Questions tagged [rubiks-cube]

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

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5
votes
1answer
499 views

Rubiks cube Old Pochman method

I am trying to get a successful blindsolve using the Old Pochman method. I got my cubed scrambled, and I have no idea what to do with memorization when: I need to shoot to a corner that has the ...
7
votes
1answer
1k views

Is there a Rubik's scramble generator for the top layer only?

I want to practice solving the last layer, but the online scramblers I've seen are full cube only. Is there a Rubik's scramble generator for the top layer only?
-5
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1answer
872 views

One Edge Piece Faced The Wrong Way [closed]

What is the minimum number of turns needed to solve a rubik's cube with one edge piece faced the wrong way on the 3rd layer? Example
4
votes
1answer
754 views

How to “pop one out” on a Rubik's Cube?

I am trying to follow this tutorial for solving a Rubik's Cube: https://ruwix.com/the-rubiks-cube/how-to-solve-the-rubiks-cube-beginners-method/. Step two says, among other things: If the white ...
8
votes
2answers
1k views

How do I become a sub-15 cuber?

Right now, I can solve a Rubik's Cube with an average of 17 - 20 seconds. Sometimes, I may get 15 or 16 second and my record is 12. I am currently using the Fridrich method and below is how long I ...
21
votes
1answer
4k views

Will tiles on a solved rubik's cube always be in the same position?

When a rubik's cube is solved, will the tiles always be in the same position? For example, if you were to write the number 1-9 on one of the sides before scrambling it, will the numbers always be in ...
30
votes
2answers
1k views

Rubik's Chess Puzzle

This puzzle is part of the Fortnightly Topic Challenge - "Unconventional Tag Fusion". Last week I found out that Puzzle Prime Co. have invented new type of puzzle - Rubik's Chess. The goal is simple -...
7
votes
1answer
466 views

Magnetic Rubik's cube

Forming a 2x2x1 puzzle block, four 1x1x1 Rubik's cubes were modified to attach with one another in many ways by means of magnets and steel discs. Assemble them first so that all sides are showing the ...
2
votes
2answers
388 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 ...
14
votes
4answers
2k views

Where is my girlfriend?

Well, I'm really, really sorry to everyone who has spent time trying to tackle this puzzle. I made a HUGE mistake in the presentation. I honestly don't know how I managed to make a mistake this big, ...
13
votes
1answer
505 views

Rubic cube's face into date

Solve this rubic cube's face into date For puzzle masters who can not see pictures / color blind ...
2
votes
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-...
5
votes
1answer
487 views

Is there some oil, grease, or substance I can find at home or in the garage or office to lubricate a speed cube?

I'm backpacking around Asia randomly so I won't be ordering anything online. But my speedcube has started to get a bit sticky and I'd like to lube it. So what are some easy to get alternatives to ...
3
votes
1answer
221 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 ...
9
votes
1answer
4k views

What's wrong with this parity?

Here you see my Rubik's $10\times10\times10$ I don't know how to solve this using an algorithm, also the same thing happens to my $6\times6\times6$. What algorithm should I use? (The whole cube is ...
4
votes
1answer
339 views

What are the minimum OCLL/PLL with ZZ method

I've seen on many sites the information that the LL on ZZ need a minimum of 6 OCLL and 14 PLL. But since the OCLL totals 7, and the PLL totals 21, I don't know which ones are "missing". Is it the ...
10
votes
3answers
4k views

How do I memorize parity algorithms for higher-order Rubik's cubes?

I know how to solve a Rubik $4\times4\times4$ or $5\times5\times5$ or bigger, but I have problem with a specific algorithm: the parity error. What's the shortest parity algorithm for $n\times n\times ...
2
votes
2answers
491 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?
0
votes
1answer
2k views

swap two adjacent edge pieces of a white face

Could anyone show me how to swap two adjacent edge pieces of a white face so that the U face is fully aligned? the configuration (real) is as follows:
1
vote
1answer
33k 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 ...
4
votes
1answer
295 views

Welcome to Cubing

After the critical feedback on the previous question, here is the new question... It so happened that one day, your nephew came to you and said that he wanted you to play a board game with you. You ...
24
votes
8answers
5k views

How many cubes can we fit in?

You have a bag with many 3x3 Rubik's cubes . After solving all but one of them, you decide to play a new game. You take the unsolved cube, and start placing solved ones around it. The question: What ...
5
votes
5answers
1k views

What's the minimum number of sequences required to be learn to solve Rubik's cube in under half an hour?

I'm not asking for minimum moves. I know it's 20. I also know that it can be solved using only 1 sufficiently long sequence, but that would take ages to perform and it'd be nearly impossible to ...
4
votes
1answer
31k views

Rubik's cube with one disoriented corner [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 corner ...
12
votes
3answers
7k views

Rubik's cube without any algorithms

I am learning to solve a Rubik's cube using some algorithms (I don't completely understand why they work). I had a Rubik's cube when I was little and I remember solving it 2-3 times without using any ...
9
votes
3answers
598 views

Turn 4x4x4 Rubik's Cube into 2x2x2 Rubik's Cube

Idea shamelessly stolen from this question. I have a 4x4x4 Rubik's Cube, but all I want is a 2x2x2 Rubik's Cube. Luckily, I also have an unlimited supply of small pieces of tape. Each piece of tape ...
10
votes
2answers
2k views

3x3x3 Rubik's Cube Illegal State

After I learned how to solve a 3x3 Rubik's Cube and a 4x4 Rubik's Revenge, I began challenging myself to solve the cubes to different states rather than the normal solid sides. For instance, I'd solve ...
38
votes
4answers
3k views

Turn 4x4x4 Rubik's Cube into 3x3x3 Rubik's Cube

I have a 4x4x4 Rubik's Cube, but all I want is a normal 3x3x3 Rubik's Cube. Luckily, I also have an unlimited supply of small pieces of tape. Each piece of tape can cover the face of two neighbouring ...
0
votes
5answers
693 views

One Hundred Prisoners and a Rubik's Cube

Say there are 100 perfectly intelligent prisoners (who don't have incredibly good memories) who are jailed for life (and also live eternally). The warden decides to play a game with them. There is a ...
6
votes
2answers
707 views

Can a Rubik's cube be put in a position not solvable by Fridrich's algorithm?

I think today I have faced a bug on rubik's cube. As it should be, I followed the steps Cross and then F2L, instead of OLL algorithms, I used R'FRF' and three corner swapping moves to complete last ...
4
votes
3answers
780 views

A simple solution for two awkwardly formed corners, is needed

I have been started to learn how to solve rubiks cube with Philip Marshall's ultimate solution. With this algorithm, I can easily solve cage and 6/8 corners, but however two corners comes up in an ...
1
vote
0answers
120 views

Rubik's Cube Master Algorithm [duplicate]

I've been thinking about this question for a while, but I have no idea how to approach it. I don't know what the answer is. The question: What is the shortest finite set of moves that, when repeated,...
4
votes
2answers
5k views

Best cubing algorithm to learn after beginner's

I'm a new fan of cubing. I've recently bought a speed cube and for now I have only mastered the beginner's method and solve it in barely a minute and a half (which is way over what a speedcuber is ...
3
votes
1answer
422 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 ...
5
votes
1answer
137 views

What (if any) is the maximum possible number of pieces ina Rubik's cube?

What (if any) is the maximum possible number of pieces in a Rubik's cube---27? 64? 125? 216? 343?...or does the maximum end with 125?
0
votes
2answers
299 views

Easy ways to solve

I learned how to solve a rubik's cube this summer. On my first try (after memorizing all the algorithms) I got a sub-50. Now, my personal best is 31 seconds. I tried learning the Fridrich method but I ...
3
votes
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 ...
6
votes
1answer
235 views

Another closed path on the Rubik's cube

Is it possible to draw a closed path on the surface of a standard $3\times3\times3$ Rubik's cube such that the path traverses exactly one diagonal of each of the $54$ little squares, and such that ...
9
votes
6answers
1k views

A closed path on the Rubik's cube

Is it possible to draw a closed path on the surface of a standard $3\times3\times3$ Rubik's cube such that the path traverses each of the $54$ little squares exactly once, and such that the path ...
0
votes
1answer
957 views

3rd layer dilemma

i've followed the beginner's method, i've got the superior facet correct, the 1st and the 2nd layer correct. But in the third layer i always invert the colors but only got one corner right as shown in ...
-4
votes
2answers
295 views

how to resolve this 3*3 cube

I've followed the beginner's Rubik's cube solving method and I've arrived at this: So as you can see, I've succeeded mounting the first layer but within the second one there's a problem with the ...
6
votes
1answer
202 views

Minimum number of stickers to inspect in a Rubik cube to define a scrambled position?

This is for a robotics solver using a real cube. How many facelets must the machine check to figure out the position of everything in a scrambled cube?
6
votes
3answers
4k views

What is the superflip on the 4x4x4 Rubik's cube?

The superflip is the state on a rubik's cube that require the most amount of moves to be solved. This is how it looks like: This state requires 20 moves (where half-turns counts as one move) to be ...
6
votes
2answers
1k views

rubik's cube inside a rubik's cube

Once I completed solving Rubik's cube, a different pattern came into my mind. It was- A B B A B B A C C Here, same letters represent same colors. So is it ...
8
votes
3answers
532 views

Separating the Pieces of a Rubiks Cube

I recall coming across this problem in one of my classes senior year of high school. (We only did the first part). Easy (and probably somewhere on the internet) Taking a standard 3x3x3 Rubik's ...
12
votes
2answers
2k views

How many solvable permutations of the Rubik's cube exist where each color appears at least once on every side?

Every now and then, scrambling my Rubik's cube I find it in a state where every side has at least one tile in each of the six colors. For example here's a scramble I just did (obviously put through a ...
2
votes
1answer
784 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 ...
11
votes
3answers
36k views

What is the Official notation on rubik's revenge(4x4)?

When solving a 4x4 cube you have specific notation to inner and outer lines, like R = Clockwise outer right and r = Clockwise ...
6
votes
3answers
26k views

Solving Rubik's cube with one algorithm [duplicate]

I was wondering if it's possible to solve a Rubik's cube just iterating a single algorithm. It doesn't matter how complex the algorithm is (as long as it is less than 1 million moves), nor the time ...
2
votes
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 "...