The "Request an Alg" Thread

[scottishcuber]

They might do, since it's just two F2L inserts.
It's a nice alg, but I don't think it's faster than U2 + normal OLL. But I think I'll use it for OLLCP.

I definitely think its faster than U2 + OLL, but it doesn't really matter because it's worth learning anyway.

 

[Parity Case]

Anything good for OLL 35 from the y2 angle?
There's nothing on the wiki or algDB.

Scottish Cuber’s alg is nice. Here’s a different one I came up with a few weeks ago, flows well:

(L U2 [L' r'] U) (L U' r) U2 L'

Start with left thumb on top, right thumb on front. Do [L’ r’] as one simultaneous move. Use right ring finger to push the U, and left index for the U’.

EDIT: Same alg, improved flow:

(L U2') (r2' F r U' r) U2 L'

...Start with left thumb on top; right thumb is on front and right index on back, across the 1st & 2nd layer gap. Do an Eido U2' using left index to push it the whole way.
...The second set of bracketed moves can be done in a nice singe twist motion. Right middle pushes F from above and left index does the U'. Right thumb should end up on top by the end of r - shift it to the front, and flick U2 with right index and right middle.

 

[stoic]

Thanks.

 

[Jlvs2run]

Beginning method ~ missing algorithm?

I'm starting with this beginning method, but there appears to be a missing algorithm in step 5.

[ L R' U' R U L' U' R' U R ]

"This algorithm rotates 3 corner pieces counter-clockwise, and leaves the fourth corner untouched."

Having a clockwise algorithm would be faster half of the time, compared to having to do the same algorithm twice. Is one available? Or is going counter-clockwise twice faster by not checking the direction?

 

[AlphaSheep]

[ L R' U' R U L' U' R' U R ]

"This algorithm rotates 3 corner pieces counter-clockwise, and leaves the fourth corner untouched."

Having a clockwise algorithm would be faster half of the time, compared to having to do the same algorithm twice. Is one available?

Yes, there are many available. One is
L' R U R' U' L U R U' R'
What I've done is reflect the algorithm from front to back, so every move is done in the opposite direction.

There are shorter algorithms that cycle three corners that may be easier to remember. For example
R U' L' U R' U' L U
cycles 3 corners counter-clockwise, leaving the front left corner untouched, and it's inverse (do the algorithm backwards with the moves in the opposite direction)
U' L' U R U' L U R'
undoes the effect, so it cycles them clockwise also leaving the front left corner untouched.

 

[Jlvs2run]

There are shorter algorithms that cycle three corners that may be easier to remember.
For example R U' L' U R' U' L U cycles 3 corners counter-clockwise, leaving the front left corner untouched, and it's inverse (do the algorithm backwards with the moves in the opposite direction)
U' L' U R U' L U R' undoes the effect, so it cycles them clockwise also leaving the front left corner untouched.

Thank you!

 

[stoic]

Is there a list of supercube-safe PLLs anywhere?
And a secondary question if not: can all supercube PLLs be solved <R,U,F>?

 

[TDM]

Is there a list of supercube-safe PLLs anywhere?
And a secondary question if not: can all supercube PLLs be solved <R,U,F>?

Don't know about the first question, but the answer to the second is yes.

T perm and Y perm can solve CP with only twisting the U centre. U perms can then be used to solve EP, twisting the U and R centres. 3*U perm can twist the R centre (and the U centre) until it's solved again, and that should leave the U centre either solved, or turned 180 degrees, in which case you can solve it with (R U R' U)5 or (R U' R' U')5.

So although it is possible to do it in that way, it's a slow method. However I'm sure faster algs could be generated.

 

[stoic]

Thanks TDM, that's great. I'm working on a method for Dayan Bermuda and I'm not worried about speed.
Just checking it's viable.

 

[qaz]

I put together a list of setup moves to combine a single dedge flip and OLL on 4x4 here. All of the 2-corner and H cases are pretty good, but I'm sure there are better solutions for the pi, sune, and antisune cases if anyone wants to look for them.

 

[turtwig]

Advanced F2L? I watched Badmephisto's video on it (and realized how much I need to improve) and looked at some of the pages he gave. I was wondering whether there are newer pages, as the pages he has are all a couple of years old. Thanks.

 

[Marcos Gaudens]

Sorry if this is a stupid question....
What are the PLL's used in review/unboxing videos for 3x3's.

 

[Bindedsa]

Sorry if this is a stupid question....
What are the PLL's used in review/unboxing videos for 3x3's.

There's no standard, try a T Perm and a Y Perm to test RUF, the RUD R perm and Hperm/ Zperms for M moves. It's just meant to test out how it preforms.

 

[whauk]

There must be a relatively simple alg that solves the F2L-case with setup R U R' U2 R U2 R' and flips all 4 LL-edges. Someone showed it to me at some competition but I forgot it.

 

[Torch]

There must be a relatively simple alg that solves the F2L-case with setup R U R' U2 R U2 R' and flips all 4 LL-edges. Someone showed it to me at some competition but I forgot it.

I don't know if this is the alg you're looking for, but U M' U' M U2 L F' L' works.

 

[Bindedsa]

I don't know if this is the alg you're looking for, but U M' U' M U2 L F' L' works.

M' U' M U2 r U' r of course.

 

[Jezuz]

Tricky commutator for 4bld edges/wings

Hi!
I am working on commutators for 4bld edges and I have a problematic case perhaps someone can help me with.
I use DFl as my buffer and run into problems when trying to find a good commutator for the following cycle:

DFl -> FDr -> UBl

Does anyone now a good commutator for this? The only ones I can come up with involves doing quite a few setup moves which makes it tricky to remember during a solve.

 

[Username]

[r2 B R B' U R2 U', l2]

There is probably a better way than using r2 (or l2 in your case I guess)

 

[tseitsei]

r2 [U R' U' B' R2 B : l2] r2

ninja'd

 

[Ollie]

U' l2 U l' D2 l U' l' D2 l' U // basically a one move setup to a 9-mover, is how I remember it, reading the commutator notation for this case makes it feel confusing.

Rw2 U2 l' U2 Rw' U2 Rw U2 l U2 Rw' U2 Rw' // no setups, per se, might be a bit easier to learn as it fingertricks like a dream