[Help Thread] FMC Discussion

[Duncan Bannon]

@Neuro I'm definitely not great at FMC. But you could get an Ab3c in 24 moves by doing B2 U B2 U' B' U' B U2 B' U2 B U' B' U2

 

[ChrisCuber123]

I don’t really like L5C lol

Good luck getting better at FMC then.

Just do the 15 moves to L5C, that's a pretty good skeleton and optimal insertions should give around a 26

EDIT: Just checked Insertion Finder and optimal for your skeleton is 23, insertions cancel 5 and 3

 

[BenBergen]

Just dropped my PB from 28 to 22 with this:

R' U' F R2 B' U2 F2 L2 B' R2 F' D2 F R2 U B2 R' F R' U2 F D B' R' U' F

Spoiler: Solution

U L2 F2 D2 // 2x2x2
B2 U' F * U' F' U // pseudo F2L-1 (premove L2)
B2 L B2 L' B' // AB5C
L2 // correct premove

At * - B2 U' F' ** U B2 U' F U (cancels 8 )

At ** - F' D F U' F' D' F U (cancels 2)

AB5C in 16 moves, then some ridiculous insertions

 

[DGCubes]

Just got a pretty cool solution with some reverse NISS and lucky insertions.

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

Spoiler: solution

B' U2 B L2 F // pseudo 2x2x2
B L2 // pseudo 2x2x3 - 1 edge
(F' U' L2 U) // 2x2x3
(D2) // 1x2x2 block
(B2 R D' R' B' D2) // AB3E and twisted 3C

Skeleton (18 to 3E and twisted 3C): B' U2 B L2 F B L2 D2 B * R D R' B2 D2 U' L2 U F
* = B R' B' R (cancels 2)

New skeleton (20 to 4C): B' U2 B L2 F @ B L2 D2 B2 R' B' $ R2 D R' B2 D2 U' L2 U F
@ = R2 B L2 B' R2 B L2 B' (cancels 4)
$ = D L D' R2 D L' D' R2 (cancels 4 again!)

Solution (28): B' U2 B L2 F R2 B L2 B' R2 B D2 B2 R' B' D L D' R2 D L' R' B2 D2 U' L2 U F

 

[bubbagrub]

Just got a pretty cool solution with some reverse NISS and lucky insertions.
[/SPOILER]

Nice solve! I'm probably being dense, but isn't this just normal NISS rather than reverse NISS...?

 

[DGCubes]

Nice solve! I'm probably being dense, but isn't this just normal NISS rather than reverse NISS...?

Thanks! And yeah, there's regular NISS in the first skeleton, but the B R' B' R insertion is reverse NISS.

 

[DGCubes]

I got another really nice solution with reverse NISS! It's such a cool concept; I used it in 3 of my last 5 solves since I found out about it.

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

Spoiler: solution

L' B' // 1x2x2
(L D2) // 2x2x2
(R2 U2 R U R2) // 2x2x3
(L F' L') // pseudo F2L-1
F U' // AB4E5C

Skeleton (14 to 4E5C): L' B' F * U' L F L' R2 U' R' U2 R2 D2 L'
* = F U2 F' // solve an edge
L U F U' F' L' U // solve L3E + 1 corner
(cancels 7)

New skeleton (17 to 4C): L' B' F2 U2 F' L U F $ U' L' R2 U' R' U2 @ R2 D2 L'
$ = F' D F U' F' D' F U (cancels 4)
@ = U L U' R' U L' U' R (cancels 2)

Solution (27): L' B' F2 U2 F' L U D F U' F' D' F L' R2 U' R' U' L U' R' U L' U' R' D2 L'

 

[BQ]

Just got a pretty cool solution with some reverse NISS and lucky insertions.

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

Spoiler: solution

B' U2 B L2 F // pseudo 2x2x2
B L2 // pseudo 2x2x3 - 1 edge
(F' U' L2 U) // 2x2x3
(D2) // 1x2x2 block
(B2 R D' R' B' D2) // AB3E and twisted 3C

Skeleton (18 to 3E and twisted 3C): B' U2 B L2 F B L2 D2 B * R D R' B2 D2 U' L2 U F
* = B R' B' R (cancels 2)

New skeleton (20 to 4C): B' U2 B L2 F @ B L2 D2 B2 R' B' $ R2 D R' B2 D2 U' L2 U F
@ = R2 B L2 B' R2 B L2 B' (cancels 4)
$ = D L D' R2 D L' D' R2 (cancels 4 again!)

Solution (28): B' U2 B L2 F R2 B L2 B' R2 B D2 B2 R' B' D L D' R2 D L' R' B2 D2 U' L2 U F

Did you try to insert a sune or anti-sune or fat-sune?

 

[DGCubes]

Did you try to insert a sune or anti-sune or fat-sune?

I didn't try that in this one, I just went with a sledge to solve L3E. That's really smart though, especially considering the twisted 3C.

The best I could find was B2 L B L' B L B2 L' at the same spot which leads to 3E in 25 moves, with a 32 move optimal solution. There are probably better places to insert it though, so definitely something I'll keep in mind for future attempts. Thanks for the suggestion!

 

[BQ]

In the same spot, you can insert this:
setup: B' L' Bw'
fat-sune: Bw L B' L B L2 Bw' L2
reverse: Bw L B
2*3 moves setup + 8 moves fat-sune - 6 moves cancellation = 8 moves to solve the 3E3C

 

[BQ]

I didn't try that in this one, I just went with a sledge to solve L3E. That's really smart though, especially considering the twisted 3C.

The best I could find was B2 L B L' B L B2 L' at the same spot which leads to 3E in 25 moves, with a 32 move optimal solution. There are probably better places to insert it though, so definitely something I'll keep in mind for future attempts. Thanks for the suggestion!

See the above insertion.

 

[DGCubes]

In the same spot, you can insert this:
setup: B' L' Bw'
fat-sune: Bw L B' L B L2 Bw' L2
reverse: Bw L B
2*3 moves setup + 8 moves fat-sune - 6 moves cancellation = 8 moves to solve the 3E3C

Ooh, very cool. I think it should be D2 instead of L2 at the end of the fat sune though.

 

[BQ]

Ooh, very cool. I think it should be D2 instead of L2 at the end of the fat sune though.

It's L2 because I wrote Bw instead of F.

 

[Cale S]

27.33 official mean, first place in round 1 of Mental Breakdown MN

Spoiler: 27

1. R' U' F D2 R2 U F2 D' U2 B2 D R' B2 D' L2 R' U2 B2 R2 B U R' U' F

(D2 L' F2) // 1x2x3
(B D R') B' L2 // 2x2x3
U2 B2 U L U2 L' U' B // 16 to 3e3c

B' L2 U2 B2 U L U2 L' U' B @ R D' ^ B' F2 L D2
@ = B' U' B U F' B L' B' L F
^ = [D, R' U R]

Solution: B' L2 U2 B2 U L U2 L' U2 B U F' B L' B' L F U R D' R' U' R B' F2 L D2 (27)

Spoiler: 25

2. R' U' F U2 L2 R2 B2 D U B2 D' B' L' F R2 B' R2 D' L B2 R F' R' U' F

B U2 R2 U' // EO + square
(L F' L' R2) // stuff
(D2 B R' B R B D2 B') // 16 to 3e3c (again!)

B ^ U2 R2 U' B D2 B' R' B' R B' D2 R2 L F L'
^ = F' L2 F' R' B D2 B' R F2 // nice inserted ZBLL

Solution: B F' L2 F' R' B D2 B' R F2 U2 R2 U' B D2 B' R' B' R B' D2 R2 L F L' (25)

Spoiler: 30

3. R' U' F D2 F2 L2 U R2 B2 F2 U2 B' F' D B2 U L' U F D' U2 L U R' U' F

(D2) // pear
(L R D' F' R') // 2x2x2
(U2 L2 U) U' // 2x2x3
(L' D F D' L2) // F2L - 1
(F' D F2 D2 L D L' F) // 23 to 3e

U' F' L D' L' D2 F2 D' F @ L2 D F' D' L U' L2 U2 R F D R' L' D2
@ = F' U D' L D L' U' D F D'

Solution: U' F' L D' L' D2 F2 D2 U L D L' U' D F D' L2 D F' D' L U' L2 U2 R F D R' L' D2 (30)

 

[cubeshepherd]

Yes! I just got a new single PB for FMC, and it is 26 moves I got it for the weekly competition, and I have to say that I wish all scrambles were like this one I really like the fact that I was able to get to AB4C3E in 19 moves and the fact that I was able to cancel 9 moves in 2 out of the 3 insertions. I just wish that my 2nd insertion was better, but all in all it is a good solve for me.

Spoiler: 26 FMC Solution

Scramble: R' U' F D2 B2 R2 D2 B U2 B' D2 U2 B' D2 R B R U' L D2 L R' F L' R' U' F

R' L U F D L' F2 L B L2 - 2x2x3 [10/10]
R' F U F R F' R' U' R2 - AB4C3E [9/19]

1st Skeleton - R' L U F D $ L' F2 L B L2 R' F U F R F' R' U' R2
Insert at $ B L' F2 L B' L' F2 L (Cancels 9 moves) Really Good

2nd Skeleton - R' L U F D B % L' F2 L' R' F U F R F' R' U' R2
Insert at % B2 D F2 D' B2 D F2 D' (cancels 1 move) Really Bad

3rd Skeleton - R' L U F D B' D F2 D' & B2 D F2 D' L' F2 L' R' F U F R F' R' U' R2
Insert at & D F2 D' F' B R F2 R' F B' (Cancels 9 moves) Again, Really Good!

Final solution -
R' L U F D F' R F2 R' F B D F2 D' L' F2 L' R' F U F R F' R' U' R2 (26 moves)

I have been practicing FMC a lot recently, and not many other events, but since Nationals is only a few weeks away, I think that I should now focus on the events that I will be doing at Nationals. After Nationals I think that I will try to get back into FMC, because I am really enjoying it.

 

[coldsun0630]

A scramble from Dadams. Done at July 3rd, but forgot to submit. Using only A B A' (except for very first and last part) was intended.

Scramble: R' L' D' U' B2 F' L R U2 F2 B' R' B' L U2 D' L R' F' L

Spoiler: Solution

B F' L2 U B' // 2x2x2 (6/6)
L U2 L' // build lDF, orient bLU (4/10)
R U' R' // orient UB (3/13)
U' F2 U // build bDL, orient lDF (4/17)
F' U F // orient dRF (3/20)
F U' F' // build dFL, orient bDL (3/23)
U2 L U2 // build fRU (5/28)
U' L' U L U2 // finish (3/31)

31q, 26h

 

[bubbagrub]

A scramble from Dadams. Done at July 3rd, but forgot to submit. Using only A B A' (except for very first and last part) was intended.

Scramble: R' L' D' U' B2 F' L R U2 F2 B' R' B' L U2 D' L R' F' L

Spoiler: Solution

B F' L2 U B' // 2x2x2 (6/6)
L U2 L' // build lDF, orient bLU (4/10)
R U' R' // orient UB (3/13)
U' F2 U // build bDL, orient lDF (4/17)
F' U F // orient dRF (3/20)
F U' F' // build dFL, orient bDL (3/23)
U2 L U2 // build fRU (5/28)
U' L' U L U2 // finish (3/31)

31q, 26h

So what's the idea behind the ABA' structure...? Was it just something you wanted to try, or is it a particular method...?

 

[coldsun0630]

So what's the idea behind the ABA' structure...? Was it just something you wanted to try, or is it a particular method...?

This was just one of my experiments. The idea was come while guessing about DeepCube's method.

 

[BQ]

My 26.00 solutions for Wuxi Try to Get a Mean 2018 final round.

1. Scramble: R' U' F D2 L2 F2 D2 B2 U' R2 U L2 F D R' D' U2 F' L F U R B' R' U' F

Spoiler

Pseudo F2L-1: R2 L' U' R' D R D2 B R B
L2E2C: U B U2 B' U2 R' U
PLL: U' R U' R' F' U' F2 R' F' R F' U F U

Solution: R2 L' U' R' D R D2 B R B U B U2 B' U R' F' U' F2 R' F' R F' U F U (26f)

2. Scramble: R' U' F D2 R2 B2 U L2 U' F2 U L D U' F' D F' U2 L D2 R' U' F

Spoiler

223: U L B R D F @ R' D' F2 U'
L3C: B2 L B' L' D' B'
Insert at @: F' L' F R' F' L F R

Solution: U L B R D L' F R' F' L F D' F2 U' B2 L B' L' D' B' (20f)

3. Scramble: R' U' F R2 U2 B' U2 B2 U2 L2 F2 U2 R B F2 D' R2 B' F2 D2 F' D R' U R' U' F

Spoiler

This scramble is very hard for me. I only found a 32 moves solution.

 

[1973486]

3. Scramble: R' U' F R2 U2 B' U2 B2 U2 L2 F2 U2 R B F2 D' R2 B' F2 D2 F' D R' U R' U' F

(D) U' R B' D // 222
(F' R2) // 223

Good start, not sure about ending. Found 14 move F2L+EO with U2 R U' R2 F2 R U but the ZBLL is bad

If you did somehow know the optimal alg which cancels (U' F2 L' U B' R' U R B L' D' L' D L') you could get a 26