The "Request an Alg" Thread

[guysensei1]

Alg to cycle DF UB UL. It would be preferred to have it rotationless and Consisting of RUD and M moves if at all possible. Thanks

U R U R' U' M2 U R U' R' M2 U' ?

 

[Underwatercuber]

U R U R' U' M2 U R U' R' M2 U' ?

Thanks

 

[Brest]

Alg to cycle DF UB UL. It would be preferred to have it rotationless and Consisting of RUD and M moves if at all possible. Thanks

[D R2: (Uperm)]
=
D U' R' U' R U R U R U' R' D'

 

[Bailey Mitchell]

Any sub 8 move Aa perms? If not ill like to know any u guys use
Thanks

 

[Username]

Any sub 8 move Aa perms? If not ill like to know any u guys use
Thanks

9 moves is optimal

 

[Bailey Mitchell]

9 moves is optimal

Whats ur alg?

 

[Duncan Bannon]

There are two nine move Aa perms on Alg.db

 

[Bailey Mitchell]

There are two nine move Aa perms on Alg.db

ty

 

[TDM]

OH CMLL:

Nobody I've asked seems to have anything better than F R2 D R' U R D' R2 U' F'. Anybody else have anything?

 

[obelisk477]

OH CMLL:

Nobody I've asked seems to have anything better than F R2 D R' U R D' R2 U' F'. Anybody else have anything?

F U' R U' R' U2 R U' R' U2 R U' R' U' F' or inverse

 

[d0pe_asaurus]

Anyone have a VLS PDF

 

[SamKennedy]

I'm trying to learn some cube theory to help with FMC, and I've ended up with an unusual cycle:

(FDR LFU LUB DRF)

For the 3-corner cycles I've solved using commutators, the first and last stickers have been the same.

I came up with:
A: U R2 U'
B: L'

It is then applied in the order: B A B' A' resulting in: L' U R2 U' L U R2 U'

All the corners end up in the right place, but the DRF and UBR corners are mis-oriented.

Any help would be really appreciated, I'm really finding this interesting!

 

[xyzzy]

You have a corner twist, plain and simple. If you have only three corners left (and it's not a pure twist), the first and last stickers must be the same; the only times this doesn't happen is when you have at least four corners left. If you do have another twisted corner somewhere, the way to handle that is to do an insertion using two pieces from the 3-cycle and (any sticker of) the twisted corner, which will leave you with an ordinary 3-cycle.

(Or, you could have traced the cycle wrongly.)

 

[Underwatercuber]

I'm trying to learn some cube theory to help with FMC, and I've ended up with an unusual cycle:

(FDR LFU LUB DRF)

For the 3-corner cycles I've solved using commutators, the first and last stickers have been the same.

I came up with:
A: U R2 U'
B: L'

It is then applied in the order: B A B' A' resulting in: L' U R2 U' L U R2 U'

All the corners end up in the right place, but the DRF and UBR corners are mis-oriented.

Any help would be really appreciated, I'm really finding this interesting!

[D’ B D, F’] is what I would use for this case, make sure you are inserting and interchanging not just the piece but also each sticker to the right spot.

 

[Hazel]

Is there a list of algs for the 1LLL cases where all 4 edges are unoriented? If not then I could make one.

 

[Piotr Grochowski]

A subset is CLLEF, which ignores edge permutation: https://www.speedsolving.com/wiki/index.php/CLLEF

 

[xyzzy]

Is there a list of algs for the 1LLL cases where all 4 edges are unoriented? If not then I could make one.

It's called anti-ZBLL and at least one person learnt all of it, but I don't think there's any good list of algs. This is partly because many cases just don't have good algs; no RUF last layer alg with at most two F-face moves can flip four edges, and likewise for RrU with at most two r moves. (Compare ZBLL, which can always be done RUL, RUD, or RUF with at most two non-RU moves.)

This obviously isn't a blanket claim that all anti-ZBLL algs are bad. There're some with four r moves, or some that use L F (which executes sort of like r U x'), or some that use four F moves in the form of two sledgehammers, but the point is that they're inherently "not as nice" as ZBLL or 2-flip 1LLL.

Recognition is (said to be) really good, though, since you have all the stickers needed for case recognition on the top face.

(If you're going to make a list, you could probably save a lot of time by taking algs from Birdflu instead of running them through Cube Explorer or ksolve or whatever.)

 

[Piotr Grochowski]

Solve these cases. You may mix the white and yellow colors in your algorithms. After that, separation and PBL should remain.

 

[Joël]

Solve these cases. You may mix the white and yellow colors in your algorithms. After that, separation and PBL should remain.

If you are talking about the first step of Geatan Guimond's method (without cube rotations):

U F' L F' L
U' R B' R B'

Usually I'll set it up so that I can do R' F R' F, or L F' L F'.

 

[CornerCutter]

What is an alg for the annoying case?