[Help Thread] Roux Discussion and Help

[arvind1999]

I do it like CFOP. Edge first, then two corner-edge. Is that bad?

Inefficient. Roux has its own beauty in blocks. Get rid of that if you want Roux as your main.

 

[Dennis]

I do it like CFOP. Edge first, then two corner-edge. Is that bad?

Then you don't do Roux...
Main reason, like others said, use wide R's or M's to orient bad edges for a rotationless F2B

Maybe this link helps http://cubeloop.com/?p=827

 

[KingTim96]

Having trouble with Roux

Hello i need help. I've been learning Roux for a little bit now because I wanna take a break from fridrich and learn something new. I'm pretty okay with the block building and CMLL, I just have a lot of trouble understanding LSE and how to permute them. Especially when i have (white center on bottom and yellow center on top) a couple white edges on the yellow side and some yellow edges on the white side. What do I do? If you could answer that I'd be very thankful.

Also, when I do get lucky and have all the white edges on the white side and yellow edges on the yellow side, I sometimes end up with an A-permutation. My question is, is it okay when I get an A-perm to use my normal fridrich algorithm for it? Or is there way "more Roux way" of solving it? Thanks everyone!

P.S. I didn't think this would be appropriate for the OAQT because I'm asking two questions and I'm hoping the answers I receive and nice and help me out a lot. Once again thanks for the help!

 

[Kirjava]

Especially when i have (white center on bottom and yellow center on top) a couple white edges on the yellow side and some yellow edges on the white side. What do I do? If you could answer that I'd be very thankful.

It sounds like you don't even understand what to do. Did you read Gilles' page for steps 4b and 4c? Please understand what the steps entail, then you can worry about actually doing them.

Also, when I do get lucky and have all the white edges on the white side and yellow edges on the yellow side, I sometimes end up with an A-permutation. My question is, is it okay when I get an A-perm to use my normal fridrich algorithm for it? Or is there way "more Roux way" of solving it? Thanks everyone!

You should only perform A perm in Roux when you get an orientation skip and an LSE skip. If you're normally ending up with A perm, you haven't completed CMLL correctly before moving onto LSE.

 

[arcio1]

I suppose that you just don't finish one step and you want to do another.
LSE is:
-egde orientation
-permutation of UL and UR edges
-permutation of everything else
do you do this like this?

And you can't end up with A perm, you have to solve corners before LSE.

edit:

ninja'd

 

[Kirjava]

You didn't read what to do before asking for help...

wtf speedsolving

 

[Chilli]

Roux Help (2nd Block)

So a couple weeks ago I wanted to try out roux and after 18 days, my times have plummeted from around a minute down to 21-30 seconds, which is great. But here's the thing. My second block SUCKS. It takes me 8 or 9 seconds to do and I rarely get under 16 STM. I've done some example solves and if anyone could give me tips/comments on the solves and how to improve that would be great. Scrambles are Yellow U, Red F.

Scramble 1: r U r' R U2 r' U' r R' U' R r2 U2 r U R r' U' R2 U2 R' r U' R r' My solution

Spoiler

U' R2 U r - Pair up green/orange pair
U R' U M' U2 M U - Add green/white edge
r2 U' M2 - Pair up green/red pair
U2 r U r' - Insert
(18 STM)

Scramble 2: U R2 U' r2 U2 r U' r' R2 U2 r2 R2 U r' R' U r2 U2 r' R U2 R2 U' R U My solution

Spoiler

This one is quite lucky, because there's an edge attached to the center, and a 1x2 already paired up.
r U r2 - Attach 1x2 to the solved edge, rotate into the back
U' R U' R' U R U' R' - I feel like this could be more efficient, this is a rather CFOP-y approach.
(11 STM)

Scramble 3: U r' U2 r U' r R U' r U' R' U2 r' U2 r U' r2 U' R2 U' R U R' r' U My solution

Spoiler

U' r' M U M' - Pair up red-green pair
U' r2 U' r' M U M' U' Add green-white edge
R2 U M2 - Pair up green-orange pair
r' U' r - Insert
(19 STM)

Any help appreciated

 

[Bestsimple]

Well for the first scramble i would do this U' R to pair make a pair r U' to connect edge to center R' U2 make the square R' U2 R' U' R U r U' R to finish the block. There are no strict rules just don't time yourself and find tricks overtime.

For the second one you could've of just done F R' F' then U2 r U r'

 

[Renslay]

My solutions (non-FMC, I probably would do these if I meet the same cases):

First one 16 STM:

Spoiler: spoiler

R U' R2 r U R U2 (first 1x2x2)
R U M U r U2 r' U' R (last pair)
alg.garron.us

Second one 8 STM:

Spoiler: spoiler

F R' F' R2 B' R' B R'
A very lucky one.
alg.garron.us

Third one 18 STM:

Spoiler: spoiler

U R U' M U' M U' R U
R2 U' R' U2 R U r' U' R
alg.garron.us

or 18 STM (alternative):

Spoiler: spoiler

U' R U r2 U' r' U' R' U2
R' U R' M' U r2 R' U' r'
alg.garron.us

or 18 STM (alternative):

Spoiler: spoiler

R' U' M U' R2 U' r' R' U' R U
r' R2 U2 M' r U R'
alg.garron.us

 

[CheesecakeCuber]

Could anybody tell me which CMLL cases I should learn first?

 

[danfresh666]

Could anybody tell me which CMLL cases I should learn first?

Begin with the H set because there's only 4 algoritms, then learn Pi set, Headlights, Chameleon, L set, and finally the sunes.

 

[arvind1999]

Where should I learn CMLL from? How do I recognize them faster?

 

[arcio1]

Arvind, I recommend looking for comfortable ones everywhere
You can learn recognition here: wafflelikescubes.webs.com

 

[Chilli]

After step 4a, is it viable to solve the D face edges and then use EPLL if there is an easy solution or D face is already solved?

 

[Ross The Boss]

i usually average 18 seconds but recently my averages have just jumped up to 21-22 seconds for the last 2 weeks and i cant get them down. has any one else had this problem?
i am learning to be y-colour neutral and to not solve the second block "like f2l" any more. could my increase in times be a result of this?

 

[arcio1]

1. Slowturning is the solution
2. Yes.

 

[D a n i e l]

Need help

I'm new to Roux, and I have a few questions. I'm having trouble with a certain situation when I start to solve the top edges.

Here's a scramble that looks similar to my situations: (White on top and Green on Front) L' B' L D2 L2 D U2 F D R U' R U' (Here is is on alg.garron.us)

Now when solving with blue on top and orange on the front, what do I do when the white-blue and yel-blue are on the bottom face, but not facing the same way?

As for my other question, is there a PDF (or something printable) for Roux, similar to these ones: http://www.kungfoomanchu.com/#333

 

[Smiles]

After step 4a, is it viable to solve the D face edges and then use EPLL if there is an easy solution or D face is already solved?

if you realize the D face is solved, go ahead but u should learn the <M,U> U perms as well.
and no you shouldnt be inserting D edges for a forced U perm cause its actually slower once your LSE is good

 

[Renslay]

I'm new to Roux, and I have a few questions. I'm having trouble with a certain situation when I start to solve the top edges.

Here's a scramble that looks similar to my situations: (White on top and Green on Front) L' B' L D2 L2 D U2 F D R U' R U' (Here is is on alg.garron.us)

Now when solving with blue on top and orange on the front, what do I do when the white-blue and yel-blue are on the bottom face, but not facing the same way?

Your edge orientation is even wrong or missed. After the CMLL you have 3 substeps to finish the so called LSE (Last Six Edges, the last step of Roux):

4a) Orient all the remaining 6 edges
4b) Solve UL/UR edges (blue-yellow and blue-white)
4c) Permute the remaining 4 edges on M slice

You missed 4a), since you have two misoriented edges, yellow-blue and orange-blue. You can solve the given example like this (for example):

1) x' y' M' U M U M' U M' (4a)
2) U2 M' U2 M U (4b)
3) U2 M2 U2 (4c)
Solution in alg.garron.us

Of course there are many other ways to do this. But until you do not use shortcuts (recommended for advanced rouxers), you always have to do these 3 substeps in order. (Later, you can easily combine 4a) and 4b), but that came with practicing and experimenting. Mostly.)

 

[D a n i e l]

Your edge orientation is even wrong or missed.

Huh. I always orient the edges before I start to go try to solve them. Maybe that wasn't a good example. Is there a possibility I could end up in that same situation with the edges oriented correctly?

From this tutorial:

General Rules for UL and UR Permutation.

1) To preserve the EO, you can do M2 moves and U moves to permute stuff into place

2) It's okay to just use an M' or M move as long as you follow up with a U2 and another M' or M

I think I may be doing that part wrong. Would M2 U2 M2, or M2 U2 M' follow those rules?

The way I get into that bad situation is usually when the edges I need to be across from each other, are right next to each other like this:

U2 B2 L2 D' F2 L2 B2 U' R2 U2

View at alg.garron.us

After fiddling with it a little, I think I figured it out, but I still don't completely understand.