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A comment on The Mathematics of the Rubik’s Cube (2009) [pdf]. Parent comment
Rotating top side left one is the same as rotating bottom 2 sides right.
But, more generally limiting rotations to 90 degrees slows things down as 90 or 180 degree rotations can be directly computed with the same overhead.
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Rotating top side left one is the same as rotating bottom 2 sides right.
But, more generally limiting rotations to 90 degrees slows things down as 90 or 180 degree rotations can be directly computed with the same overhead.