[Help Thread] FMC Discussion

tseitsei · Jan 10, 2016

guysensei1 said:
L B R2 U' R2 L F2 U' B' U' L2 U' R2 U L2 D' R2 B2 R2 U2

L D R' D R//2x2x2
B U' B U' L2//2x2x3
R' U R L' B2 L //F2L-1
U B' U2 B //3 pairs unsolved
F' U L U L' U' F U2//WV alg and PLL skip

28 moves, cool solve

EDIT: lmao using insertion finder to solve the 3 pairs cancels to the WV alg anyway

L D R' D R B U' B U' L2 R' U R L' B2 L U B' U2 B [@1] U'
Insert at @1: F' D F U F' D' F U'
After the 1st insertion: L D R' D R B U' B U' L2 R' U R L' B2 L U B' U2 B F' D F U F' D' [@2] F U2
Insert at @2: D F U' F' U D' L U L' U'
Fewest moves: 28. 11 moves cancelled
The final solution: L D R' D R B U' B U' L2 R' U R L' B2 L U B' U2 B F' U L U L' U' F U2

That WV alg you used is actually just a pure 8-move pair commutator [F' Dw F : U]

Those are quite handy sometimes

Berd · Jan 10, 2016

Just did and FMC, got a 12 move 2x2x3, then the final solution was a 49

. I'll post in a sec, I need some tips!

EDIT:

F L F' D B' U2 R2 B F' L' F R // 2X2X3 U B U' B2 U' B U B' U' B2 U B // F2L-1U R B' R' U' R' U R B // F2L + CPR U R' U R U2 R U' F B' R2 F' B U' R2 U2 // LL

The good bit:

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

2x2x3: F L F' D B' U2 R2 B F' L' F R

Where to continue?

Cale S · Jan 10, 2016

Berd said:
Just did and FMC, got a 12 move 2x2x3, then the final solution was a 49 . I'll post in a sec, I need some tips!

EDIT:

F L F' D B' U2 R2 B F' L' F R // 2X2X3 U B U' B2 U' B U B' U' B2 U B // F2L-1U R B' R' U' R' U R B // F2L + CPR U R' U R U2 R U' F B' R2 F' B U' R2 U2 // LL

The good bit:

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

2x2x3: F L F' D B' U2 R2 B F' L' F R

Where to continue?

B2 L U' L' // square
U B' U' B U L' B2 U' B U L // to L3C

skeleton: F L F' D B' U2 R2 B F' L' F @ R B2 L U' L' U B' U' B U L' B2 U' B U L
@ = [F' L2 F, R']

Final solution: F L F' D B' U2 R2 B F' L F R' F' L2 F R2 B2 L U' L' U B' U' B U L' B2 U' B U L (31)

G2013 · Jan 10, 2016

Berd said:
Just did and FMC, got a 12 move 2x2x3, then the final solution was a 49 . I'll post in a sec, I need some tips!

EDIT:

F L F' D B' U2 R2 B F' L' F R // 2X2X3 U B U' B2 U' B U B' U' B2 U B // F2L-1U R B' R' U' R' U R B // F2L + CPR U R' U R U2 R U' F B' R2 F' B U' R2 U2 // LL

The good bit:

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

2x2x3: F L F' D B' U2 R2 B F' L' F R

Where to continue?

D F' R L B F R U2 R' is a shorter 2x2x3

xyzzy · Jan 11, 2016

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

2x2x3: F L F' D B' U2 R2 B F' L' F R

Where to continue?

(Sorry for the incoming wall of text!)

The F' L' F and R ending of your 2x2x3 can be swapped without affecting the 2x2x3, so that provides an alternative when you're stuck.

F L F' D B' U2 R2 B R F' L' F // 2x2x3 (12)
B2 U' B2 U B2 U' B' U2 B' U' // slot, trying to keep the other c/e pieces pairable (10/22)
B' L' B' L // F2L (4/26)
L B' R' B L' B' R // L3C (6/32)

Even without changing the block (and without making use of pseudoblocks), there are two ways to expand the 2x2x3 into F2L, so explore the other direction too. There's most likely a better insertion than finishing with an A perm here, but this is just for illustrative purposes.

F L F' D B' U2 R2 B F' L' F R // 2x2x3 (12)
B2 U2 B2 U B U' B U2 // slot (8/20)
B U B' U' B L' B L // EO+F2L, OLL skip! (8/28)
L2 U2 L D L' U2 L D' L B // PLL/L3C (9/37)

And even if we want to stick to the same F2L-1, corner permutation is a relatively useless step unless you're doing linear FMC and you know most of the optimal 2GLL algs, or if you get the seven-move Sune. If you try to solve CP together with F2L (using CPLS, ZZ-d, etc.), this also prevents you from using a single corner 3-cycle insertion because all corner 3-cycles affect CP. Again, this example solve might have a better insertion.

F L F' D B' U2 R2 B F' L' F R // 2x2x3 (12)
U B U' B2 U' B U B' U' B2 U B // F2L-1 (12/24)
U' R' U2 R U // F2L (5/29)
L U' R' U L' U' R B' U' B U' B' U2 B // 22LL (14/43)

Sebastien · Jan 11, 2016

Since I wasn't able to achieve cool FMC single records recently, I will just try to brag with another achievement I was quite happy about to reach this past competition weekend.

26, 27, (22), 23, 28, 26, 26, 27, (29), 24, 24, 24 = 25,5 average of 12 from official solves

sqAree · Jan 12, 2016

So I competed in FMC at Cubelonia and I'm pretty proud of my results given that it was the first time in my life I did FMC for 3x3. Nonetheless tips are appreciated.

1st scramble: B U2 F U2 F2 D2 F' U2 L2 F' D R F U2 L2 R2 U' F' L2

F' B' U2 //2x2x1 + pair
F2 U' F2 //2x2x2 + preserve pair
F L' B' L F' L' //another 2x2x2 using the pair
R D R' D' B' D B //F2L-1
D2 L D L' D' F' D F //F2L with insert that gives me the most easy OLL
F L D L' D' F' //OLL
D2 L' D' L B2 U R' D R D' R U' B2 //PLL

final solution: F' B' U2 F2 U' F' L' B' L F' L' R D R' D' B' D B D2 L D L' D' F' D F2 L D L' D' F' D2 L' D' L B2 U R' D R D' R U' B2 (44 moves)

2nd scramble: L2 F2 U' B2 D' U2 F2 U R2 U' B2 F R B R B' L R2 B F2

D' L' R' D' U F U' F' //2x2x2
U B R B R2 B' U2 //2x2x3
B2 D B' D' R B2 R' //F2L-1
B D B' D' //pair
B2 D B2 D' //F2L with OLL I know and that is short
L B L' B' L' D L D' //OLL
R B' R B R B R B' R' B' R2 B //PLL

final solution: D' L' R' D' U F U' F' U B R B R2 B' U2 B2 D B' D' R B2 R' B D B' D' B2 D B2 D' L B L' B' L' D L D' R B' R B R B R B' R' B' R2 B (50 moves)

3rd scramble: L2 D2 B2 F' R2 F' U2 B' F2 L' D2 U B F' D L2 R' D' L U2

B R' B2 R' //2x2x1 + pair
F U F2 //2x2x2 + preserve pair
R2 D B' R2 B2 R' //2x2x3 + pair
B' D B D2 B' D2 //F2L-1
B' D B D' //pair
B' D B2 D' //F2L (with B D' R D R' I could have had better OLL but G instead of A perm)
D B D' B' D' R D R' //OLL
R' U R' D2 R U' R' D2 R2 //PLL

final solution: B R' B2 R' F U F2 R2 D B' R2 B2 R' B' D B D2 B' D2 B' D B D' B' D B' D' B' D' R D R2 U R' D2 R U' R' D2 R2 (40 moves)

penguinz7 · Jan 12, 2016

sqAree said:
So I competed in FMC at Cubelonia and I'm pretty proud of my results given that it was the first time in my life I did FMC for 3x3. Nonetheless tips are appreciated.

[/SPOILER]

Tip 1: Don't do OLL/PLL. Unless you get a skip.

Tip 2: This

sqAree · Jan 12, 2016

I'm reading it atm, was hoping for more scramble-specific tips. ^^

JamesDanko · Jan 13, 2016

sqAree said:
R B' R B R B R B' R' B' R2 B //PLL

F2 U' L R' F2 L' R U' F2

The U' moves can be substituted with U moves.

sqAree · Jan 14, 2016

JamesDanko said:
F2 U' L R' F2 L' R U' F2

The U' moves can be substituted with U moves.

Thanks, that's helpful!

irontwig · Jan 14, 2016

sqAree said:
I'm reading it atm, was hoping for more scramble-specific tips. ^^

Just in case you'd get the same scramble(s) again?

sqAree · Jan 14, 2016

irontwig said:
Just in case you'd get the same scramble(s) again?

My solution is obviously included when I talk about "scramble-specific". It's not like no one ever gave tips to people and improved their solutions, in any event.

Keroma12 · Jan 14, 2016

From the weekly competition, week 2 (this week). I was wondering if there is a nice way to finish this:

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

cross + edge: (F L2 U') (3/3)
corresponding corner: (R' B L B') (4/7)
another corner: (D L D') (3/10)
and it's edge: (L R B L' B' R2) (6/16)

Played around from here a lot, didn't find anything I could use. The following gives a Z-perm:
(D L' D2 L D2 F' D' F) (8/24)

(I initial had found a different 36 move solution, ended up using that.)

porkynator · Jan 17, 2016

I got the usual "You have already submitted a solution" error on the weekly FMC website. I'm posting it here.

Scramble (warning: competition in progress!): B' U F R' L U R2 D' U' R D2 F R' D' B R L2 F B2 L

Solution: R D F R U' R' U' F' D' F2 D R' D2 R F R F' U2 B' U' D L2 U D' (24 HTM)

Backup solution (26 HTM)
R F R U' R' //2x2x1 + pairs (5/5)
(B' U2 R') //Pseudo 2x2x3 + 2x2x1 (3/8)
U' F2 //F2L-1 (2/10)
F L' F' L //EO + 2x2x1 (3/13)
D2 L D L' //F2L (4/17)
D' R' D2 R' U' L B2 L' U R2 //LL, 1 move cancels with premoves (9/26)

Actual solution
R D F R U' R' //2x2x1 + pairs (6/6)
(B' U2 F R' F') //Pseudo 2x2x3 + pairs (5/11)
(R' D2 R) //2x2x1 (3/14)
(D' F2 D F U) //All but 3 edges (5/19)

Skeleton:
R D F R U' R' U' F' D' F2 D R' D2 R F R F' U2 B *
* = B2 U' D L2 U D' (5/24)

CyanSandwich · Jan 20, 2016

30.4 ao12 - 30, 32, 32, 29, 36, 26, 33, 29, 30, 32, 32, 27
Hopefully I can roll it to sub-30.

The 27 was pretty interesting.

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

L2 B' L F //2 squares (4/4)
B2 L' F L2 B2 //2x2x3 (5/9)
(U' F' U' F2 R2 F' R') //F2L-1 (7/16)
F' U' F U R U2 R' //2-twist (7-2/21)

sk: L2 B' L F B2 @ L' F L2 B2 F' U' * F U R U2 F R2 F2 U F U
* = U B U' F U B' U' F' (cancels 7)
@ = B R B' L' B R' B' L (cancels 3)

Solution: L2 B' L F B' R B' L' B R' B' F L2 F' B' U' F U B' R U2 F R2 F2 U F U (27)

TheDubDubJr · Jan 20, 2016

I am happy about my official 26.67 mean obtained over the weekend at Keep Portland Quiet 2016.
My main goal was a 27.00 mean or lower. 8th in the World

scramble - U2 F2 L2 B' F2 R2 U2 F' L2 D2 B' R U B U2 F2 D L2 R' B U

all on normal
D' B // 2x2x1
L2 D' L R U // EO
R2 B' R' U L' // F2L-1
D2 B' L' D2 L B // 18 to L3C

D' B L2 D' L R U R2 B' R' U L' D2 B' L' D2 L B ([0] D' F' D B D' F D B')

Solution - D' B L2 D' L R U R2 B' R' U L' D2 B' L' D2 L B D' F' D B D' F D B' (26)

Found the skeleton with only about 9min left and quickly looked for insertions.
I went through once and found nothing that cancelled and went through again making sure to check within possible alternation of L R but didn't see anything again, so I settled for an 8 move comm that didn't cancel. Ended up being optimal.

scramble - U' F2 B' U2 F L B' R' U' B R2 F2 R' B2 U2 R F2 R D2 L
inverse - L' D2 R' F2 R' U2 B2 R F2 R2 B' U R B L' F' U2 B F2 U

start on normal
R' B' L F // EO
L F2 B2 // 3x2x1
switch
U' L' D L' U2 // 2x2x3
D R2 D' R D' R' D2 R D R' D // 23 to L3C

R' B' ([2]U2 L D L' U2 L D' L') L F L F2 B2 D' R D' R' D2 R D R' D R2 D' U2 L D' L U

Solution - R' B' U2 L D L' U2 L D' F L F2 B2 D' R D' R' D2 R D R' D R2 D' U2 L D' L U (29)

The only other skeleton I found was a 17 to Good 6 corners which I also looked at insertions. Optimal for both skeletons was a 29.

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

start on inverse
D R F R // EO
B // 2x2x1
switch
R2 B' U D2 // 2x2x3
F U F U' F2 R2 F' // 16 to L4C

R2 ([4]U F2 U' B' U F2 U' B) B' U D2 F U F U' F2 R2 F' B' R' F' R' D'

R2 U F2 U' B' U F2 D2 F U F U' F2 R2 ([3]R F R' B' R F' R' B) F' B' R' F' R' D'

Solution - R2 U F2 U' B' U F2 D2 F U F U' F2 R' F R' B' R F' R' F' R' F' R' D' (25)

Glad I was able to find optimal for all skeletons even though they all were fairly easy.

Also proud that with a good FMC tonight, I was able to drop my current Ao50 to sub-27!

Generated By csTimer on 2016-1-20
solves/total: 78/80

single
best: 19.00
worst: 34.00

mean of 3 - best: 24.33 (σ = 4.62)
avg of 5 - best: 25.33 (σ = 0.58)
avg of 12 - best: 26.00 (σ = 1.49)
avg of 50 - best: 26.98 (σ = 1.69)

Average: 27.28 (σ = 1.75)
Mean: 27.15

JackJ · Jan 20, 2016

TheDubDubJr said:
I am happy about my official 26.67 mean obtained over the weekend at Keep Portland Quiet 2016.
My main goal was a 27.00 mean or lower. 8th in the World

scramble - U2 F2 L2 B' F2 R2 U2 F' L2 D2 B' R U B U2 F2 D L2 R' B U

all on normal
D' B // 2x2x1
L2 D' L R U // EO
R2 B' R' U L' // F2L-1
D2 B' L' D2 L B // 18 to L3C

D' B L2 D' L R U R2 B' R' U L' D2 B' L' D2 L B ([0] D' F' D B D' F D B')

Solution - D' B L2 D' L R U R2 B' R' U L' D2 B' L' D2 L B D' F' D B D' F D B' (26)

Found the skeleton with only about 9min left and quickly looked for insertions.
I went through once and found nothing that cancelled and went through again making sure to check within possible alternation of L R but didn't see anything again, so I settled for an 8 move comm that didn't cancel. Ended up being optimal.

scramble - U' F2 B' U2 F L B' R' U' B R2 F2 R' B2 U2 R F2 R D2 L
inverse - L' D2 R' F2 R' U2 B2 R F2 R2 B' U R B L' F' U2 B F2 U

start on normal
R' B' L F // EO
L F2 B2 // 3x2x1
switch
U' L' D L' U2 // 2x2x3
D R2 D' R D' R' D2 R D R' D // 23 to L3C

R' B' ([2]U2 L D L' U2 L D' L') L F L F2 B2 D' R D' R' D2 R D R' D R2 D' U2 L D' L U

Solution - R' B' U2 L D L' U2 L D' F L F2 B2 D' R D' R' D2 R D R' D R2 D' U2 L D' L U (29)

The only other skeleton I found was a 17 to Good 6 corners which I also looked at insertions. Optimal for both skeletons was a 29.

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

start on inverse
D R F R // EO
B // 2x2x1
switch
R2 B' U D2 // 2x2x3
F U F U' F2 R2 F' // 16 to L4C

R2 ([4]U F2 U' B' U F2 U' B) B' U D2 F U F U' F2 R2 F' B' R' F' R' D'

R2 U F2 U' B' U F2 D2 F U F U' F2 R2 ([3]R F R' B' R F' R' B) F' B' R' F' R' D'

Solution - R2 U F2 U' B' U F2 D2 F U F U' F2 R' F R' B' R F' R' F' R' F' R' D' (25)

Glad I was able to find optimal for all skeletons even though they all were fairly easy.

Also proud that with a good FMC tonight, I was able to drop my current Ao50 to sub-27!

Generated By csTimer on 2016-1-20
solves/total: 78/80

single
best: 19.00
worst: 34.00

mean of 3 - best: 24.33 (σ = 4.62)
avg of 5 - best: 25.33 (σ = 0.58)
avg of 12 - best: 26.00 (σ = 1.49)
avg of 50 - best: 26.98 (σ = 1.69)

Average: 27.28 (σ = 1.75)
Mean: 27.15

Wow, really nicely done Walker!

Cale S · Jan 23, 2016

Two official 25 singles, third attempt is after MBLD

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

R F2 U' (U') // 2x2x2
(F) U' R F' R' F U L' // F2L - 1
L' (L') // shift block
(L B D B' D' L') // blocky stuff
(D L D' L' D2) // to L3C

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

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

You could also just insert the pair with WV after blocky stuff and get the same solution

Scramble:

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

(B2) R2 D2 B' U // lol 2x2x3
R F R' L D L' // F2L minus corner
D2 R' (R') // F2L
(F L2 B' L' B L' F') // wide antisune to L3C

R2 D2 B' U R F R' L @ D L' D2 R' F L B' L B L2 F' R B2
@ = [R U2 R', D]

Final solution: R2 D2 B' U R F L U2 R' D R U2 R' L' D2 R' F L B' L B L2 F' R B2 (25)

TheCoolMinxer · Jan 23, 2016

Cale S said:
Two official 25 singles, third attempt is after MBLD

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

R F2 U' (U') // 2x2x2
(F) U' R F' R' F U L' // F2L - 1
L' (L') // shift block
(L B D B' D' L') // blocky stuff
(D L D' L' D2) // to L3C

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

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

You could also just insert the pair with WV after blocky stuff and get the same solution

Scramble:

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

(B2) R2 D2 B' U // lol 2x2x3
R F R' L D L' // F2L minus corner
D2 R' (R') // F2L
(F L2 B' L' B L' F') // wide antisune to L3C

R2 D2 B' U R F R' L @ D L' D2 R' F L B' L B L2 F' R B2
@ = [R U2 R', D]

Final solution: R2 D2 B' U R F L U2 R' D R U2 R' L' D2 R' F L B' L B L2 F' R B2 (25)

Gogogo for WR; you can do it! And NAR in mbld pls :^) Gl

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