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CyanSandwich

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I've been looking for a thread that outlines some FMC techniques as well as the lingo. I've been learning about comms. I finally have figured out what insertions mean. I know most of the heise method. But I've yet to find info on what a skeleton is or its purpose. And also how to use inverse scramble (or even why this is useful or allowed ).

Anyone point me in the right direction?
https://www.speedsolving.com/forum/showthread.php?49162-FMC-a-Complete-Tutorial
Goes over everything.
 

Cale S

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24 for ongoing Weekly FMC
scramble: L2 B2 U' F2 D2 R2 F L2 U2 R2 L' U2 R2 L' B2 F2 D2 L2 B2 R

D F' // square
U2 // another one
(L2 F' L2 R) R2 // 2x2x3
(L' B L2 U' L') // EO + CP (reduce to 2-gen)
U2 B' U' B' U' B2 // F2L - 1
B' U2 B U' B' U2 B // summer variation

Final solution: D F' U2 R2 U2 B' U' B' U' B U2 B U' B' U2 B L U L2 B' R' L' F L2 (24)




22, 28, 28, 27, 26, 23, 24, 27, 24, 23, 23, 26, 26, 26, 26, 28, 28, 24, 25, 25, 29, 24, 24, 25, 27, 26, 28, 23, 25, 24, 26, 24
 

Robert-Y

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My attempt at that scramble^

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

L' D2 L D' // EO (yes this is long :p)
F' L2 F // 1x2x3
L' R' F2 L2 B' L' // Pseudo F2L (premoves: L2 R2)
F L' F L2 B' L B L2 F2 // LL
D2 L2 R2 // Finish solve

L' D2 L D' F' L2 F L' R' F2 L2 B' L' F L' F L2 B' L B L2 F2 D2 L2 R2 (25)

Can anyone find a better way to solve the last 3 corners and edges? If you look at LL and remove F at the start and F' at the end, you get L' F L2 B' L B L2 F' which is a block commutator. I couldn't find a better way to setup the pieces for a 8 move block commutator in my skeleton...
 

irontwig

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My attempt at that scramble^

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

L' D2 L D' // EO (yes this is long :p)
F' L2 F // 1x2x3
L' R' F2 L2 B' L' // Pseudo F2L (premoves: L2 R2)
F L' F L2 B' L B L2 F2 // LL
D2 L2 R2 // Finish solve

L' D2 L D' F' L2 F L' R' F2 L2 B' L' F L' F L2 B' L B L2 F2 D2 L2 R2 (25)

Can anyone find a better way to solve the last 3 corners and edges? If you look at LL and remove F at the start and F' at the end, you get L' F L2 B' L B L2 F' which is a block commutator. I couldn't find a better way to setup the pieces for a 8 move block commutator in my skeleton...

I tried, but couldn't improve on your solution:

Here's a silly way to get 25:
L' D2 L D' // EO (yes this is long )
F' L2 F // 1x2x3
L' R' F2 L2.B' L R2 // Pseudo F2L (premoves: L2 R2)

.=B R' B' R

L' D2 L D' F' L2 F L' R' [@1] F2 L2 B R' B' R B' L R2
Insert at @1: R' B' R F2 R' B R F2
After the 1st insertion: L' D2 L D' F' L2 F L' R2 B' R F2 R' B R L2 B R' B' R B' [@2] L R2
Insert at @2: B R' B' L' B R B' L
Fewest moves: 25. 9 moves cancelled
The final solution: L' D2 L D' F' L2 F L' R2 B' R F2 R' B R L2 B R' B2 L' B R B' L2 R2

As you might guess, I tried to find a place to insert a 4 mover to leave three corners, but couldn't. Btw, when did four moves for EO become long? Also, I found a 23-mover on that scramble (50 minute skeleton, bit of a close shave, but whatevs, that's what you get when you average like 16 instead of sub-10.).
 

TheDubDubJr

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22 for ongoing Speedsolving Forum Competition - FMC Scramble

Glad to have another good single since its been a while.

n B2 U R2 D2 U B2 R2 D B2 L2 U2 L D R2 F U2 F U2 R2 F U
i U' F' R2 U2 F' U2 F' R2 D' L' U2 L2 B2 D' R2 B2 U' D2 R2 U' B2

n U' R2 F // EO
L2 // 2x2x1
switch
i D2 U L U' B2 // PS 2x2x3
F2 R' U F2 U2 // 14 to L5C

U' R2 F L2 U2 F2 U' R ([3]512 R B R' F2 R B' R' F2) F2 B2 U L' ([5]345 L U' L' D' L U L' D) U' D2

U' R2 F L2 U2 F2 U' R2 B R' F2 R B' R' B2 L' D' L U L' U' D' // 22
 

Cale S

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sometimes 3 insertions for a corner 3-cycle is better than 1
Weekly FMC spoilers
scramble: D2 L B D' U2 B' L' U F D2 R2 F' L' U2 R2 B2 D L2 B U


D' L2 F2 U2 // 2x2x2
(B2 D' F' D F) D' // 2x2x3
(U B2 U') U' L' U L' // to ZBLL

D' L2 F2 U D' L' U L' U B2 @ U' F' D' F D B2
@ = B' U' B' U B2 U' B2 U

skeleton: D' L2 F2 U D' L' U L' U B U' B' U B2 U' B2 F' D' F D B2
insert [B2, D' F' D F] at the end

new skeleton: D' L2 F2 U D' ^ L' U L' & U B U' B' U B2 U' F' D' F D
^ = [D R D', L']
& = [L, U' R U]

Final solution: D' L2 F2 U R D' L' D R' D' R U L' U' R' U2 B U' B' U B2 U' F' D' F D (26)
Not that the dadams scrambles are the highest honor in all of FMC, but I really think these two solutions are beyond suspicious. They seem like Kociemba 2-phase solutions to me.

https://www.ocf.berkeley.edu/~dadams/fmc/profile/218/
those explanations are pretty funny :p
 

Cale S

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2 questions for other FMCers:

If you do BLD in an orientation other than the WCA scrambling orientation, do you scramble in that orientation instead?

Do you actually write down the inverse scramble at the start of an attempt?
 

Torch

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2 questions for other FMCers:

If you do BLD in an orientation other than the WCA scrambling orientation, do you scramble in that orientation instead?

Do you actually write down the inverse scramble at the start of an attempt?

I scramble for FMC in my BLD orientation. I'm so used to (in my case) blue being U, red being F, and so on that it was easier for me to do that for FMC than learn something new.

I usually write down the inverse, but not until I actually use it; i.e. I'll start immediately looking at normal, then I'll write down the inverse when/if I switch.

Disclaimer: I'm not great at FMC.
 

Cale S

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I guess I'll share my answers also:
1. I use WCA scrambling orientation for BLD so this isn't a problem ;)
2. I don't because I'm bad at copying scrambles and I can invert looking at it just as quickly as normal scrambles
 

TheDubDubJr

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2 questions for other FMCers:

If you do BLD in an orientation other than the WCA scrambling orientation, do you scramble in that orientation instead?

Do you actually write down the inverse scramble at the start of an attempt?

1) I do Blue top, Yellow front for BLD but I never scramble in that orientation for either BLD or FMC.

2) I always write the inverse scramble at the start of an attempt. I am fast at scrambling the inverse of written notation but I feel like writing it does save time when I have to scramble using the inverse over and over.
 

kinch2002

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22 moves UK NR

Exeter Open 2016
D R F' D' L2 B2 L' D F2 B U2 B' U2 L2 B U2 B2 D2 R2

Could have spent another 2 hours on this scramble without getting bored...too much to explore here in 1 hour.

My 22 move NR
F2 R' D' U2 F R D2 R2 // 2x2x3 (8)
D' L B2 L' // F2L-1 (12) (yes there's a 13 move F2L...more on that below)
D B D2 F B2 L B L' F' D // Finish (22)
You can think of this last part as either a forced LL skip or a sledgehammer to leave 3 corners, and insert to cancel a ton of moves.

Other full solutions I found
F2 R' D' U2 F R D2 R2 // 2x2x3 (8)
B' D' L B2 L' // F2L (13)
R L' D' L2 B' L' B2 D' B' D2 R' D' // Finish (24). This is the 9-move 3twist2flip alg with a setup move R and AUF at the end ofc

F2 R' D' U2 F R D2 R2 // 2x2x3 (8)
Switch to inverse
B D2 B // F2L-1 (11)
D' L' D' L B D B' D2 // Leave 3 corners (19)
26 moves after insertion

Other starts
2x2x2s:
Premove F', then L' U' (3)
Premove F', then B2 L' U' (4) is also nice
Found at least 6 more 5-movers quickly. Won't bother listing them all here
2x2x3s:
Premoves U L then inverse scramble and F L2 D' B2 D' (7)
B2 L F2 D F R B2 (7) (gives 11 move F2L-1 with B' L' D' L B)
B2 L F2 D R F B2 (7)
Premoves D F' then L' U' L D' B D2 (8)
B2 F' L2 D' L' D2 R B2 (8)
B2 F U F2 D L R' B2 (8)
 

Evan Liu

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Exeter Open 2016
D R F' D' L2 B2 L' D F2 B U2 B' U2 L2 B U2 B2 D2 R2
My solution:
B2 U L * F2 D R' F // 2x2x3 (7/7)
B2 // F2L-1 (1/8)
D' R2 D R B R' B' R2 // to L4C (8/16)

*D B ^ D' F2 D B' D' F2 (8-4/20)
^B U2 B' D' B U2 B' D (8-3/25)

The podium of Daniel (22), me (25), and Rob (27) is tied for the 4th best as of posting, only one move total behind the three tied for first place.
 

kinch2002

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My solution:
B2 U L F2 D R' F // 2x2x3 (7/7)
B2 // F2L-1 (1/8)
Wow didn't have an F2L-1 this short! Your continuation is obvious enough after that, but how about this...
R D' F' U F' U' F R2 F R' D // 3 corners (think of it as building the RBW block in a convoluted way, while making an extra pair)
Skeleton B2 U * L F2 D R' F B2 R D' F' U F' U' F R2 F R' D
Insert B' L F2 L' B L F2 L' to cancel 4 moves = 23 moves :)
 
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