[Help Thread] Roux Discussion and Help

[Skyancez123]

Two flipped edges, nothing weird about that -.-

My confusion stemmed from the fact that the rest of the cube is solved; those are the only two edges remaining, and they need to be swapped. However, it is impossible to perform only a single swap, so how is this case possible?

These are flipped edges, or mis-oriented edges. So, this is not an impossible case, you did Step 4a) wrong in Roux, when you didn't oriented all the edges correctly (or mixed up the orientation in a later step).

"since the laws of cubing dictate that there can only be an even number of swaps" - this is true, although, your case is not a swap of two pieces. It's a flip of two pieces.

Thanks for clearing up the confusion.

 

[YddEd]

Could someone help me with my solves to see what I'm doing wrong?
Scramble: U B2 F2 U L' D F U L2 R2 B' R2 B' R D F U2 L2 B' R L F' U' B' U2
Inspection: x
First Block: L2 D' F' U' M2' B
Second Block: U R2 U M2' U R2' U2 r' U' r R U R' U2 R U2 R' U2 R U' R'
CMLL: R U R' U R U2 R' U R U R' U' R' F R2 U' R' U' R U R' F'
LSE: M2 U2 M' U2 M U' M U M2' U' M' U2 M2' U2 M
That one took forever to do XD I'll edit another one on here tomorrow.

 

[Username]

Could someone help me with my solves to see what I'm doing wrong?
Scramble: U B2 F2 U L' D F U L2 R2 B' R2 B' R D F U2 L2 B' R L F' U' B' U2
Inspection: x
First Block: L2 D' F' U' M2' B
Second Block: U R2 U M2' U R2' U2 r' U' r R U R' U2 R U2 R' U2 R U' R'
CMLL: R U R' U R U2 R' U R U R' U' R' F R2 U' R' U' R U R' F'
LSE: M2 U2 M' U2 M U' M U M2' U' M' U2 M2' U2 M
That one took forever to do XD I'll edit another one on here tomorrow.

Second block is quite long.
U M2 U r U' R could be used for one half of the SB

I'm no rouxer, so don't take my word.

 

[YddEd]

Second block is quite long.
U M2 U r U' R could be used for one half of the SB

I'm no rouxer, so don't take my word.

Yeah, second blocks are terrible XD

 

[cowabunga]

Second Block: U R2 U M2' U R2' U2 r' U' r R U R' U2 R U2 R' U2 R U' R'

Try:
M2 U R M U' (1x2x2 + pair)
R U r U r' (insert pair)

 

[Brest]

Could someone help me with my solves to see what I'm doing wrong?

Your 2nd block has too much CFOP influence, and unfortunately there are a lot of moves, even for CFOP. But this is Roux!

The initial part of 2nd block is fine, but there are still more moves than needed.
You did:

Second Block: U R2 U M2' U R2' U2 r' U' r

Which is:

U R2 // pair
U M2' U R2' // insert edge
U2 r' U' r // insert pair
View at alg.garron.us

Instead, try this:

U M2' U r U' r // RB block

If it helps, look at it like this:

U R2 // pair
r2 U // place edge
r U' r // finish block
View at alg.garron.us

-*-*-

You solved the last edge like this:

R U R' U2 R U2 R' U2 R U' R'

Which is way too many moves.

Try this:

U r U' M U R'
=
U (r U' r') (R U R') // RF pair

Even preserving M slice there is:

U F' R U R' U' R' F R // RF pair
or
R' U' R' U' R U R U R // RF pair

 

[Renslay]

Could someone help me with my solves to see what I'm doing wrong?
Scramble: U B2 F2 U L' D F U L2 R2 B' R2 B' R D F U2 L2 B' R L F' U' B' U2
Inspection: x
First Block: L2 D' F' U' M2' B

SB:
U M2 U r U' // 1x2x2
R U' r U' r' U2 r U r' // Insert last pair

Or:
U2 r2 U r U2 R' U' R U // 1x2x2
R U M U r U2 r' U' r // Insert last pair

 

[andrey]

I've heard from a variety of sources that experienced Roux solvers complete step 4a (EO) and 4b (UL & UR pieces) as a single step. I seem to have trouble transitioning fluently, leading me to believe this is a heavy contributor to increased times.

Any tips to look out for in these steps? Perhaps I need a new perspective of this.

 

[CheesecakeCuber]

I've heard from a variety of sources that experienced Roux solvers complete step 4a (EO) and 4b (UL & UR pieces) as a single step. I seem to have trouble transitioning fluently, leading me to believe this is a heavy contributor to increased times.

Any tips to look out for in these steps? Perhaps I need a new perspective of this.

Just practice tracking your UL and UR edges. This is the only way until you become more advanced and try to do them simultaneously.

 

[Renslay]

I've heard from a variety of sources that experienced Roux solvers complete step 4a (EO) and 4b (UL & UR pieces) as a single step. I seem to have trouble transitioning fluently, leading me to believe this is a heavy contributor to increased times.

Any tips to look out for in these steps? Perhaps I need a new perspective of this.

See for example the following scrambling:
D B F' R' D2 U2 L' B' F U x2

The EO is simple here, just a regular U' M' U M. However, instead of that, if we choose a different solution, we can influence the UL/UR edges to a better position:
U' M' U' M
the remaining part is fast and easy:
U M2 U E2 M' E2 M'

Another example:
B L' B D' R' L B U' L U R2 L2 D2 x

Instead of M' or M, we start with U M, which lead us to an easy EO, where we can put UL/UR in its place again directly: U M' U' M' U', and finally, E2 M' E2 M'.
(whole solution: U M U M' U' M' U' E2 M' E2 M')

This unfortunetly not always work (at least for me...), but in 1 out of 3 or 4 cases EO can be merged with UL/UR quite easily. Just keep practicing of tracking elements.

 

[pijok]

This: http://www.speedsolving.com/forum/showthread.php?38176-Roux-Misoriented-Centers-Table

 

[YddEd]

Could someone help me with my solves to see what I'm doing wrong?

Spoiler

Scramble: U B2 F2 U L' D F U L2 R2 B' R2 B' R D F U2 L2 B' R L F' U' B' U2
Inspection: x
First Block: L2 D' F' U' M2' B
Second Block: U R2 U M2' U R2' U2 r' U' r R U R' U2 R U2 R' U2 R U' R'
CMLL: R U R' U R U2 R' U R U R' U' R' F R2 U' R' U' R U R' F'
LSE: M2 U2 M' U2 M U' M U M2' U' M' U2 M2' U2 M

That one took forever to do XD I'll edit another one on here tomorrow.

Another 2

Spoiler: Scramble/Solution 1

Scramble: U2 F U L2 R D2 L D F B U' D B' L B2 L2 F D L2 U' B' D2 B2 F' R
z2
First Block: B D M' U x2 L' D' U' R' U R L U L' U r B'
Second Block: R U2 R' U' R2 U R M U R U2 R2 F R F'
CMLL: U2 R' U' R U' R' U2 R2 U R' U' R' F R2 U' R' U' R U' R' F'
LSE: U2 M' U M' U M2' U M2' U' M U2 M

Spoiler: Scramble/Solution 2

Scramble: D U' B F' L' D' U R2 D B' U R2 B' R2 F2 D' L' F' D2 L' R F' D' F2 B
y'
First Block: U2 B2 M U L U L2 U' M U' M2' U2 F'
Second Block: U2 M2' R U2 r U r' M' R' U' R U r' U' R
CMLL: U2 R' F R U R' U' R' F' R U R F R U' R' U' R U R' F' R U R' U' R' F R F'
LSE: U2 M U M U M2' U M2' U' M' U2 M U2 M2'

 

[Username]

Another 2

Spoiler: Scramble/Solution 1

Scramble: U2 F U L2 R D2 L D F B U' D B' L B2 L2 F D L2 U' B' D2 B2 F' R
z2
First Block: B D M' U x2 D L' D' U' R' U R L U L' U r B'
Second Block: R U2 R' U' R2 U R M U R U2 R2 F R F'
CMLL: U2 R' U' R U' R' U2 R2 U R' U' R' F R2 U' R' U' R U' R' F'
LSE: U2 M' U M' U M2' U M2' U' M U2 M

What is that first block?

 

[YddEd]

What is that first block?

I couldn't find another one that was good... One of those scrambles where I am completely stuck.

 

[Username]

y2 M B2 L U' x R' U R2 U2 F'
x z R' U2 M2 F' R2 U2 R U' B
y2 U R2 r' B L' U x' U' B

I don't do Roux, but this is a really easy roux scramble for me

 

[MWilson]

Solution 2

Scramble: D U' B F' L' D' U R2 D B' U R2 B' R2 F2 D' L' F' D2 L' R F' D' F2 B
y'
First Block: U2 B2 M U L U L2 U' M U' M2' U2 F'
Second Block: U2 M2' R U2 r U r' M' R' U' R U r' U' R
CMLL: U2 R' F R U R' U' R' F' R U R F R U' R' U' R U R' F' R U R' U' R' F R F'
LSE: U2 M U M U M2' U M2' U' M' U2 M U2 M2'

To finish the first block you did a pair as (U') M U' M2' U2 F'. You don't need to build the pair on the top layer, try something like (U') M U' R2 F.

 

[Renslay]

Solution 1

Your solution does not work, so I have to guess which block colors do you prefer.

Scramble:
U2 F U L2 R D2 L D F B U' D B' L B2 L2 F D L2 U' B' D2 B2 F' R

z2 y'
M' U2 M R U x' // 1x2x2
B M2 r B' // FB
U M2 U M' U R' U' R2 // 1x2x2
U' M U M' r U R' // SB
U R' U' R U' R' U R U' R' U R U' R' U2 R // CMLL(preserve EO)
U' M' U2 M' U' M2 U // ULUR
M' U2 M2 U2 M // Mperm



Solution 2

Scramble:
D U' B F' L' D' U R2 D B' U R2 B' R2 F2 D' L' F' D2 L' R F' D' F2 B

y' x'
r U r R D' // 1x2x2
R2 U' r' M U x' // SB
U2 R U' M2 U' // 1x2x2
R U R // SB
U R' U' R U' R' U2 R2 U R' U R U2 R' // CMLL
M U' M' U2 M' U M' // EO
U M' U2 M U // ULUR
M2 U2 M U2 M // Mperm

 

[YddEd]

Solution 1

Your solution does not work, so I have to guess which block colors do you prefer.

Scramble:
U2 F U L2 R D2 L D F B U' D B' L B2 L2 F D L2 U' B' D2 B2 F' R

z2 y'
M' U2 M R U x' // 1x2x2
B M2 r B' // FB
U M2 U M' U R' U' R2 // 1x2x2
U' M U M' r U R' // SB
U R' U' R U' R' U R U' R' U R U' R' U2 R // CMLL(preserve EO)
U' M' U2 M' U' M2 U // ULUR
M' U2 M2 U2 M // Mperm



Solution 2

Scramble:
D U' B F' L' D' U R2 D B' U R2 B' R2 F2 D' L' F' D2 L' R F' D' F2 B

y' x'
r U r R D' // 1x2x2
R2 U' r' M U x' // SB
U2 R U' M2 U' // 1x2x2
R U R // SB
U R' U' R U' R' U2 R2 U R' U R U2 R' // CMLL
M U' M' U2 M' U M' // EO
U M' U2 M U // ULUR
M2 U2 M U2 M // Mperm

Fixed my first solution (I think). I'm white/yellow neutral.

 

[kasochi]

Another 2

Spoiler: Scramble/Solution 1

Scramble: U2 F U L2 R D2 L D F B U' D B' L B2 L2 F D L2 U' B' D2 B2 F' R
z2
First Block: B D M' U x2 L' D' U' R' U R L U L' U r B'
Second Block: R U2 R' U' R2 U R M U R U2 R2 F R F'
CMLL: U2 R' U' R U' R' U2 R2 U R' U' R' F R2 U' R' U' R U' R' F'
LSE: U2 M' U M' U M2' U M2' U' M U2 M

Spoiler: Scramble/Solution 2

Scramble: D U' B F' L' D' U R2 D B' U R2 B' R2 F2 D' L' F' D2 L' R F' D' F2 B
y'
First Block: U2 B2 M U L U L2 U' M U' M2' U2 F'
Second Block: U2 M2' R U2 r U r' M' R' U' R U r' U' R
CMLL: U2 R' F R U R' U' R' F' R U R F R U' R' U' R U R' F' R U R' U' R' F R F'
LSE: U2 M U M U M2' U M2' U' M' U2 M U2 M2'

First Block should be finished in less than 10 moves or so.
I recommend you make block many times with same scramble and go over some top rouxers' reconstructions.

 

[GuRoux]

Scramble: U2 F U L2 R D2 L D F B U' D B' L B2 L2 F D L2 U' B' D2 B2 F' R
y
first block: r U' R2 U B2 F R r2 F
second block: R' M2 U2 r U R' U' M U r'
cmll: F R U R' U' F' L' U R U' L U R'
LSE: M2 U M U M U M' U2 M'

Scramble: D U' B F' L' D' U R2 D B' U R2 B' R2 F2 D' L' F' D2 L' R F' D' F2 B
x2 y
first block: r' U' R U M' U2 B r' U2 M F
second block: r U R2 U2 R' U' R2 U R' U' R U R'
cmll: L U L' U L U2 l'
LSE: M' U' M' U2 M U' M U' M' U' M' U' M2 U2 M2 U M2