Questions on the mathematics behind the famed toy invented by Ernő Rubik.
Questions tagged [rubiks-cube]
237 questions
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Rubik's cube as $2\times2\times2$ or $2\times2$?
I'm surprised why people call a Rubik's cube as $2 \times2\times2$ or $3\times3\times3$? It's a CUBE!
Isn't saying $2\times2$ or $3\times3$ cube (or rather just $2$ or $3$) sufficient?
Jaskirat
- 29
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How can I swap opposite corners on the same face of a 2x2 Rubik's cube?
I've been experimenting with using Y-permutations to solve the 2x2 cube as described here. I ended up with the cube solved but for a single face where the opposite corners were swapped and disoriented. I managed to solve the cube, but I wonder if…
MathAdam
- 3,309
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How to create a Rubik's cube type of puzzle that is infeasible to solve?
Is it possible to create a mechanical puzzle, something like the Rubik's cube, that is infeasible to solve in general, but still demonstrably solvable if one knows the scrambling moves.
By "infeasible to solve", we mean that there is no general…
Frans Lundberg
- 153
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how to evaluate combinations of different configurarations of a rubik's cube
how to calculate the total combination number of an rubik's cube ?
and what is the number of combination if we fix one face of it with all matched colours , specifically saying blue one ,??
no. of combination of two adjacent faces , say blue and…
Priyadarshi Paul
- 237
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Rubik's cube computing algorithm
Is it possible to solve a 3x3 Rubik's cube using a tree similar to a 'mini-max game tree' (listing all possible unique moves, then listing further moves from this and so on), or is the sample space too large, given that most combinations require…
ghosts_in_the_code
- 2,022