Adrian Currier
Member
For those not familiar with ZZ method, it involves fixing edges at the outset so that LL edges are oriented upon completion of F2L. This cuts down OLL cases from 57 to 7.
There are many variants on ZZ and one variant on uses phasing (ZZ-b), which permutes 2 or 4 LL edges upon insertion of the last block pair in F2L (phasing is as quick and intuitive as F2L). It's meant to reduce 1LLL cases (1 look last layer), but I've proposed using it for 2LLL to reduce PLL cases to as few as 4 compared to 21 (with 1 alg needed to swap opposite edges in some cases to finish phasing) or 9 compared to 21.
Its benefit is in building on beginner CFOP and reducing 2LLL memorization (I'm maining it for both of these reasons). The only downside is that it requires learning 4 new OLLs (of the 7 OLL cases in ZZ, 3 already preserve edges), and I'm calling these edge-preserving algs OL4Cs (orient last 4 corners). I'll work on a reference list of these if enough people are interested.
It reduces memorization to the following, depending on which route you take:
I.) Phasing - swapping = 9 PLL cases (Aa/b, E, F, H, Na/b, T, Z)
II.)Phasing + swapping (1 alg with 1/2 chance of needing it) = 4 PLL cases (Aa/b, E, H)
The swap alg for the 4 PLL route is a 10-move alg, minimum, and basically makes for a 2- or 3LLL. I've personally gone with the swap-less route and am just finishing up memorizing all 9 perms.
If anyone out there is interested in a low-alg 2LLL transition from beginner CFOP, this might be for them
There are many variants on ZZ and one variant on uses phasing (ZZ-b), which permutes 2 or 4 LL edges upon insertion of the last block pair in F2L (phasing is as quick and intuitive as F2L). It's meant to reduce 1LLL cases (1 look last layer), but I've proposed using it for 2LLL to reduce PLL cases to as few as 4 compared to 21 (with 1 alg needed to swap opposite edges in some cases to finish phasing) or 9 compared to 21.
Its benefit is in building on beginner CFOP and reducing 2LLL memorization (I'm maining it for both of these reasons). The only downside is that it requires learning 4 new OLLs (of the 7 OLL cases in ZZ, 3 already preserve edges), and I'm calling these edge-preserving algs OL4Cs (orient last 4 corners). I'll work on a reference list of these if enough people are interested.
It reduces memorization to the following, depending on which route you take:
I.) Phasing - swapping = 9 PLL cases (Aa/b, E, F, H, Na/b, T, Z)
II.)Phasing + swapping (1 alg with 1/2 chance of needing it) = 4 PLL cases (Aa/b, E, H)
The swap alg for the 4 PLL route is a 10-move alg, minimum, and basically makes for a 2- or 3LLL. I've personally gone with the swap-less route and am just finishing up memorizing all 9 perms.
If anyone out there is interested in a low-alg 2LLL transition from beginner CFOP, this might be for them
