[Help Thread] FMC Discussion

[ichcubegerne]

A short question, because I read that in a FMC solution, but never heard of it before
What is AB3C ?

 

[Brest]

What is AB3C ?
Never read that in a FMC solution

All But Three Corners

 

[ichcubegerne]

Thanks, I just read L3C until now

 

[Username]

First two FMC europe solves were insanely lucky for me

1st solve was a PLL skip

2nd was LL skip

 

[obelisk477]

2nd was LL skip

Did you at least have to force the OLL?

 

[okayama]

My solutions from FMC Europe 2015.

1st scramble: B R F2 L U' L D2 B L B2 U' F2 U B2 R2 D F2 L2
1st solution: F D' B L B D F D' B D F2 D' F' D2 B' D2 F' D2 F B' L D' L' D B2 U2 (26 moves)

Spoiler

45 min solution.

Pre-scramble: B U2

2x2x2 block: F D' B L B
2x2x3 block: D F' * D' F'
F2L minus 1 slot: B D2 B'
Orient edges: D2 F' D2 F
All but 3 corners: B' L D' L' D B
Correction: B U2

Insert at *: F2 D' B D F2 D' B' D

2nd scramble: U' L' D' F' D B' D' B' U L2 F L2 F L2 D2 F' L2 B' R2
2nd solution: F2 D' R F R' F' D2 F2 D2 F2 D L D' L' F' D' L2 D' B U2 B' U' B D' F U2 F' D F U2 (30 moves)

Spoiler

15 min backup solution.

(Inverse)
2x2x2 block: B' F' U B U2 B'
2x2x3 block: D L2

(Normal)
Pre-scramble: L2 D' B U2 B' U' F B

c/e pairs: F2
Orient edges: D' R F R'
Finish F2L: F' D2 F2 D2 F
All but 3 corners: F D L D' L' F' D'
Correction: L2 D' B U2 B' U' F B
Corner 3-cycle: F' D' F U2 F' D F U2

With the same premoves,
c/e pairs: F2
Orient edges: D2 L D' L'
Finish F2L: D F2 D' F'
All but 3 corners: R F D F' D' R' D'
Corner 3-cycle: D B D' F' D B' D' F
Correction: L2 D' B U2 B' U' F B

gives 30 moves, not better than above.

3rd scramble: U2 F' R D B' D' F2 L' D2 R' F B2 U' L2 B2 U2 D B2 D B2
3rd solution: F R2 U' F2 B' R' B' R F' R2 B' R2 B R U2 D2 F2 U F' R' L' F' R' F L F' R2 (27 moves)

Spoiler

30 min backup solution.

(Inverse)
Pre-scramble: F' U R2 F'

2x2x3 block: R' F R F U' F2 D2 U2

(Normal)
Pre-scramble: U2 D2 F2 U F' R' F' R

2x2x3 block: F R2 U' F
F2L minus 1 slot: B' F R' B' R F'
All but 3 corners: R2 B' R2 B R
Correction: U2 D2 F2 U F' R' * F' R

Insert at *: L' F' R' F L F' R F


With the same premoves,

2x2x3 block: F R2 U' F
All but 3 corners: B' F R' B' R' B' R2 B R2 F' R'
Correction: U2 D2 F2 U F' R' F' R

or

Tripod: F R2 U B2 U2 F
All but 4 corners: B R' B' R2

give 27 moves, not better than above.

26, 30, 27 = 27.67 AsR.

I was not in good condition because I have a fever today.
I hope I could manage Sub 30 on the 2nd scramble...

Congrats to the winners, with Sub 27 mean! Awesome!

EDIT: Official Rolling Average of 12: 24, (21), (33), 25, 30, 30, 28, 31, 26, 26, 30, 27 = 27.7.

 

[Username]

Did you at least have to force the OLL?

I did some last layer block forcing (made a 2x2x1 block while inserting last pair, ended up skipping the rest)

 

[Jimmy Liu]

26, 30, 27 = 27.67 AsR.

Congratulations for your huge success at FMC Europe 2015, which makes it even harder for me to get a AsR^^.

 

[Marcel P]

My winning solutions from FMC Europe 2015 (official Single and Mean PB):

1st Scramble: B R F2 L U' L D2 B L B2 U' F2 U B2 R2 D F2 L2
1st Solution: D R D2 F R2 U' R' U2 R D U B U' F U' B' U F' D' B' R F2 U2 (23)

Spoiler

Premove U2
pseudo 2x2x3: D R D2 F
switch and 2x2x3 + orient 2 Edges: F2 R' B
switch and pseudo F2L-1 + many Pairs(Keyhole): R2 U' R' U2 R D
L3C: U B U2 B' U D'
Skeleton: D R D2 F R2 U' R' U2 R D U B U2 B' $ U D' B' R F2 U2 (20)
$ = B U F U' B' U F' U' (5 Move Cancellation )

2nd Scramble: U' L' D' F' D B' D' B' U L2 F L2 F L2 D2 F' L2 B' R2
2nd Solution: D2 R' B' R F' R' B R D F' D2 F' D' F' D2 F2 R2 F D' F D F2 U B' U L U (27)

Spoiler

On Inverse Scramble:
EO (R2,L2,U,D,F,B): U' L'
2x2x2: U' B U'
2x2x3: F2 D' F' D F' R2
lucky L3C: F2 D2 F D F D2 F D' F D2
Skeleton: D2 % F' D F' D2 F' D' F' D2 F2 R2 F D' F D F2 U B' U L U (21)
% = R' B' R F' R' B R F (2 Move Cancellation)

3rd Scramble: U2 F' R D B' D' F2 L' D2 R' F B2 U' L2 B2 U2 D B2 D B2
3rd Solution: F R' B' R' F2 B2 R' F' R B2 R' F R2 F' B' U R' D B D' R2 B R B R' B' R2 D2 (28)

Spoiler

Premove D2
2x2x3: F R2 * F2 R F' B2 U
EO + Pairs: R' D B D' R2
L4C: B R B R' B' R2 (19)
* = R B' R' F2 + R B R' F2 (6 Move Cancellation!)
+ = B2 R' F' R B2 R' F R (1 Move Cancellation)

Mean: 26.00

Congratulations to all PB's and the many sub 30 Means

 

[EMI]

FMCE

Spoiler: Solutions

1st: B R F2 L U' L D2 B L B2 U' F2 U B2 R2 D F2 L2
2x2x2: B L' F2 B2 @ U2
3c3e: B' D F D' F' D B R B R D2 # (16)
@ = B' U' R U' R' U2 B (7-1)
# = D2 F' U' F D2 F' U F (8-2)
Total: B L' F2 B U' R U' R' U2 B U2 B' D F D' F' D B R B R F' U' F D2 F' U F (28)

2nd: U' L' D' F' D B' D' B' U L2 F L2 F L2 D2 F' L2 B' R2
Start on inverse - 2x2x2: U2 B U'
Blocks: R'
Switch to normal, Pseudo-F2L-1: D2 R2 F R F R2 D2 (add premoves: F D')
3 pairs: R F D' F' D
Rest: B D B' R B D' B' R
Total: D2 R2 F R F R2 D2 R F D' F' D B D B' R B D' B' R F D' R U B' U2 (26)

3rd: U2 F' R D B' D' F2 L' D2 R' F B2 U' L2 B2 U2 D B2 D B2
Pseudo-2x2x3: F R2 [U2] F2 R F' U
Switch to inverse, F2L-1: D2 B R B R
2+2 Corners: B2 R' U R U' B'
Skeleton: F R2 U2 F2 R F' U B U # R' U' R B2 R' @ B' R' B' D2 (18)
@ = R B2 R' F' R B2 R' F (8-6)
# = U' B U F U' B' U F' (8-3)
Total: F R2 U2 F2 R F' U B2 U F U' B' U F' R' U' F' R B2 R' F B' R' B' D2 (25)

Mean: 28, 26, 25 -> 26.33 PB and third in Germany!

Btw, Jan Bentlage found the exact same solution to the third scramble, which surprised me as it isn't a very obvious skeleton.

Congrats to everyone who set a PB! Everybody else, well we all know FMC is partly based on luck, so it's only a matter of time

 

[joey]

This was my first attempt since 2013.

FMCE:
scramble: B R F2 L U' L D2 B L B2 U' F2 U B2 R2 D F2 L2
2x2x2: F U' L2 U' F
2x2x1: D' B' R B' R'
2x2x1: D2 R' B2 R2 B' R' B2 R'
F2L: D' R D R' D
LL: L' D L B L' D' L D B' D' B2

 

[Attila]

FMCE 3rd scramble: U2 F' R D B' D' F2 L' D2 R' F B2 U' L2 B2 U2 D B2 D B2
My solution: L D' F U L' R B2 R2 B' F' U' F B' R F2 B' R F B2 L' F' B D B R' L2 B2 L2 F' B2 D 31 moves

Spoiler

First try, I found a 9 move optimal solution for corners, on inverse:
D' B D2 B' D2 B R' B R' (D' B D B separate, then PBL, with 3 moves cancel)
After some bad attempts on inverse, I switched this alg. to normal scramble:
R B' R B' D2 B D2 B' D.
If I use the last D as premove:
R B' R orient,
B' D2 4 matching corner-pairs
B D2 B' solve.
So, I begin to solve based on this:

Premove: D
L D' F orient corners and 2 edges,
U L' R 2 more edges,
B2 R2 B' F' U' F B' R 2 more edges,
F2 B' R F B2 L' F' B D B R' L2 B2 L2 F' B2 LSE + edges swap (quite hard case, CE says 15 moves).
I finished in the 60th minutes. Maybe would be better continuation after first 6 moves, but I ran out of time.

Congrats to the many great solves!

 

[porkynator]

My solves from FMC Europe 2015

Spoiler

1st Scramble: B R F2 L U' L D2 B L B2 U' F2 U B2 R2 D F2 L2
My solve (NOT DNF):

Spoiler

On inverse with premoves R D'
U2 D F //2x2x1 (3/3+2)
B D2 R' //2x2x2 + pairs (3/6+2)
F R' U F' //F2L-1 (4/10+2)
And then something random, I don't remember exactly. After that nice F2L-1 in 12 I only had 20 minutes left, I decided to go for a backup solution but I kept writing down the skeletons wrong and I ran out of time. 34 moves total.

2nd Scramble: U' L' D' F' D B' D' B' U L2 F L2 F L2 D2 F' L2 B' R2
My solve (27):

Spoiler

F' B' D B * U B' //2x2x2 (6/6)
U D F' D' F2 U' F L //All but a few pieces (8/14)
R' F' U' F U R U2 //All but 3 edges (7/21)
* = L' R D2 L R' B2

3rd Scramble: U2 F' R D B' D' F2 L' D2 R' F B2 U' L2 B2 U2 D B2 D B2
My solve (27):

Spoiler

Premove D2
F R2 [U'] F2 R F' [B2] U //2x2x3 [+EO] (8/8+1)
B' R' B R B2 //Two pairs (5/13+1)
(B2 R2 B2 R2 B) //F2L (on inverse) (5/18+1)
Sune LL
I found the same 28 moves solution as Marcel, and in the last 10 minutes I found this one.

34, 27, 27 = 29.33 not great

 

[cubizh]

This is my second FMC Europe 2015 solve:

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

F U' F D // 2x2x2 RBY block (1 move cancel to next step) - 4 (4)
R' U' R' F' U' F // 2x2x3 block - 6 (10)
L' U2 L2 U L' B L B' // F2L-1 - 8 (18)
F U2 F' U' F U F' // F2L - 7 (25)
Rw U R' U' Rw' F R F' U // LL - 9 (34)

Disappointed that I couldn't find a proper insertion for the last 3 corners. I could have saved 3 moves. I have never done this kind of search before, since I'm not too comfortable with it, so I think it was still a pretty good (lucky) result for me.

Spoiler: Scramble 1 (46)

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

U' F L2 U' F // 2x2x2 WGO block - 5 (5)
D' B2 D' B L B' L' // 2x2x3 block - 7 (12)
B R' B R D' R2 D // F2L - 1 (cancels at the end) - 7 (19)
B' R' B' R B R' // F2L - 6 (25)
Lw' B' L B' L' B L B' L' B2 R' // OLL cancelled 1 move - 11 (36)
D' R' D' R D R D R D' R // U perm - 10 (46)

Considering optimal LL in this case is 12 my 21 move LL is atrocious but my knowledge of dealing with the last layer for fewest moves and time didn't allow for more.

 

[Username]

First try at NISS

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

Premove: F'

R B F2 D' F /2x2x2
R' B' D' R D /2x2x3
(B' L U' L2 B' L B) /switch and f2l-1
U' L' B' L2 D2 R' F' R U R' U' R D2 L' /switch and solve the rest
F' /Undo Premove


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

I looked up the end on cube explorer, really only did this as an experiment on if I am able to NISS and understand how the switching stuff works

 

[joey]

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

F U' F D // 2x2x2 RBY block (1 move cancel to next step) - 4 (4)

I failed so hard by not finding this :/

 

[Krohag92]

My 23 solution from FMC Europe 2015

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


1)On inv: U2 (PAIR)

2)On scr: D R D2 F R' (2X2X1 + 2X2X1)

3)On inv: F2 B (2X2X3)

4)On scr: R' U B' R B2 U B' U' (FL-1 & L5C)

5)On scr: D R D2 F R2 U B' R * B2 U B' U'
* R' B' L2 B R B' L2 B (4 Move Cancellation)

6)On scr: D R D2 F R2 U B2 L2 * B R B' L2 B' U B' U'
* L B R' B' L' B R B' (4 Move Cancellation)

Final Solution: D R D2 F R2 U B2 L' B R' B' L' B R2 B' L2 B' U B' U' B' F2 U2 (23)
It's not PB, but very nice solve. And after i ruined my mo3 (36 and 38)

 

[Randomno]

FMC is annoying.

R2 U2 B2 U2 D2 B' L' F' D' R2 D2 F2 B R2 D2 B U2 B' R2 L2

y R2 L F2 R'
z U' B' R U2 R2 U' R'

Meh.

Still can't do commutators optimally.

 

[Berd]

FMC is annoying.

R2 U2 B2 U2 D2 B' L' F' D' R2 D2 F2 B R2 D2 B U2 B' R2 L2

y R2 L F2 R'
z U' B' R U2 R2 U' R'

Meh.

Still can't do commutators optimally.

Don't rotate!

 

[Randomno]

Don't rotate!

Yeah I'd obviously edit them out of a final solution but I didn't get that far.