Topic: General Rubik's Cube revisited

(link)

12:47pm, Monday 4 January 2016

I was given a Void Cube for Christmas. It's like a Rubik's Cube with holes through the middle, and looks like it should fall apart. The missing/unmarked centre pieces do still matter, and in fact make the puzzle harder, because it's possible to (try to) solve the cube around the "wrong" centre pieces - which is impossible in some positionings.

In the notation from my earlier cube notes, the sequence to put this right - by swapping the front-top and right-top edges - is:
ram to ram ta rom ta rom ti ram ta

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Dave Holland <dave@biff.org.uk>
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