[Help Thread] FMC Discussion

[Attila]

Interesting scramble taken from this tweet: U F2 U' L2 D' R2 U B2 L2 D' F' D' F' L2 B L B2 R2 D U

Spoiler

I mainly investigated the normal scramble with premove L' .

[1] Pre-scramble: L'
2x2x2 block: D' B L2
2x2x3 block: U' B D
Pseudo F2L minus 1 slot: R' B' R

[2] Pre-scramble: L'
2x2x2 block: D' B L2
2x2x3 block: U' B D
Pseudo F2L minus 1 slot: L' R' B' R B2 L
Finish F2L: U B' R
c/e pair: R' B' R
All but 3 corners: B L B2 R' B2 R B2 L'
Corner 3-cycle: L U' L' D L U L' D'
Correction: L'
(30 moves)

[3] Pre-scramble: L'
2x2x2 block: D' R B L2 *
Pseudo 2x2x3 block: B D2 B' D2
Pseudo tripod: U R2 U' +
All but 4 corners: B R' B' R B' D B2
Correction: L'

Insert at *: U' B D2 B' U B D2 B'
Insert at +: D B U B' D' B U' B'
(26 moves)

[4] Pre-scramble: D B' L'
2x2x2 block: D' R B L2
Finish F2L: B D2 B' D U R2 U' D
All but 4 corners: D' B' D2 L' D' L2 B' L'
Correction: D B' L'

IF says the optimal insertions give 27 move.

[5] Pre-scramble: L'
2x2x2 block: D' B L2
2x2x3 block: R U R U'
All but 4 corners: D' B' D' B2 D B2 D2 B D2
Correction: L'

IF says the optimal insertions give 28 move.

[6] Pre-scramble: L'
2x2x2 block: D' B L2
2x2x3 block: R U R U'
All but 3 corners: B' D' B' D2 B2 * D' B' D B2 D2 B2 D'
Correction: L'

Insert at *: B U B' D' B U' B' D

Solution: D' B L2 R U R U' B' D' B' D2 B' U B' D' B U' B2 D B2 D2 B2 D' L' (24 moves) Finally!

I found this 23 move solution,
I think, it's a nice example about how to solve many edges during corners orientation.

Spoiler

B' F L' B F' U L2 R' D R' B L D F B' L' U R2 B2 D' U2 B2 U' (23 moves)
First, I found the following start:
U D' more 2 pairs,
L' R2 + B R' U orient corners,
L2 F2 U2 R D2 R' all corners and 5 edges,

insert at the beginning: S' D' S D
insert at +: M,
which gives this start:
B' F L' B F' U L2 R' D R' B orient corners and 6 edges(and forced easy LSE case),
L D F B' L' LSE,
U R2 B2 D' U2 B2 U' permute corners.

 

[zhangcy]

My official PB @Guangzhou Open 2014

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

xross: B' D' F D' L2 U' L2
F2L2: B U' B'
F2L3: R U R'

it's amazing start ~

L5C：B' U B U

B' [@] D' F D' L2 U' L2 B U' B' R U R' [*] B' U B U (17f)

[@] F2 D' B D F2 D' B' D

[*] L F L' B' L F' L' B

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

 

[Attila]

Weekly FMC/47 scramble:
U' F' B' L' R2 B' F D B2 L R B2 D L U F' B' U2 F' D2
I DNF-ed in 1 hour,
but here is a few decent solution over time limit.

Spoiler

1.
F2 R' U' F' R B U D' R B U2 B' L U D' B' L R' U F B' R' F2 L2 U' (25 moves)
F2 R' U' F' orient corners,
R B U D' R
B U2 B' 6 edges,
L U D' B' L R' U F B' R'
F2 L2 U' LSE.

2.
U2 F R2 B' R2 B' U B2 F2 D' F L2 D L R' B' L2 D' B' U D' B' L U' (24 moves)
on inverse:
U L' B D U' B orient corners, and 4 edges,
D L2 B R L' D' 2 more edges,
L2 F' D F2 B2 U'
B R2 B R2 F' U2 LSE.

3.
F2 U2 B2 U2 F' D2 R' U2 D2 L F' D' R L' F B2 D U2 B' L' F D' (22 moves)
on inverse:
D F' L B orient corners, and 2 edges,
U2 D' B U D' @ R 5 edges,
U B' R2 L2 F
L2 U R2 D2 R2 U2 all but 6 centres,
insert at @: E M E' M'
inverse solution:
D F' L B U2 D' B2 F' L R' D F L' D2 U2 R D2 F U2 B2 U2 F2.

 

[guysensei1]

My solution for FMC weekly

Spoiler

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

Premoves: L2 U'

L2 F' //2x2x2
B R D' R2//2x2x3
B' R D R' //EO
D2 B2 D B D2//F2L-1
B2 D' B' D B2 D' B2 D//F2L+WV
R' B L' B2 R B' R' B2 R L//PLL

Final: L2 F' B R D' R2 B' R D R' D2 B2 D B D2 B2 D' B' D B2 D' B2 D R' B L' B2 R B' R' B2 R L' U' (34)

I have a question about premoves. If, at the end of the scramble, we do, lets say U2 F2 D to undo the premoves, then are the premoves U2 F2 D or D' F2 U2?

 

[TeddyKGB]

I have a question about premoves. If, at the end of the scramble, we do, lets say U2 F2 D to undo the premoves, then are the premoves U2 F2 D or D' F2 U2?

U2 F2 D

 

[Cubenovice]

My solution for FMC weekly

Spoiler

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

Premoves: L2 U'

L2 F' //2x2x2
B R D' R2//2x2x3
B' R D R' //EO
D2 B2 D B D2//F2L-1
B2 D' B' D B2 D' B2 D//F2L+WV
R' B L' B2 R B' R' B2 R L//PLL

Final: L2 F' B R D' R2 B' R D R' D2 B2 D B D2 B2 D' B' D B2 D' B2 D R' B L' B2 R B' R' B2 R L' U' (34)

How about finishing a bit more FMC-like after your FL2-1?
B2 D' B' D B' D' B . D B2 - leaves 3 corners in 26 HTM
This part also looks very interesting for insertions.

At . insert B U B' D B U' B D' to cancel 4 moves = 40 HTM

 

[Rcuber123]

How about finishing a bit more FMC-like after your FL2-1?
B2 D' B' D B' D' B . D B2 - leaves 3 corners in 26 HTM
This part also looks very interesting for insertions.

At . insert B U B' D B U' B D' to cancel 4 moves = 40 HTM

You mean 30 HTM

 

[guusrs]

Hi FMC-lovers, I just picked this message up from the german speedcubers.de site, a message from Sébastien Auroux:.
I translated it to English :

-----------------------------------------------------

FMC Europe 2015
Hi everyone,

After the FMC USA 2014 competition (https://www.worldcubeassociation.org/results/c.php?i=FMCUSA2014) there were discussions among European Degelates to organize something like this in Europe. After some tuning the date is specified:

Saturday, March 28, 2015

For those who have not heard anything from FMC USA competition, I briefly explain the principle: It is a pure FMC competition in many different locations, in this case in Europe. All participants at all sites will participate at the same time with the same Scrambles and the whole is officially one competition. So you can measure yourself with all participants at all locations!

Björn and I are both on board, which means there will be two locations, namely Paderborn and Regensburg / Munich in Germany. Overall, there have been about 20 interested delegates from across Europe.

Each delegate involved is knows that such a competition at each location will attract far fewer participants than a "normal" Competition. Nevertheless, we hope that this extraordinary concept will bring an average of more than just a handful of participants in the respective locations.

Happy cubing,

Sébastien

Edit: Of course, there are 3 trials as of Mean. 3

 

[okayama]

Hi FMC-lovers, I just picked this message up from the german speedcubers.de site, a message from Sébastien Auroux:.
I translated it to English :

-----------------------------------------------------

FMC Europe 2015
Hi everyone,

After the FMC USA 2014 competition (https://www.worldcubeassociation.org/results/c.php?i=FMCUSA2014) there were discussions among European Degelates to organize something like this in Europe. After some tuning the date is specified:

Saturday, March 28, 2015

Thanks for the information!
The date looks nice for me as well, I would very much like to go!

 

[BQ]

My solution on the Cross-strait FMC 2014 with the mean of 30.67, which also reaches my official best.

Spoiler

1.
scramble: D' F R' L2 F' B U R' B D' B2 U2 L2 F R2 D2 B' R2 U2 L2
l4c: U' F' U D L2 F' B' D R2 B' * R' B D B2 R' B' R B L' D L D'
*: B L' # F' L B' L' F L
#: L' F R F' L F R' F'
solution: U' F' U D L2 F' B' D R2 L2 F R F' L F R' F2 L B' L' F L R' B D B2 R' B' R B L' D L D'

2.
scramble: R2 F2 U R2 B2 F2 D' F2 U2 F2 R D' F2 L U L2 B2 U' B' U2
223: D2 B' L' R2 U B2 R' F' R
NISS:
F2L-3: F2 L F L
F2L-4: F2 L F D' L D L2
PLL: F2 L' F R' F2 L F' L' F2 L R
solution: D2 B' L' R2 U B2 R' F' L' F2 L F L' F2 R F' L F2 L2 D' L' D F' L' F2 L' F' L' F2

3.
scramble: B R' B2 R' D' R2 D2 F B R U L2 D2 B2 D2 B' R2 F' D2
222: D F2 R D2 F * U
2*122: L' D L R B R
NISS:
l3c: B D' B2 R' B' D' R2 D R B' R' D B' D' B R
*: F2 U B U' F2 U B' U'
solution: D F2 R D2 F' U B U' F2 U B' L' D L R D B D' R B R' D' R2 D B R B2 D B'

 

[Yuxuibbs]

Michigan Mystery FMC round 1 solution:

yes, I used straight CFOP. Deal with it.

Scramble: B2 F2 U L2 B2 U2 R2 F2 D' L2 F' R' B' U' B U' L D L' B2
Solution: U' R' U' R U L F' L' F2' U' F' L' U2' L R U R2' U2' R U' B' U B U' B U' D' L' F L2' (30)

Spoiler

Inverse: B2 L D' L' U B' U B R F L2 D F2 R2 U2 B2 L2 U' F2 B2
Solution:
L2 F' L D U B' // Cross (6)
U B' U' B // F2L 1 (4)
U R' U2 R2 U' R' // F2L 2 (6)
L' U2 L // pair up F2L 3 (3)
F U F2 L F L' // pair up F2L 4, sledgehammer in F2L 3 (6)
U' R' U R // F2L 4 (4)
U // AUF (1)

 

[Cale S]

29 move solution for the previous weekly FMC

Spoiler

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

on normal: L2 F' // square
on inverse: U L2 // 2x2x2
on normal: B R D' R2 // 2x2x3
on inverse: R D R' // EO
on normal: D B2 // form pair
on inverse: B' D B // F2L - 1
on normal: B D2 B' // solve edges/to L5C

skeleton: L2 F' B R ** D' R2 D B' D2 B2 D' B * R D' R' L2 U'
insert at *: [B2, R' F2 R]
insert at **: [F' U2 F, D']

final solution: L2 F' B R F' U2 F D' F' U2 F R2 D B' D2 B2 D' B' R' F2 R B2 R' F2 R2 D' R' L2 U' (29)

I switch between normal and inverse a lot
Insertion Finder found a 27 move solution with my skeleton

First sub-30 FMC attempt if you don't count the 29 I had from the example solve thread

 

[Meneghetti]

All my solves from Porto Alegre Open 2014 (mo3: 35/30/38 = 34.33)

Optimal insertions! I'm pretty happy about getting optimal even in the tough cases with 4 corners! Too bad the skeletons sucked.

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

Spoiler

F2 B' L2 F' D R D // 2x2x2
(switch to inverse)
U' L B' U // pseudo 2x2x3
(switch to normal)
U' // 2x2x3
U D' B U2 D L' U // EO
B L' B * L B2 // F2L-1
L' B' L' B L B' L B L' // AB3C

insert at *: B' U' B D B' U B D' // 2 cancellations

Final solution: F2 B' L2 F' D R B U2 D L' U B L' U' B D B' U B D' L B2 L' B' L' B L B' L B L' U' B L' U (35 OBTM)

B' L' B L' B' L B // this is an obvious ending I should have seen, leaving 3 corners in 26 moves instead of 29 (for a 32 moves solution, according to IF)

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

Spoiler

(on inverse scramble)
R' D R U' B' R B // 2x2x2
L' R U L2 R' U2 F // F2L-1 + EO
L' F L F' L' // AB4C (one corner is flipped)

Skeleton: L F L' F' L F' U2 R L2 U' R' L B' R' B U * R' D' R %
insert at *: U2 R' D2 R U2 R' D2 R // 4 cancellations
insert at %: R U2 R' D2 R U2 R' D2 // 1 cancellation

Final solution: L F L' F' L F' U2 R L2 U' R' L B' R' B U' R' D2 R U2 R' D R2 U2 R' D2 R U2 R' D2 (30 OBTM)

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

Spoiler

Premove: B // corrects pseudoness
D B L F' D B2 D2 B2 U' F' R F D R2 // a really bad 2x2x3
U B' R B2 R' B * // pseudo F2L-1
L' B' U' % B U L U' // AB4C (one corner is flipped)

insert at *: B' L F L' B L F' L' // 3 cancellations
insert at %: U B2 U' F U B2 U' F' // 3 cancellations

Final solution: D B L F' D B2 D2 B2 U' F' R F D R2 U B' R B2 R' L F L' B L F' L2 B U' F U B2 U' F' B U L U' B (38 OBTM)

And now I have an official avg12: 35, (29), 33, (38), 36, 38, 29, 30, 36, 31, 35, 30 = 33.3

 

[porkynator]

March 28 you say? Sounds nice

Here is an interesting scramble for corner first solvers:
U' D' F R2 D2 R' B U F2 B2 R2 U2 B2 D2 B2 L D2 R' U2
My solution:
[/spoiler]
B U D2 B' U' D L U2 D' F U2 D' B F L2 F L2 F R2 L' B' L' R D L D' (26 HTM)

* B2 U2 D' //CO
B F R2 B R2 B L2 //CP
R' F' R' L D R D' //2 more edges

* = B E' D U2 R' E' R U2 D' B' //Last 6 edges and 4 centres[/spoiler]

And something interesting form the example solve thread (aka the other FMC thread):
Scramble R L2 B2 F' D' L2 D2 B' F' L B F U' L R2 U B2 D2 B L' U B U R' F2

F2 R' L2 F' //EO
R' D2 R' F2 //Blocks
R U2 R' U2 R2 //All but 4 edges and 4 corners

Both edges and corners make a 4-cycle, so it is possible to conjugate them all to one face and solve everything with one move. However, I couldn't find anything nice, so I just gave up.
Good luck if you want to try

 

[EMI]

And something interesting form the example solve thread (aka the other FMC thread):
Scramble R L2 B2 F' D' L2 D2 B' F' L B F U' L R2 U B2 D2 B L' U B U R' F2

F2 R' L2 F' //EO
R' D2 R' F2 //Blocks
R U2 R' U2 R2 //All but 4 edges and 4 corners

Both edges and corners make a 4-cycle, so it is possible to conjugate them all to one face and solve everything with one move. However, I couldn't find anything nice, so I just gave up.
Good luck if you want to try

After the EO and Blocks: R2 U' R U2 R2 U' @ R2 U' R U2 R2 leaves 4 edges, @ = U2 B2 L D2 B2 U2 R F2 (found by IF though) results in 26.
I did however find a similar 30 move finish within 5 minutes.

 

[Sebastien]

The first scramble from the current German forum's FMC competition: D' L D B D2 R D F' U L2 F D2 F' R2 L2 F' U2 B

I found a 19 move solution after ~10 minutes. Moritz Karl also found the same solution modulo switching independently.

Hint: 17 moves to L3C with really nice cancelation.

 

[obelisk477]

The first scramble from the current German forum's FMC competition: D' L D B D2 R D F' U L2 F D2 F' R2 L2 F' U2 B

I found a 19 move solution after ~10 minutes. Moritz Karl also found the same solution modulo switching independently.

Hint: 17 moves to L3C with really nice cancelation.

What speedsolving method do you use, out of curiosity?

 

[Sebastien]

No idea why that's of interest, but I use Fridrich.

 

[obelisk477]

Well I know that practicing Roux has helped my block building significantly, and so I was wondering if you used a block building type method as your speed solving method, which could contribute to your ability at FMC

 

[Sebastien]

Oh, well, no, but I have used block building in FMC ever since, even before I knew any advanced FMC technique.