Questions tagged [rubiks-cube]

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

Filter by
Sorted by
Tagged with
6 votes
3 answers
238 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 ...
user avatar
  • 161
0 votes
2 answers
135 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. ...
user avatar
0 votes
0 answers
72 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 ...
user avatar
0 votes
0 answers
99 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 ...
user avatar
0 votes
0 answers
71 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 ...
user avatar
3 votes
1 answer
139 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 ...
user avatar
  • 33
1 vote
1 answer
131 views

Flip 2 complete edges on 7x7

How can this 7x7 cube be fixed? The edges need to be flipped.
user avatar
7 votes
3 answers
268 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 ...
user avatar
  • 20.1k
2 votes
2 answers
134 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 ...
user avatar
2 votes
1 answer
373 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-...
user avatar
1 vote
1 answer
100 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 ...
user avatar
  • 111
1 vote
1 answer
116 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 ...
user avatar
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 ...
user avatar
  • 63
24 votes
2 answers
2k 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.
user avatar
  • 7,189
2 votes
1 answer
334 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 ...
user avatar
  • 123
5 votes
4 answers
396 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. ...
user avatar
1 vote
2 answers
239 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.
user avatar
2 votes
1 answer
92 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.
user avatar
6 votes
2 answers
244 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 ...
user avatar
2 votes
1 answer
91 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?
user avatar
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 ...
user avatar
  • 141
2 votes
1 answer
670 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 ...
user avatar
  • 123
1 vote
1 answer
316 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 ...
user avatar
  • 113
2 votes
1 answer
157 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 ...
user avatar
3 votes
1 answer
220 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.)
user avatar
  • 143
4 votes
1 answer
168 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 ...
user avatar
5 votes
1 answer
160 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 ...
user avatar
  • 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 ...
user avatar
  • 69k
7 votes
2 answers
503 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 ...
user avatar
  • 6,569
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 ...
user avatar
  • 6,569
2 votes
2 answers
2k 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 ...
user avatar
8 votes
0 answers
209 views

Communication via a Rubik's cube

So, 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\...
user avatar
2 votes
1 answer
145 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' ...
user avatar
  • 121
4 votes
0 answers
252 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.
user avatar
6 votes
2 answers
984 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?
user avatar
  • 265
7 votes
2 answers
645 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 ...
user avatar
  • 6,596
3 votes
1 answer
588 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'...
user avatar
  • 31
3 votes
0 answers
138 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 ...
user avatar
1 vote
0 answers
82 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 ...
user avatar
  • 11
2 votes
0 answers
56 views

is this 4x4 cube solvable? [duplicate]

Everything is in position except these two corners, but I can't seem to find a solution.
user avatar
  • 121
1 vote
1 answer
428 views

How do I solve Ancient 3x3 Irregular Magic Cube

I recently bought this cube. Currently, it is jumbled. How do I solve it?
user avatar
23 votes
0 answers
2k views

CSE Hex Cube Puzzle

I've been tackling this puzzle named "Hex Cube" from the CSE (Communications Security Establishment, the Canadian "equivalent" of the NSA) which comes with the instructions: "...
user avatar
  • 181
4 votes
1 answer
241 views

Way to calculate the total tetrad twist of a rubik's cube

I am working on an implementation of Thistlewaite's algorithm to solve a Rubik's cube and I am now facing the problem of tetrad twists. Thanks to this answer, I understand what they are and how they ...
user avatar
  • 43
5 votes
1 answer
205 views

Rubik's Revenge: Double Parity

How do I solve this double parity? Can both be solved at once OR need to solve center parity first and then corner parity or vice versa
user avatar
  • 265
2 votes
1 answer
960 views

Last layer, rotate 3 edges

Up until a few months ago I was happily solving my 4x4x4 cube, then, thanks to a medical thing, I've lost/forgotten a few algorithms. I've got all of them back except 1, rotating the last 3 edges. ...
user avatar
  • 123
18 votes
1 answer
351 views

Can you solve this Rubik's cube from inside of it?

You have woken up to find yourself trapped in what appears to be a giant Rubik's cube. A Rubik's Cage I suppose. Bewildered, you take a look around (better video on imgur or just click the photo). ...
user avatar
6 votes
1 answer
3k views

Mathematical Proof of a Rubik’s Cube

Has it been proven (or disproven) that, from a solved state, there exists a number “x” for any algorithm, such that you can perform said algorithm x times to get back to a solved state. I feel like ...
user avatar
5 votes
2 answers
350 views

4x4x4 Error with single centre orientation

I have 4x4x4 with a pattern. It is possible to get a situation where one centre block needs to be rotated 90 degrees. I have seen only 2 other cases online, but neither have documented a concrete ...
user avatar
  • 153
7 votes
3 answers
285 views

Rubik's M Slice Using Thumb

I've been cubing for a couple of years now, so I'm quite familiar with all the various finger tricks and different ways to move faces and slices. Most of the ones I came up with when I started were ...
user avatar
  • 121
1 vote
1 answer
118 views

Algorithm for swapping all cube edges or corners cyclically (PLL)

What's the algorithm for this PLL case? In order words how can I swap the edges (or corners) in a cyclical way (like A or U perm, but with all edges or corners)?
user avatar
  • 113

1
2 3 4 5 6