[Help Thread] FMC Discussion

[Attila]

@Attila , I don't understand the purpose of step 1? You don't seem to use it later on in your solution.

1st step : D' R B' U' B orient corners
2nd step: instead of D' R B' U' B, I do d M' D2 r B' U' B /U F' B R2 B L' D' L without rotations/ 4 edges solved,
3rd step: instead of ( F2 D R2 D' R2 U') , I do (F2 D R2 D' L2 U') save ce-pairs.

 

[Hssandwich]

1st step : D' R B' U' B orient corners
2nd step: instead of D' R B' U' B, I do d M' D2 r B' U' B /U F' B R2 B L' D' L without rotations/ 4 edges solved,
3rd step: instead of ( F2 D R2 D' R2 U') , I do (F2 D R2 D' L2 U') save ce-pairs.

Thank you! I didn't notice that.

 

[Neuro]

So I got a 12 move EO 2x2x3 but I have no idea how to finish the solve.

Scramble: B' D2 L2 U2 L2 F' D2 L2 B2 U R2 F R' B2 R2 D' U L2 U
Inverse: U' L2 U' D R2 B2 R F' R2 U' B2 L2 D2 F L2 U2 L2 D2 B

Using inverse: F' D' F//2x2x2 (kinda)
L2 D2 L2 B2 L' B//2x2x3
F D2 F'//EO

Anything is appreciated since I'm such a noob at this like I understand most everything but commutators and insertions elude me ATM

 

[sqAree]

switch to normal:
R D2 R' D2 R2 D //to last 5 corners in 18 moves total

InsertionFinder gives a 26. You should really look into insertions.

 

[Jake Donnelly]

I have got a 17 move f2l-1 but don't know how to finish the solve.

D2 premove

Scramble:B2 R' D2 F2 L2 D2 U2 L D2 U2 R2 F' R U2 L2 U B F' D' B2
Inverse scramble:B2 D F B' U' L2 U2 R' F R2 U2 D2 L' U2 D2 L2 F2 D2 R B2

Normal:B L B D' B'- pseudo 2x2x2
Inverse:R U' R' L2 U' L'- 2x2x3
Inverse:U' F L F L'- f2l-1

 

[Jaysammey777]

28 HTM
Scramble: L2 D L2 U F2 L2 D' R2 B2 U' R' D2 F D2 F2 R F' U2 R F'
Can anyone find something way good after the 6 move pseduo 2x2x3?

Spoiler: Pseudo 2x2x3

Scramble: L2 D L2 U F2 L2 D' R2 B2 U' R' D2 F D2 F2 R F' U2 R F'
I: Pseudo 2x2x2: D U R' (3/3)
I: Pseudo 2x2x3: L B2 U2 (3/6)

Spoiler: My Solution

Scramble: L2 D L2 U F2 L2 D' R2 B2 U' R' D2 F D2 F2 R F' U2 R F'
I: Pseudo 2x2x2: D U R' (3/3)
I: Pseudo 2x2x3: L B2 U2 (3/6)
N: Fix: F (1/7)
I: 1x2x2: L2 U' L' U (4/11)
I: 1x2x2 2: L B' L U B' U' (6/17)
I: AB3C: B' L U' L' U L (6/23)
Skeleton: F L' U' L U L' B U B U' L' B @ L' U' L U L2 U2 B2 L' R U' D'
Insert at @: B2 L' F' L B2 L' F L (8/31)
Cancellations: F L' U' L U L' B U B U' L' (B B2) L' F' L B2 L' F (L L') U' L U L2 U2 B2 L' R U' D' -3/28
Solution: F L' U' L U L' B U B U' L' B' L' F' L B2 L' F U' L U L2 U2 B2 L' R U' D'
28 HTM
Optimal Insertion Could have one for 29 with Nicolas at end of Inverse solution

 

[1973486]

28 HTM
Scramble: L2 D L2 U F2 L2 D' R2 B2 U' R' D2 F D2 F2 R F' U2 R F'
Can anyone find something way good after the 6 move pseduo 2x2x3?

On inverse:

Premove: L' F'

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

Skeleton (on normal): F L B' L B L' B L B' L' B' D' B D U' L' U B' L2 U2 B2 L' R U' D'

Optimal is only 33 and I don't know if the insertion is realistic

 

[Torch]

Hey guys, I found a few FMC solutions on my computer that I did last year. I doubt anyone can learn much of anything from them, since they're only ~30 move solutions, but I guess I might as well put them up here:

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

Spoiler

(U2 F2 U2 R')//2x2x2
F' L' F U//Square
B' U B' U B U B//F2L-1
L2 D L2 D' L' D L D'//L3E

Skeleton: F' L' F U B' U B' U B U B L2 D L2 D' L' D L D' [1] R U2 F2 U2

[1]: D' B D F B' L' B' L F' B

Solution: F' L' F U B' U B' U B U B L2 D L2 D' L' D L D2 B D F B' L' B' L F' B R U2 F2 U2 (32)

Scramble: D' B2 U B2 U R2 B2 L2 B2 D F' D U F R' D' R U2 L2 F'

Spoiler

U' L2//2x2x1
(U' F' U2)//2x2x2
(D' R2 D2 B2 D')//XXcross
(R' B' R2 B F' R F)//F2L-1
(R B' R' B)//F2L
(B' R' B R' B' R' F R' B R F' R2)//ZBLL

Solution: U' L2 R2 F R' B' R F' R B R B' R2 B R' F' R' F B' R2 B R D B2 D2 R2 D U2 F U (30)

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

Spoiler

R' F2 R U' F'//2x2x2
(B' D2 B D2)//Pseudo 2x2x3
B' D// Fix pseudo+EO
L' B L' B L B2 L'//L5C

Skeleton: R' F2 R U' [1] F' B' D L' B L' B L B2 L' D2 [2] B' D2 B

[1]: [U R U', L]
[2]: [D R2 D' L]

Solution: R' F2 R2 U' L U R' U' L' F' B' D L' B L' B L B2 L' D' R2 D' L D R2 D' L' B' D2 B

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

Spoiler

L2 B//Square
B L' B L2//2x2x2+preserve pair
F2 U' F U2 R2//2x2x3
R U2 R' U' F L' U L//F2L
(B L U L' U' B' U')//L3C

Skeleton: B L' B L2 [1] F2 U' F U2 R' U2 R' U' F L' U L U B U L U' L' B2 L2

[1]: [R' B2 R, F2]

Solution: B L' B L2 R' B2 R F2 R' B2 R U' F U2 R' U2 R' U' F L' U L U B U L U' L' B2 L2 (30)

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

Spoiler

(U2)//another pair
D' L' F' L' F2//2x2x2
(L D2 B2 D B)//2x2x3
F L F'//some EO
L2 B' L B//EO+blocks
D L D2 L2//2twisted

Skeleton: D' L' F' [1] L' F' L F' L2 B' L B D L D2 L2 B' D' B2 D2 L' U2

[1]: [F R F', L']

New skeleton: D' L' R F' L' F R' [2] F2 L F' L2 B' L B D L D2 L2 B' D' B2 D2 L' U2

[2]: [R' B2 R, F]

Solution: D' L' R F' L' F R2 B2 R F R' B2 R F L F' L2 B' L B D L D2 L2 B' D' B2 D2 L' U2 (30)

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

Spoiler

L' B2 L R' U' D' B2//2x2x2
R F'//2x2x3
(B R B')//pair
(F' R' F2 D2 F' R2 D)//L5C

Skeleton: L' B2 L R' [1] U' D' B2 R F' D' R2 F D2 F2 R F B R B'

[1]: [R D2 R', U']

New skeleton: L' B2 L D2 [2] R' U' R D2 R' D' B2 R F' D' R2 F D2 F2 R F B R B'

[2]: [D L2 D', R2]

Solution: L' B2 L D' L2 D' R2 D L2 D' R U' R D2 R' D' B2 R F' D' R2 F D2 F2 R F B R B' (29)

 

[Jaysammey777]

Classic City Shhhhh 2017 Round 1

Spoiler: Attempt 1: 27 Georgia State Record

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

1x2x2: U D' L (3/3)
2x2x2: (F) (1/4)
2x2x3: R2 D R2 B (4/8)
F2L: (F D F2 R2 F) (5/13)
AB3C: B' D2 B D R D R' B' D B (10/23)
Skeleton/Cancellations: U D' L * R2 D R2 (B B') D2 B D R D R' B' D B F' R2 F2 D' (F' F') (-3/20)
Insert at *: L U2 L' D2 L U2 L' D2 (8/28)
Cancellations: U D' (L L) U2 L' D2 L U2 L' D2 R2 D R2 D2 B D R D R' B' D B F' R2 F2 D' F2 (-1/27)

Final Solution: U D' L2 U2 L' D2 L U2 L' D2 R2 D R2 D2 B D R D R' B' D B F' R2 F2 D' F2 27 HTM
Notes: Started insertion at about 53m, optimal was 26.

Spoiler: Attempt 2: 32

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

Premove: B' (1/1)
2x2x3: L2 B F' U F D R' B2 U' B' (10/11)
F2L: F' R U R' L F L' F2 R U R' (11/22)
LL: B' U' R U B U' B' R' B U' (10/32)

Solution: L2 B F' U F D R' B2 U' B' F' R U R' L F L' F2 R U R' B' U' R U B U' B' R' B U' B'
Notes: had 44 with 57m and solved the cube with 2x2x3 and had this. Finished with 2s to spare.

Spoiler: Attempt 3: 31

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

2x2x2: U2 R' D R (4/4)
2x2x3: R D R' D2 B' F' D' F L2 (9/13)
AB3C: B' D B D B D B2 D B2 D' B' (11/24)
Skeleton/Cancellation: U2 R' D (R R) D R' D2 B' F' D' F L2 B' D B D B D B2 D B2 D' B' * (-1/23)

Insert at *: L U' L' D2 L U L' D2 (8/31)

Solution: U2 R' D R2 D R' D2 B' F' D' F L2 B' D B D B D B2 D B2 D' B' L U' L' D2 L U L' D2
Notes: Checked 4 times... Optimal...

Mean 30.00

It's sad how much practice I've put in to have poor time management, 0 5 corner insertions, not optimal insertions, no EO, and very basic solves . But I am very happy with 77 in the World

 

[Torch]

Here is my 29.33 official FMC mean from Classic City Shhhhh 2017, as well as my mom's 39.33 mean and my winning PyraFMC solve:

Spoiler: Raymond Goslow Solve 1

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

U L F D' F2//2x2x2
B2 R' B'//F2L minus 3 corners
F' R' U' R U F R2//L5C

Skeleton: U L F D' F2 B2 R' [1] B' F' R' U' R U F R2

[1]: [L, B' R B]

New skeleton: U L F D' F2 B2 R' L B' R B L' [2] B' R' F' R' U' R U F R2

[2]: [L2, F R2 F']

Solution: U L F D' F2 B2 R' L B' R B L F R2 F' L2 F R2 F' B' R' F' R' U' R U F R2 (28)

Optimal for that skeleton is 25, but I'm bad at insertions and didn't have much time left

Spoiler: Raymond Goslow Solve 2

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

R//3 pairs
(D L)// 2x2x1
L2 B'// 2x2x2
R2 U' R U2//2x2x3
(R F R' F R F' R')//F2L-1
(F U F' U' F2 U F2 U')//OLS
(U F2 U' F' U F2 D' F U' F' D F')//PLL

Solution: R L2 B' R2 U' R U2 F D' F U F' D F2 U' F' U F U' F' R F R' F' R F' R' L' D' (29)

Spoiler: Raymond Goslow Solve 3

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

U F2 U B'//2x2x2
D F D' F' L2//XXCross
F D' F' L' D' L D' R' D R//F2L
B' D' B' L B L' B D' B' D2 B D2//LL

Solution: U F2 U B' D F D' F' L2 F D' F' L' D' L D' R' D R B' D' B' L B L' B D' B' D2 B D2 (31)

I also found this skeleton, which has 27 optimal:

U F2 U B'//2x2x2
D L2 F2 L' F2//2x2x3
B' L' B2 D' B' D//F2L-1
D' L' D L2//L5C

Skeleton: U F2 U B' D L2 F2 L' F2 B' L' B2 D' B' L' D L2

Spoiler: Cari Goslow Solve 1

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

U L B F D' F2//XCross
U' R U R D' R' D//2nd pair
(U R2 U' R U R U')//3rd pair
R' U' R' U//F2L
(B' D' R' D R B)//EO
(B R B' R B R2 B')//CO
(R2)//PLL

Solution: U L B F D' F2 U' R U R D' R' D R' U' R' U R2 B R2 B' R' B R' B2 R' D' R D B U R' U' R' U R2 U' (37)

Spoiler: Cari Goslow Solve 2

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

B2 U' L2 R U' R2 B' U2//2x2x2
D F2 D2 F R' D//2x2x3
F R2//XXCross
(D' F2 D)//3rd pair
(F U F U')//F2L
R F U F' U' R'//EO
U F U' F U F2 U'//CO
U L' U R2 U' L U R2 U2 F2//PLL

Solution: B2 U' L2 R U' R2 B' U2 D F2 D2 F R' D F R' F U F' U' R' U F U' F U F2 L' U R2 U' L U R2 U2 F2 U F' U' F' D' F2 D (43)

Spoiler: Cari Goslow Solve 3

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

U2 R' D R//2x2x2
L2 U B' U' B2 U' L2 U D'//XXCross
(B' R' B2 R B2 L B L')//3rd pair
(D B2 D' B D' R D R')//F2L+OLL
(R' U R' D2 R U' R' D2 R2 B)//PLL

Solution: U2 R' D R L2 U B' U' B2 U' L2 U D' B' R2 D2 R U R' D2 R U' R2 D' R' D B' D B2 D' L B' L' B2 R' B2 R B (38)

Spoiler: Pyraminx FMC

Scramble: B' L B' L' R B' R' L B L' R B' U R B R L' U l b

R L U R'//layer
R B' L B L' B R' B//2 flip
l' b'//tips

Solution: R L U B' L B L' B R' B l' b' (12)

 

[T1_M0]

Some solves, tips would also be nice

Spoiler: Helsinki Side Events 2017, #1

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

Inverse:
D L R2 B' (2x2x2, premove R')
U' F2 U (2x2x3, premove F2)
Switch to normal:
D B' L B L2 (All but 3E & 4C)

Skeleton:
R F2 D @ B' L B L2 U' F2 U B R2 L' D'

Corner insertions:
@ D' L2 D R D' L2 ¤ D R' (2 moves cancel)
¤ L' U L D2 L' U' L D2 (2 moves cancel)

New skeleton:
R F2 L2 D R D' L U L D2 L' U' L D' % R' B' L B L2 U' F2 U B R2 L' D'
Edge insertion:
% D' L' U' D F D F' D' U L (1 move cancel)

Result: 35
After my 2x2x3, I had f2l-1 1 move away when switching to normal. My insertions suck.

I can't even remember my #2 solution, as I've not marked it clearly to my sketch paper. It was 42 moves, G-perm ending, really bad.

Spoiler: Helsinki Side Events 2017, #3

My worst moment so far, I dnf:ed by writing the last move in inverse.

Scramble: R' U' F R2 D' U' B2 D2 U' L2 F R' D' U L' D U' B R' B' R' U' R' U' F

L' U' L F2 (2x2x2)
U' R' U B2 U' R2 U R2 (2x2x3)
L' B L B' R' U2 R U' (F2L, premove U)
U B R B' R' U' (OLL, 2 moves cancel)
B' (AUF)
L U' L D2 L' U L D2 L2 (A-perm)

Solution: L' U' L F2 U' R' U B2 U' R2 U R2 L' B L B' R' U2 R B R B' R' U' B' L U' L D2 L' U L D2 L2 U
Result: 35 (if premove is written right )
Time ran out, by inserting the A-perm, it had been so much better. And yeah, I wrote the premove as U' to the end, and messed up execution when checking that everything is right.

Spoiler: ocf.berkeley.edu Weekly FMC, #180

Scramble: R' F L' D' U2 F2 R U2 L2 F' B' R F' U' L' B F2 L B' U

Normal:
U' F' U F' R' F R (2x2x2)
F L U' F U (pseudo 2x2x3)
Inverse:
F (premove for 2x2x3)
L' D L' (F2L-1)
Normal:
D2 B D2 B' (F2L)
B R D R' D' B' D (OLL, 2 moves cancel, PLL skip)

Solution: U' F' U F' R' F R F L U' F U D2 B D2 R D R' D' B' D L D' L F'
Result: 25
The absolute luckiest solve ever for me, PB by 8 moves. I'm seriously feeling like burying insertions and starting to use oll-pll exclusively (insertions if I find a U- or A-perm)

 

[Hssandwich]

Tied PB mean, 24.00!

26: U D2 R' D B U F2 L' U2 R F2 U' F2 U B2 R2 D L2 U' F2 L2

Spoiler

(L D') //pseudo 222
F2 L' F //another
R U2 //pseudo 223
(U F L') //F2L-1
(D F D' F2) //leave 3c+1twisted in 14

Skeleton: F2 L' F @ R U2 F2 D F' D' L F' U' D L'
@F2 R B' R' * F2 R B R' (3)
*D2 F U2 F' D2 F U2 F' (1)
26 moves
Unlucky insertions Optimal was 25, but using nested insertions. Pretty lucky skeleton made up for it though.

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

Spoiler

(U F L') //square
R2 F2 D //WOAH PSEUDO F2L-1
(U' B2) //leave 3c4e

Skeleton: £ R2 F2 D B2 U L F' @ U'
£ U2 R L F B U2 F' B' L' R' (1)
@F' U B2 U' F U B2 U' (2)
23 Moves

Although the majority of this solve is complete luck, I'm slightly annoyed at the insertions. If I had done the 2-2 cycle F' L2 U2 L2 U2 L2 U2 F at £, which is 8 moves AND cancels a move, I would have got 21, tied PB, and a 23.33 mean

23: R2 B D2 F2 R2 F D2 B F2 R F R2 U F2 L2 D F D' U2 L'

Spoiler

L' U //square
(R2 D2 F L' U' R' F2) //222 + roux block
(U2 L') L2 //F2L-1
U' B' U B U' B' D B' U B D' // finish!
23 Moves

Pretty lucky ending, effectively a niklas with 5 moves cancelling

Also:
@Torch
Skeleton: @ R' B' U R L //3 edges
@ U B U' B'
=9 moves + 2 tips = 11 moves

 

[Cale S]

kind of funny solution for weekly German comp

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

Spoiler

(B' D2 B2) // Square
(F R F' U2 F U' F') // Layer
(F R' F' R F' U' F U) // L6E

U' F' U F R' F R U F' U2 F R' ^ F' B2 D2 B
^ = [R' B' R, S2]

U' F' U F R' F R U F' U2 F R2 B' R B2 @ F2 L' B L F D2 B
@ = D F' B R2 B' F D

Solution: U' F' U F R' F R U F' U2 F R2 B' R B2 D F' B R2 B' F D F2 L' B L F D2 B
29 moves


starting by building a layer is funny, and Insertion Finder not finding anything better is cool

did 2 means over the past few days, both were 29, 25, 32 in that order lol (I also have two official 28.67 means and one was 25, 32, 29)

 

[Theo Leinad]

Hey people,
I need a lot of help here...
Is there a guide or something to have EO for all cases when you have F2L-1?
Can someone write down all the cases to have the cross on top oriented?

Will appreciate that like TONS of cubies...
How many cases would that be ?

 

[Jaysammey777]

Hey people,
I need a lot of help here...
Is there a guide or something to have EO for all cases when you have F2L-1?
Can someone write down all the cases to have the cross on top oriented?

Will appreciate that like TONS of cubies...
How many cases would that be ?

You can either do it at the beginning of the solve, in the middle, or after doing 2x2x3. Some solves require different things. There's not real algorithms but rather just understanding how eo works. If you learn how Petrus does it then that would work for after the 2x2x3, if you learn how zz works then you can do eo at the beginning.

 

[Theo Leinad]

You can either do it at the beginning of the solve, in the middle, or after doing 2x2x3. Some solves require different things. There's not real algorithms but rather just understanding how eo works. If you learn how Petrus does it then that would work for after the 2x2x3, if you learn how zz works then you can do eo at the beginning.

Hey sammey,
I do understand and k ow those cases, I just need help to develop this at the F2L-1 stage, would that be hard?

I thinks is easier this way, perhaps doing like petrus is good enough as well, but just want to minimize the cases...
Thank you

 

[Theo Leinad]

Last weekend, I got an official 23 move solution at Please Be Quiet WPI

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

inv.
U' R' // 2x2x1
F' B R' B2 // 2x2x2
U B L2 B' L // 2x2x3
L' U2 L // EO
U2 F U2 F U' // a bunch of pieces

Skeleton: U F' U2 F' U2 L' [@1] U2 B L2 B' U' B2 R B' F R U

Insert at [@1]: B D B' [@2] U2 B D' B'
Insert at [@2]: B Dw2 D2 B' U2 B Dw2 D2 B' U2

Final solution: U F' U2 F' U2 L' B Dw2 D' B' U2 B Dw2 D L2 B' U' B2 R B' F R U

I got this far:

B' R B2 L D' R (2x2x2) x6
U2 F L B' U2 B U' F2 (F2L-1) x8
U F R U (F2L) x4
B U B' U' B U B' U' R' U' (L4C) x10

I'll check insertion finder, however, I don't know how to do this insertions yet
18 moves for an F2L is good or bad ?...
I'm guessing 40 moves after insertion finder...
Any spots where I can improve this skeleton ?

 

[T1_M0]

I got this far:

B' R B2 L D' R (2x2x2) x6
U2 F L B' U2 B U' F2 (F2L-1) x8
U F R U (F2L) x4
B U B' U' B U B' U' R' U' (L4C) x10

I'll check insertion finder, however, I don't know how to do this insertions yet
18 moves for an F2L is good or bad ?...
I'm guessing 40 moves after insertion finder...
Any spots where I can improve this skeleton ?

If you finish your F2L with R' and then AUF with U, you end up with edge cycle which you can probably solve with fewer moves than the current 10. But yeah, insertion finder gave 33 with your ending and 32 with mine, so that's not very big difference (when doing, it just takes maybe more time to find a proper insertion).

I wanna learn to find these 10-15 move cancellations which the insertion finder finds .

 

[Hssandwich]

22 for the current Weekly FMC (181)

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

Spoiler

R U B' //square with inserted R move
D2 L' D R2 //2x2x2 + pairs
B' R B R' //square
U2 L2 U' B2 L * B2 L' //leave 3c

*L' B R B' L B R' B' (4 cancel)
=22 moves

 

[T1_M0]

Oh, nice. I was 2nd in last week's Weekly FMC. I'm always almost the last.