[Help Thread] FMC Discussion

[Jake Donnelly]

I don't know to how orient the edges, after I do f2l -1 I don't know what to do. Can someone plz help

 

[shadowslice e]

I don't know to how orient the edges, after I do f2l -1 I don't know what to do. Can someone plz help

Look at Petrus, ZZ or the link posted above.

 

[Jake Donnelly]

So if I do zz I have to orient the edges at the start of my solve or after f2l -1?

 

[shadowslice e]

So if I do zz I have to orient the edges at the start of my solve or after f2l -1?

For ZZ, generally you do it at the start but if you read this, it will provide you with a very firm foundation for which to build your FMC techniques and skills on.

 

[Jake Donnelly]

It says that u can orient the edges at the start but it limits block building but he says the best thing to do is partially orient the edges during block building so when u finish doing f2l -1 u can do a corner commutator to solve the rest of the cube

 

[Jake Donnelly]

I don't know how to finish this solve
Scramble: U2 R2 D F2 L2 R2 F2 U' B2 D2 B2 F' L2 F' L R B' F2 L' U F'
Hold blue in front and orange on top
2x2x2: L F' L' U L
2x2x3: F R2 F' R' F' U2 F

 

[tseitsei]

I don't know how to finish this solve
Scramble: U2 R2 D F2 L2 R2 F2 U' B2 D2 B2 F' L2 F' L R B' F2 L' U F'
Hold blue in front and orange on top
2x2x2: L F' L' U L
2x2x3: F R2 F' R' F' U2 F

My quick attempt and thought process with your start and without any fancy tricks:

Still holding blue in front and orange on top to be as clear as possible.
U' B' U // make a pair and orient it correctly
Now I tried the obvious B2 R B2 continuation to get F2L-1 but I was left with bad edge case so instead I did
R' B2 R2 //2X2X1 block
Now I could do simple B2 to make F2l-1 once again but I would leave yellow-blue edge with wrong orientation so I instead did
B R B // F2L-1 and all edges oriented
And now you have 2 options to finish the skeleton*:
1) The "normal" way leaving 5 corners to be solved:
U R2 U' R // solves everything but 5 corners
And then you would solve the remaining 5 corners with 2 corner insertions*.
2)corner+edge way leaving 3 corners and 3 edges to be solved:
R' // solves everything but 3 corners and 3 edges
And then you once again solve the remaining pieces with 1 edge insertion and 1 corner insertion.

*if you don't know what skeleton/insertion means and how to use them you can find out by reading the tutorial linked for you earlier this page

EDIT: Another funny (luckyish) ending. Same until F2L-1 and then:
R U R U' //F2L + OLL skip (leaves J-perm)
D U Rw2 U' R' U Rw2 U' R D' R // move optimal J-perm + AUF

 

[Jake Donnelly]

Thank u this has helped me a lot

 

[Attila]

Scramble (from the German forum, ongoing comp.):
R' U' F D2 L2 D2 L U2 F2 R D2 B' D U' R' B2 L' U' F' U2 L D' R' U' F

I found this:

Spoiler

B' F D2 L B L' R D' F' D F' R2 D B2 U' R2 B U2 D2 F' U 21 moves (18 STM)

. R2 D @ R' B R' orient corners and 3 edges,
inserted moves:
. = S'
@ = B E B'
after insertions: B' F D2 L B L' R D' F' D F' orient corners and 6 edges,
R2 D B2 U' R2 permute corners,
B U2 D2 F' U LSE.

 

[Daniel Lin]

Cool edge commutator that might be useful for FMC
[F2 R2 F2, U2]
has this been already found? I got it by randomly turning

EDIT: you can mirror it or do [R2, F2 U2 F2] or do the mirror of that, which
gives lots of possiblities for cancellations

 

[guysensei1]

Cool edge commutator that might be useful for FMC
[F2 R2 F2, U2]
has this been already found? I got it by randomly turning

EDIT: you can mirror it or do [R2, F2 U2 F2] or do the mirror of that, which
gives lots of possiblities for cancellations

Eh, optimal is 6 moves though, probably better to use optimal except in special cases.

I also know this commutator from half turn cube solving XD

 

[Daniel Lin]

Eh, optimal is 6 moves though, probably better to use optimal except in special cases.

8movers are still good(iirc Kit got a 21 with a 12 mover)

Are there any other "non-intuitive" comms?
The only other one I can think of is [R B L F, U]

 

[Hssandwich]

A very stupid FMC solve:

D F2 R2 D L2 D2 L2 B2 L2 D' L D' F D' L2 F L' D' B' F2

Spoiler

D F2 R2 D L2 D2 L2 B2 L2 D' L D' F D' L2 F L' D' B' F2
i: F2 B D L F' L2 D F' D L' D L2 B2 L2 D2 L2 D' R2 F2 D'

B' //222 1
U R' F' R' //blocks 5 THIS PART IS THE STUPID PART
U2 //Pseudo F2L-1 6
(R F R) //F2L-1 + tripod block 9
U' R U R' 13 //F2L+OLL skip
(R' F R' F' U' R' U2 F' U' F U' R U R) //V-perm (cancels 4 moves )

Solution: B' U R' F' R' U R U R2 U' R' U F' U F U2 R U F R F2 R'

 

[Cale S]

R L2 U2 F2 R2 D' B2 U' F2 L2 D' R B F2 R' D' L U R U

(L R' U F) // EO
(D2 R' D') // pseudo 2x2x2
(U2 F2 R U') // to 3 edges and some corners

U R' F2 U2 D R @ D2 F' U' R L'
@ = R L2 D' L' D L' ^ R' // 17 to L3C
^ = [L F2 L', B2]

Final solution: U R' F2 U2 D R2 L2 D' L' D F2 L' B2 L F2 L' B2 D2 F' U' R L'

23 moves

 

[Ranzha]

I did the Manhattan scrambles

Spoiler: 27

Scr: R' U' F U2 L2 B2 R B2 R2 U2 B2 L' B F2 D' L B' L2 F' D B2 L' F2 R' U' F

1-move pairs: R D(2) L2

Scrapped:
D (D F' R F D L R2) // 2x2x3
(U F2 L F L') // F2L-1

What I went with:
D (D2 L)
(F U R F)
(L2 B2 L' D L') // F2L-1
U L F' L' F // square
(L' U' L U') // pair
(R U2 L' U' L U2 R') // 3 pairs?!

Final: D U L F' L' F R U2 L' U L U2 R' U L' U L2 D' L B2 L2 F' R' U' F' L' D2 (27)

Spoiler: 28

Scr: R' U' F R' D2 F2 R' B2 R' D2 L2 D2 B' F2 U2 F' L U R2 F2 R' U2 L F' R' U' F

Something else I found:
(B’ D U2 R2 L2)
(U’ R U D)
B D B U

What I went with:
Backup skeleton found in first 6 minutes:
(B’ D U2)
(L R’ B R’ B’ (1) L U R)
(U B2 U’ B (2))

(1) [B D B’, U’] 345 8-2
(2) [B2, D F’ D’] 123 8-1

Final: D F’ D’ B2 D F D’ B U B2 U’ R’ U’ L’ U’ B D B’ U B D’ R B2 R L’ U2 D’ B (28)
Ugh this was optimal

Spoiler: 22

Scr: R' U' F L2 D L2 F2 U2 B2 D' B' U L' F' R B2 R D' F2 R D2 B2 R' U' F

(D') // two pairs?!
B2 // square
(U R2 B' L' D L' R F) // ps F2L-1
(D2) // ONE PAIR?!
(R' D B R' D R2 D' R B' D' R) // wat

Final: B2 R' D B R' D R2 D' R B' D' R D2 F' R' L D' L B R2 U' D (22)

Bonus: This week's David Adams (spoilers (duh))

Spoiler: 24

Scr: F' U' D' F2 L' B' F2 D2 R U' F' B D F' L U2 F L' R2 F2

L' D2 L R2 U2 B2 // 223 (6)
(F' D' F D R2 U' F' R2 F U) // AB3E (16)

skel L' D2 L R2 U2 B2 U' F' R2 F @ U R2 D' F' D F
@ F D' F' D U' R D R' D' U // 10-2

Final: L' D2 L R2 U2 B2 U' F' R2 F2 D' F' D U' R D R' D' U2 R2 D' F' D F (24)

Bonus bonus: After the hour, found this for the David Adams (also spoilers (also duh))

Spoiler: 21

L' F2 U2 L2 R' D2 // 223 (6)
U F2 U'
R F U' R2 // square
R' F' R F U2 F2 U' // 19 to 3C Optimal cancels 6 for a 21

 

[Kit Clement]

iirc Kit got a 21 with a 12 mover

And I'd never expect that to happen again for me

 

[Bubtore]

Just did the first attempt from Indiana (where the NAR was done) and it already started greatly !

S // R' U' F U' R2 B2 D2 L2 D2 F2 U' B2 U R' F' R D2 L' U' B F2 D2 U B R' U' F
I // F' U R B' U' D2 F2 B' U L D2 R' F R U' B2 U F2 D2 L2 D2 B2 R2 U F' U R

(F U' D R) // 222
(D' = L B2 D) // 223
(B2 L B2 L B' L B2) // L4C

= D R2 D' L' D R2 D' L

Skel // B2 L' B L' B2 L' B2 D' B2 L2 D R2 D' L D + R D' U F' - 19
+ D R U R' D' R U' R'

Solution // B2 L' B L' B2 L' B2 D' B2 L2 D R2 D' L D2 R U R' D' R D' F' - 22 Moves

edit : second one is just as great !

S // R' U' F D2 R D2 F2 L B2 L' B2 L2 B' U2 F L B D' L U' R B D R' U' F
I // F' U R D' B' R' U L' D B' L' F' U2 B L2 B2 L B2 L' F2 D2 R' D2 F' U R

(L' D' B' D *) // EO
(F' D2 L' B' L') // 222
(D2 R' F' D2) // 223
(R' F2) // 4E

* L' U2 F2 U2 F2 U2 F2 L

Solution // F2 R D2 F R D2 L B L D2 F L' F2 U2 F2 U2 F2 U2 L D' B D L - 23 Moves

edit 2 : last one is 29, which makes 24.67 mo3 and because the best is also a 22 single it would have been tied first place.

 

[guysensei1]

FMC NR mean at Singapore 333 open! Here are my solutions, I dont have the actual scrambles so I just generated them on cube explorer. Any advice on how to improve?

Solve 1 (31)
Scramble: R' U' F L2 B L2 R2 B' F2 U2 B2 F2 U2 R' F L' F D' U' L' B2 U2 R' U' F

Spoiler

inverse:
D2 F B R' U R2//2x2x2 (6/6)
U2 B U B2 U' L2 B'//XXcross (7/13)
L' U' L//F2L-1 (3/16)
switch to normal:
R' U' R U' B U B'//F2L (7/23)
B U' B' U2 F' U B U' F B' U2 B U B' U'//COLL, EPLL skip (15/38)
7 moves cancel
Final: R' U' R U F' U B U' F B' U2 B U B' U' L' U L B L2 U B2 U' B' U2 R2 U' R B' F' D2 (31)

Solve 2 (33)
Scramble: R' U' F L D2 R' U2 B2 U2 L B2 D2 R' U B2 U' B F R' F' U' B2 U R' U' F

Spoiler

R2 L' U//1x2x2 (3/3)
switch to inverse,
L' U2 B D F D//2x2x3 (6/9)
D' L' D2 F2 D'//EO+unintended reduction to 2gen (5/14)
switch to normal:
F2 L2 F L F'//F2L-1 (5/19)
L2 F' L2 F L F' L2 F//complete F2L (8/27)
L2 U' L' U L' U' L2 U//sune, PLL skip (8/35)
2 moves cancel
Final: R2 L' U F2 L2 F L F' L2 F' L2 F L F' L2 F L2 U' L' U L' U' L2 U D F2 D2 L F' D' B' U2 L (33)

Solve 3 (31)
Scramble: R' U' F L2 B2 R2 U2 L2 B R2 B R2 U2 R' U2 R D2 F' D R B2 R2 B R' U' F

Spoiler

Inverse:
L B2 R2 F' U2//2x2x2 (5/5) I first found B2 R2 F' U2 as a 2x2x2 but I couldn't find a good continuation so I inserted an L move at the start
R' D B' R2 D B'//2x2x3 (6/11)
R D' R2//F2L-1 (3/14)
switch to normal:
D' R' D R//complete F2L (4/18)
F' D' R' D R F D'//3 corners (7/25)

Skeleton: D' R' D R F' D' R' D R F D' R2 D R' * B D' R2 B D' R U2 F R2 B2 L'
*= R F L F' R' F L' F', 2 moves cancel
Final: D' R' D R F' D' R' D R F D' R2 D F L F' R' F L' F' B D' R2 B D' R U2 F R2 B2 L' (31)
Insertion was optimal according to insertion finder

31 moves was NR single briefly, then a friend of mine somehow got a 28 on the last scramble. He or I should be posting that solution here soon.

EDIT: Here's the NR single solve (the important parts anyway) by Teo Bin Jie, done on the last solve.

Spoiler

B' U R U F D' R2//2x2x3 -1 edge (7/7)
B' U L U' L' B2 U'//2x2x3 (7/14) yep, you read that right, 7 moves to solve a piece.
switch to inverse,
L2 B2 D L D' B//3 corners (6/20)
He did not find an insertion that cancelled, so he inserted an 8 move commutator somewhere to solve the cube. 20+8=28 moves. Optimal was 26 though.

 

[gateway cuber]

I recently started doing FMC with roux it's kinda fun, right now my best is 37 moves, any tips?

 

[Rcuber123]

I recently started doing FMC with roux it's kinda fun, right now my best is 37 moves, any tips?

Try to not restrict yourself to a specific method. You will probably be better off with freestyle blockbuilding.
Also read sebastiens tutorial.