PLL edge cycles (U Perm)

Over the past couple months, I’ve tried to exorcise all remnants of the Beginner’s Method. F2L replaced the corner-first/edge-next approach a while ago, and several OLLs have made top-layer orientation a (generally) single-algorithm affair. But my PLLs were still a bit all over the place. I got to the two-look stage pretty easily (with no illusions about being able to one-look it for a while still), but realized that I was still using the Beginner’s Method algorithm for edge cycling — to wit, F2 U(’) R’ L F2 R L’ U(’) F2. Although I got freakishly quick at that algorithm, it required all sorts of awkward hand movements and lent itself to no finger tricks.

Since almost every one of my solves requires an edge cycle — with H and Z perms or the rare PLL skip as the lone exceptions — this bull-in-a-china-shop algorithm had to go. Enter the U perm:

U Perm (Edge Cycle)
COUNTER-CLOCKWISE (Ua)
(R U’ R U) (R U) (R U’) (R’ U’ R2)
CLOCKWISE (Ub)
(R2 U) (R U R’ U’) (R’ U’) (R’ U R’)

It took me about a week to get the algorithms down. As this video shows, the Ua iteration is perhaps my fastest and smoothest algorithm. There are a few Ub perms burried in there; they are fast, but a tad bit choppier.

At the risk of appearing to brag, the slo-mo Ub then Ua at the end shows a facility with finger tricks that I never thought achievable. The Beatles’ “Getting Better” soundtrack is meant as caricature, not boasting.

I’m a few days into the A perm for corner cycling. I’ll post a video about that next weekend, marking the final jettisoning of all things Beginner’s.

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9 thoughts on “PLL edge cycles (U Perm)

  1. Pingback: PLL corner cycles (A Perm) « adventures in cubing

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  3. Pingback: U Perms Revisited | adventures in cubing

  4. gewinnste

    If you do the beginner method with M turns instead of L + R shenannigans then it’s only 7 moves instead oft your 11.

    Reply
      1. gewinnste

        Totally agree – but if it’s 7 instead of 11 moves, it’s beyond a break-even point I think. At least in this case, since the the UR-alg. here has a lot of regrips.

      2. gewinnste

        Ok, I take it all back. I was as wrong as I could have been, sorry.
        You’re exactly right with what you said.

        I switched to the 2 gen U perms and even though the U(b) is still a bit awkward, I love the U(a). It’s my fastest PLL now.

        What I do still have trouble with is recog of A perms, execution is ok.

      3. Adventures in Cubing Post author

        Those 2-gen U perms are great for bigger cubes. I use them on a 4×4 regularly. I agree: Ua is fast and Ub is awkward. I still like my M slice U perms!

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