Wednesday, January 27, 2016

[kmidyort] Pocket Cube matched pair

In a random scramble of a 2x2 Rubik's cube, what is the probability of at least one pair of correct cubies, i.e., matching adjacent colors?  The probability of having a matched pair of a given color?  If you are getting such solved pairs too frequently in the initial scramble, you aren't scrambling well enough.

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