(r U r’ U) (R U’ R’) M’ U (R U2 r’)
setup: (r U r’) (R U R’ U’) (R U R’ U’) (r U’ r’)
Three posts for all of 2015. That was it. Three. That wasn’t some fancy Rule of Three dramatic device. Not at all. Just. Plain. Busy. There were months at a time that I didn’t even pick up a cube, let alone post. But never fear: In the infamous* words of John Hartford, I’m still here.
* by which I mean neither the Three Amigos’ “more than famous” nor the literal “well known for some bad quality or deed,” but rather “not really famous at all.”
This one relates to OLL 56, one of the bar or I-shaped OLLs. As I learn the full set of bar OLLs this emerged as one where the standard alg —
(r U r') U (R U' R') U (R U' R') (r U' r') — could be improved by an M-slice. Yes, I’m a self-proclaimed M- and S-slice evangelist. And, yes, I’ll admit that sometimes using the middle slices is more neat and clever than ultimately useful. (The S-slice alg for F2L edge flip probably should be Exhibit 1.) But OLL 56 really does get easier with an M slice dropped in. Here’s a video showing the execution at full-speed and in slomo:
It may not be for everyone, but it’s much easier for me. Full bar OLL tutorial coming soon….