Re: Rubik's cube - rotation of the centres

Tim Woodall wrote:
I've acquired a Rubik's cube which is standard except for one quirk -
some of the squares (including all the centre squares) have writing on
them. This means that five of the six centres only have one correct
rotation. The sixth one (red) is on an otherwise blank face so when
looking at just that face you cannot tell which way around the centre
should be.

This brought back memories when I first encountered the Cube in 1980. After playing for a few months, I needed a bit more challenge, so I cut one corner off each of the stickers. That made the orientation matter for each cublets, which was essentially the same as what you had. (The Cube is now collecting dust on the shelf)

I got this cube in a mixed up state.

I've now completed the cube and also worked out how to rotate the
centres. (X-1U1X1Z-1X-1U-1X1Z1 will rotate the right centre -90 and
the front centre +90[1])

I actually took a different approach. I solved the first two layers by putting the cublets in the right position and orientation. As for the last layer, I'd put the center in the right orientation and move the corner cublets around. I used to get pretty good speed out of it.
.

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