I could solve from the cube in a cube in a cube in a cube position to the solved state just using its own algorithm. This is the one I was using: B' 2R2 2L2 U2 2R2 2L2 B F2 R U' ...
  • 121
4 votes
0 answers
290 views

God's number for 4x4 cube [closed]

The God's number for the 3x3 cube is already established and proven to be 20 moves. Is there any higher bound computed for the 4x4 fewest move bound, via brute force computation algorithms.
6 votes
2 answers
1k views

Name of Rubik's Cube position with swapped corners & centers

What is this Rubik's Cube setup called? I tried to swap the corners and centers of each side. Is there a name for this?
  • 265
7 votes
2 answers
655 views

1x1x1 Rubiks Cube Puzzle

The solved position of 1x1x1 Rubiks cubes as shown was shuffle rolled without moving outside the 4x4 puzzle grid. All cubes are similar with face opposite colors: red to magenta,green to yellow and ...
  • 6,606
3 votes
1 answer
726 views

How to fix swapped edges in a 5x5 rubik's cube

I have a 5x5 Rubik's Cube in a similar situation to this previous post - entirely solved, except for a pair of swapped edges: Swap the edges in a solved Rubik's cube. However, since it's a 5x5, it'...
  • 31
3 votes
0 answers
146 views

Designing a new type of twisty puzzle

Recently, I was fiddling with my Rubik's cube and tried scrambling it only using R and U moves. I then tried to solve it using only R and U moves. I didn't use any cube rotations. It was an ...
1 vote
0 answers
93 views

Two swapped edges [duplicate]

I have 4 solved sides and 2 swapped edges. For a visual example: yellow white, green and blue are solved, and the f2l for red and orange is done, as are the corners, but for red there is an orange ...
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