Questions tagged [rubiks-cube]

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

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1answer
22 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 ...
5
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2answers
560 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 ...
21
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2answers
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.
2
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1answer
265 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 ...
5
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4answers
335 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. ...
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2answers
168 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
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1answer
80 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
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2answers
229 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
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1answer
79 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
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2answers
1k 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 ...
2
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1answer
289 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 ...
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1answer
210 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 ...
2
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1answer
139 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
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1answer
138 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.)
4
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1answer
150 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
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1answer
135 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 ...
16
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3answers
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 ...
8
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2answers
472 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 ...
60
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2answers
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 ...
2
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2answers
1k 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 ...
8
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0answers
195 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\...
2
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1answer
134 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' ...
4
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0answers
226 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
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2answers
970 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?
7
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2answers
634 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 ...
3
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1answer
397 views

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

First time poster - I'm sorry if this is answered somewhere else, but I couldn't find it. I have a 5x5 Rubik's Cube in a similar situation to this previous post - entirely solved, except for a pair of ...
3
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0answers
122 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 ...
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0answers
74 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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0answers
55 views

is this 4x4 cube solvable? [duplicate]

Everything is in position except these two corners, but I can't seem to find a solution.
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1answer
392 views

How do I solve Ancient 3x3 Irregular Magic Cube

I recently bought this cube. Currently, it is jumbled. How do I solve it?
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0answers
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: "...
4
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1answer
214 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 ...
5
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1answer
187 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
2
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1answer
454 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. ...
18
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1answer
328 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). ...
6
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1answer
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 ...
5
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2answers
283 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 ...
7
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3answers
280 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 ...
1
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1answer
84 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)?
12
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1answer
1k views

Rubik's Cube Photo Review

Recently, I saw this motivational picture (Clicky to embiggen): (source) Since I found the message somewhat confusing, I searched Google for more similar images. Can you tell what do all these ...
4
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2answers
881 views

Oriented Rubiks Cube 4x4 re-arrange center pieces

There are a lot solutions for oriented 3x3. They rotate all center pieces. I'm trying to solve oriented 4x4 with GabbasSoft Cube Demo. Luckily blue and green ...
9
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1answer
320 views

A rubik's cube that fights back

After the incidents of Skyfall, 007 remembered a quote Q had said when he was accessing Silva's Omega site : It's like solving a Rubiks cube that's fighting back. 007, intrigued by this statement, ...
6
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2answers
566 views

Do stickerless cubes provide speedsolvers with an advantage?

In July 2015 the World Cube Association changed their regulations to allow the use of stickerless puzzles in speed solving. I'm curious whether or not that event changed the sport somehow. Are some ...
5
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2answers
299 views

Multiple solutions for Rubik's cube?

I got a novelty cube at as swag at a convention once; it was like a normal cube, but with slogans written on the squares of the cube. If you solved the cube, you could read the slogan. This got me ...
16
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1answer
484 views

On The Subject of Rubik's Cube

(This is part of a series of puzzles written for Timwi for a Secret Santa puzzle exchange, themed around various custom modules for the game Keep Talking and Nobody Explodes. No KTaNE knowledge is ...
3
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1answer
149 views

Reapply *some* stickers on scrambled cube

I have this weird cube which have some pieces printed on the plastic and some are detachable. The cube was scrambled not solved and it fell on the floor being cheap cube almost all detachable faces ...
2
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1answer
174 views

Looking for an old Rubiks cube algorithm

I learnt rubiks cube before the YouTube days from a blog. I do not find the algorithm anymore online but it is something like White cross White corners (except one) Second layer corners (except one) ...
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1answer
156 views

Bad white face after white cross in rubik's cube

I have observed while making white face after white cross, if one of the white corner which is faced such that it's white face is towards the white cross, but the corner is corner is in wrong position,...
3
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1answer
360 views

Can I swap two "yellow" corners on the same side?

The bottom two layers are solved, and the cross has been formed on the bottom layer. I am putting the corners in, ready to orientate them correctly, but I have two corners which need swapping. (The ...
1
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1answer
71 views

Flip edge in Equator layer but there is yellow in every edge in top layer

A way to solve this is to replace the flipped edge by a random block , but in my case all random block have yellow color, so if I swap than yellow will come in middle layer, which should not come ...

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