Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results for rubik cube
Search options not deleted
15 votes
0 answers
554 views

Geometric (smooth) Rubik's cube

There's a natural but nontrivial way to construct a finite subgroup of $G$: to think real Rubik's cube type puzzles. … along the axis of the cube. …
Seewoo Lee's user avatar
  • 2,215
8 votes
3 answers
689 views

partly obscured Rubik's cube

I just came back from a beach which features a large Rubik's cube (2m high). The base of the cube is not visible and the top is not coloured. … I was idly wondering: how can I tell if the patterns appearing on those four sides are actually possible for a real cube? …
Brendan McKay's user avatar
21 votes
1 answer
817 views

Who wins the Rubik's cube game?

The cube is forbidden from ever repeating a position (besides the start position). This guarantees the game is finite. … An example game would be F,F;F,F (using basic rubik's cube notation). Solver wins this game. …
Christopher King's user avatar
8 votes
2 answers
1k views

Schreier-Sims algorithm for solving Rubik's cube

However, it seems that there is not a complete, comprehensive algorithm that uses the Schreier-Sims method to solve the Rubik's Cube. … Is there any simple introduction of using the Schreier-Sims method to solve the Rubik's Cube? …
Marks's user avatar
  • 83
8 votes
1 answer
1k views

Higher dimensional Rubik's cube group

Is the group of the $3\times 3\times 3 \times 3$ cube a subgroup of a wreath product of another wreath product? In case you don't know about the $3\times 3\times 3$ cube. …
Jason Pioneer's user avatar
29 votes
1 answer
4k views

A Presentation for Rubik's cube group?

Let $G$ be Rubik's cube group. It is generated by the rotations by 90 degrees $L,R,D,U,F,B$ (left, right, down, up, front, behind), but what relations beyond $L^4=R^4=...=B^4=1$ do they satisfy? … From "The Mathematics of Rubik's cube" by W. D. Joyner I know that $G$ is generated by two elements and presentations are known, but I have not found one. …
Martin Brandenburg's user avatar
0 votes
1 answer
284 views

How many combinations of magic square on a white Rubik's cube?

A white Rubik's cube has 6 sides. There are 9 spaces on each side for numbers from 1 to 9, without color. … If we fill each side of a white Rubik's cube with a magic square, how many combinations can be filled on this Rubik's Cube? …
Chuck Liu's user avatar
14 votes
3 answers
9k views

Solving a Rubik's cube via a series of randomly selected (quarter-turn) Singmaster moves

be solved in at most 20 Singmaster moves (under the face-turn metric) from Rubik's Cube move group $(G, *)$, where $*$ is the concatenation operation (summarized here: https://en.wikipedia.org/wiki/Rubik … $n \times n \times n$ cube). …
FloatingForest's user avatar
3 votes
0 answers
176 views

A toroidal version of Rubik's cube: how many shuffles?

Hence an equi-$n$-square becomes an object with $n^2$ colored faces that may remind one of the Rubik's cube. … In contrast, Rubik's cube can always be solved with at most $20$ "moves". The lower bound in result 2 is: $4$ shuffles. Hence sharpness of results 2 and 3 is an issue: Question 2. …
Marcel Van de Vel's user avatar
12 votes
0 answers
546 views

God's number for higher dimensional Rubik's cubes

Here, God's number $g(n)$ was defined as the smallest number $m$ such that every realizable arrangement of the $n \times n \times n$-cube can be solved within $m$ moves. … Define $g_{k}(n)$ as the smallest number $l$ such that every realizable arrangement of the $n^{k}$-cube can be solved within $l$ moves. Whereas Mr. …
Max Lonysa Muller's user avatar
5 votes
0 answers
208 views

(How) does the spectral gap of the $n\times n$ Rubik's cube close with $n$?

This gap controls the mixing properties of the cube - i.e., how fast the cube can be scrambled. A larger gap may correspond to a faster mixing. … In both the QMBS problems and the Rubik's cube, finding the gap as $n$ go off to infinity corresponds to finding the thermodynamic limit. …
Mark S's user avatar
  • 2,185
8 votes
1 answer
1k views

GAP cannot solve Rubik's cube 4x4x4 and higher ? (Practical limits of Schreier–Sims algorithm)

According to our practical experiments and literature search - computer algebra system GAP cannot "solve" Rubik's cube 4x4x4 and higher. … PS Here is an example from GAP tutorial to handle the standard 3x3x3 Rubik's cube: https://www.math.rwth-aachen.de/homes/GAP/WWW2/Doc/Examples/rubik.html …
Alexander Chervov's user avatar
1 vote
0 answers
166 views

Random walk on N-Rubik cube group is going like sqrt(number of moves) or linear (number of m...

Consider higher (NxNxN) Rubik's cube group, with specific set of generators described below. What is important - that there are huge COMMUTING subsets of generators. … The diameter for N-Rubik cube group seems still to be unknown. And that open problem seems which might be tackled by AI methods (to some extent), moreover it can be seen like "toy-model". …
Alexander Chervov's user avatar
1 vote
0 answers
339 views

Counting the number of Rubik's cube states in which k = 0 to 4 of the faces are "solved"

Imagine an $n \times n \times n$ Rubik's cube, where we can transition the state of the cube using Singmaster moves under either the face- or quarter-turn metrics. … How many total cube states are there when $k = {0, 1, 2, 3, 4}$ of the cube faces are solved, and what "distribution" are these states drawn from? …
FloatingForest's user avatar
6 votes
0 answers
150 views

Who wins the Scrambler-Solver game for infinitary Rubik's cubes?

cube by a (possibly infinite) sequence of twists (without the Solver watching), presents the scrambled cube to the Solver, and the Solver attempts to unscramble it by a sequence of twists. … The cube Let $L$ be a linear order with no greatest element, write its reverse as $-L$. …
Jack Edward Tisdell's user avatar

1
2 3 4 5 6
15 30 50 per page