Super Cube

[Karthik]

I tried solving the 3x3 super cube on Gabbasoft today.I am actually happy with my first trials today.Well every time I solved it,I ended up with misoriented centres.
So to fix a centre of the top layer which is mis oriented by 180 degrees,I made this move
(RUR'URU2R'U2)x3 which is nothing but a Sune followed by U2 done three times.
Does anybody know better ways fixing the centres/solving the super cube??
Also what about the algs for other cases of mis-orientated centres??

 

[joey]

You can also do the T perm twice for that case.

Also try out M E' M' U M E M' U'

 

[Jason Baum]

This alg rotates the U center 180?:

U R L U2 R' L' U R L U2 R' L'

 

[AvGalen]

I just use an edge-3-cycle turns the U center 180 degrees (F2 U LR' F2 L'R U F2) and do that 3 times.

The advantage is that I understand why this works

Is there a website that has "super-cube" algs? I am especially interested in those for 4x4x4.

 

[Karthik]

What about centre rotations by 90 degrees??
Does anyone have any idea??

 

[Jack]

Let's say that the right center need to go 90 degrees clockwise and the up center needs to turn 90 degrees counterclockwise. I think that you would do R U' (R because right needs to go clockwise and U' because up needs to go counterclockwise), and you would repeat R U' until it is solved, which is quite a long time. This can be saved by just trying to orient them while solving.

 

[Karthik]

How to preserve the orientation while solving???How do you do it?

 

[AvGalen]

You can preserve rotation (not orientation) by
1) Setting rotation correctly during cross
2) Use "pretty algs" that use the same amount of A as A' moves. (R' U' R' U' R' U R U R changes rotation on the R-face, but R U R' U' F' U' F U doesn't change the rotation)

For 90 degree turns you can use edge-3-cycles that turn the R center 90 degrees (R U' R U R U R U' R' U' R2) and then use edge-3-cycles that don't change rotation (except for U-rotation: (F2 U LR' F2 L'R U F2)

 

[Johannes91]

Originally posted by AvGalen@Jul 7 2007, 10:50 AM
rotation (not orientation)

Why not?

You can use simple commutators to orient centers: [M' U M, E] etc.

 

[Jack]

When you are solving, it does not take a lot of extra time to rotate the centers correctly. When you solve the cross, make sure that the center is rotated right before you start, and what I usually do is put in 3 edges, then use the open space to rotate all of the centers in the E ring correctly before putting in the fourth. Then the corner edge pairs do not mess up any of the of the centers. The only problem is that a bunch of my LL algs mess up a few of the centers, in which case you would probably rotate them back using algs, or commutators as Johannes91 said.

 

[AvGalen]

Why not?

You can use simple commutators to orient centers: [M' U M, E] etc.

Johannes91: A center only has 1 orientation, so it is always oriented correct. Rotation seems to be a better word. This is all semantics off course.