BN wrote:

bmenrigh wrote:

If you want to twist two centers by 90 degrees each, there is a simple [3,1] commutator:

[[R'&2:U'&2],U]

I'm having trouble figuring out what exactly that means. Could you write it out in normal notation?

In Gelatinbrain notation R&2 is the slice between L and R turned clockwise as R turns.

R'&2 is the same slice turned anti clockwise.

Correspondingly U&2 is the inner slice below U.

In former WCA notation (2010) R'&2 is equal to M (M is the slice under L turned into the same direction as L and

U'&2 = E (E is in WCA notation the slice above D turned as D turns.

So this [[R'&2:U'&2],U] translates to [[M:D],U] which is the commutator / conjugate notation of

the eight moves M D M' U M D' M' U'

If you use the former WCA notation for Big Cubes slices you would write r' u' r U r' u r U'.

EDIT: In WCA notation 2013 it would become Rw' R Uw' U Rw R' U Rw' R Uw U' Rw R' U'

If I use brackets for slice moves it becomes (Rw' R) (Uw' U) (Rw R)' U (Rw' R) (Uw U') (Rw R') U'

When I wanted to respond to BN's question yesterday, I wanted to quote the WCA notation. I found that simple slice moves do no longer exist and wrote about this

here.

Honestly, I hope that WCA will change this back!!!