The FMC thread

EMI · Jun 8, 2014

Raviorez said:
I know it's very bad but I don't know any commutator or FMC technique (just that Petrus is better than CFOP)
And I just know 4LLL..
Do you have tips for me?

Thanks in advance

Well my tip is learn some FMC techniques?

Raviorez · Jun 8, 2014

EMI said:
Well my tip is learn some FMC techniques?

Such as?

yoinneroid · Jun 8, 2014

Raviorez said:
Such as?

commutator
inverse scramble
premoves
NISS

EMI · Jun 8, 2014

...Petrus, Heise maybe. At least more than just CFOP

TheDubDubJr · Jun 13, 2014

Team FMC with Anonymous Moose :tu

Hello
This is Walkie-Talkie
I am Anonymous Moose!!!!!
7x7 FMC
are you sure you can spell annonymoose? no!
Anonymous moose

11:46

n: U2 R2 D2 B2 F' L2 B' D2 B2 U2 F D' U2 B' F U L2 R2

I: R2 L2 U’ F’ B U2 D F’ U2 B2 D2 B L2 F B2 D2 R2 U2

Pre - D2 U’ // (2/2)

U F’ D // 2x2x3 (3/5)
F L U’ L' // F2L-1 (4/9)
L F’ U’ F U L F // leaving 5-corners (7/16)

2 cancel for 14moves

skeleton - U F’ D F L U’ * F’ U’ F # U L F D2 U’

# = F2 U B U’ F2 U B’ U’ // 3 cancel
* = R2 D’ L2 D R2 D’ L2 D // 0 cancel

U F’ D F L U’ R2 D’ L2 D R2 D’ L2 D F’ U’ F’ U B U’ F2 U B’ L F D2 U’ (27)

If says 26

Other stuff we dinked around with
Pre - D2
U F’ D F L2
F U’ F’

D2 U'
F’ D U’ L’ D’ L D U
L’ F

inverse - L2 F2 L’

Anonymous

Moose

Is

TeddyKGB

dbax0999 · Jun 14, 2014

I've just pushed my FMC website out of 'beta'. This update include a leaderboard displaying the top users and top submissions as well as a few more small additions to give the site a more complete feel. My schedule gets a lot busier starting on Monday so I won't be able to develop this site as much.

I made an official thread for it in the Competition Forum, check it out here: http://www.speedsolving.com/forum/showthread.php?48018-Online-Weekly-FMC

Let me know if you have any last suggestions that you'd like to see before my summer work and classes start.

Cheers,
David

10461394944000 · Jun 16, 2014

3rd scramble from nottingham summer: L2 F' R' F2 D2 R B2 U' R2 U' F U R U L2 B2 D2 (17f*)

I found a 14 move pseudo-f2l but the LL was bad and I couldn't find anything good after that

L F D' L R' U D' F U' D' R' D R' F //F2L
F B2 R' F' R F B' R F' R2 F R2 F' B' D' F D L D' L' //LL

33 moves

ardi4nto · Jun 16, 2014

10461394944000 said:
3rd scramble from nottingham summer: L2 F' R' F2 D2 R B2 U' R2 U' F U R U L2 B2 D2 (17f*)

I found a 14 move pseudo-f2l but the LL was bad and I couldn't find anything good after that

L F D' L R' U D' F U' D' R' D R' F //F2L
F B2 R' F' R F B' R F' R2 F R2 F' B' D' F D L D' L' //LL

33 moves

L2 F' R' F2 D2 R B2 U' R2 U' F U R U L2 B2 D2 (17f*)

L F D' L R' U D' F U' D' R' D R' F //F2L (14/14)
F' D' R' D R F2 (4/18) //leave 2+2 corner cycles and 3 edges

Give it to insertion finder:

Code:

L F D' L R' U D' F D' [@1] U' R' D R' D' R' D R F2
Insert at @1: R F' R' F R F' R' F R F' R' F
After the 1st insertion: L F D' L R' U D' F D' R F' R' F R F' R' F R F' [@2] R' F U' R' D R' D' R' D R F2
Insert at @2: F R' F' R' F' R' F R F R
Fewest moves: 30. 10 moves cancelled
The final solution: L F D' L R' U D' F D' R F' R' F R F' R2 F' R' F R F2 U' R' D R' D' R' D R F2

Any better idea?

porkynator · Jun 16, 2014

10461394944000 said:
3rd scramble from nottingham summer: L2 F' R' F2 D2 R B2 U' R2 U' F U R U L2 B2 D2 (17f*)

I found a 14 move pseudo-f2l but the LL was bad and I couldn't find anything good after that

L F D' L R' U D' F U' D' R' D R' F //F2L
F B2 R' F' R F B' R F' R2 F R2 F' B' D' F D L D' L' //LL

33 moves

L F D' L R' U D' F U' D' R' D R' F //F2L (14)
F' R F R' D2 R' D2 R //EO (8-4=4)
F2 U B' L2 B U' F' D2 F' //ZBLL (9)
F //Adjust (1-2=-1)

26 HTM

kinch2002 · Jun 16, 2014

ardi4nto said:
L2 F' R' F2 D2 R B2 U' R2 U' F U R U L2 B2 D2 (17f*)

L F D' L R' U D' F U' D' R' D R' F //F2L (14/14)
F' D' R' D R F2 (4/18) //leave 2+2 corner cycles and 3 edges

Give it to insertion finder:

Code:

L F D' L R' U D' F D' [@1] U' R' D R' D' R' D R F2 Insert at @1: R F' R' F R F' R' F R F' R' F After the 1st insertion: L F D' L R' U D' F D' R F' R' F R F' R' F R F' [@2] R' F U' R' D R' D' R' D R F2 Insert at @2: F R' F' R' F' R' F R F R Fewest moves: 30. 10 moves cancelled The final solution: L F D' L R' U D' F D' R F' R' F R F' R2 F' R' F R F2 U' R' D R' D' R' D R F2

Any better idea?

It's all very well plugging it into IF, but are those insertions realistic for a human to find? I don't have a cube right now, but they look complicated. I see that the first is just triple sexy, but would anybody really notice that while inserting?

p.s. I'll post my 24 later (it used the same 2x2x2 of course, just like everybody else's did)

Evan Liu · Jun 16, 2014

[NAR] 31.33 FMC Mean of 3 - Evan Liu

My solutions for the 31.33 NAR Mean of 3 I got at Nottingham Summer 2014

Scramble #1: B R2 L2 F R' L' U2 B U' D' R D2 L2 U' F2 U' L2 U

2x2x2: B R' U L F L2 F' (7/7)
2x2x3 + Pair: R' B L' D L (5/12)

Switch to inverse with premoves L' D' L B' R F L2 F' L' U' R B'

F2L-1: R2 D R D2 R' D' (6/18)
L3C: D B R B' R' D' (6-2/22)
Finish: U L2 U' R U L2 U' R' (8/30)

Final Solution: B R' U L F L2 F' R' B L' D L R U L2 U' R' U L2 U' D R B R' B' R D2 R' D' R2 (30)

I found this with <5 minutes left, and couldn't find any cancellations within the remaining time. IF says 27 moves was optimal for my skeleton.

Scramble #2: R B R D L2 U' B U D' L' F' B2 U2 R2 U R2 F2 U2 R2 U'

2x2x2: L' F2 L F' U' # F' L F (8/8)
2x2x3: U B' U R B' R' B' (7/15)
F2L-1: R2 U2 (2/17)
L4C: B' R' B R2 U R * U' (7/24)
Insert at *: R' U' R D R' U R D' (8-5/27)
Insert at #: U' B U F U' B' U F' (8-2/33)

Final Solution: L' F2 L F' U2 B U F U' B' U F2 L F U B' U R B' R' B' R2 U2 B' R' B R' D R' U R D' U' (33)

IF confirms 33 moves was optimal for my skeleton.

Scramble #3: D2 U2 B' R2 B' U2 B' U2 F' D' B R D' L2 F L' R F' L'

(Premove: F)
2x2x2: L F D' L (4/4)
2x2x3: R' D' F R F (5/9)
F2L-1: D' R2 D' R' D R (6/15)
F2L + EO: D' B R' B' R (5/20)
LL: R' B2 R D2 R D2 R' B2 D' R D' R' D (13-3/30)
Undo Premove: F (1/31)

Final Solution: L F D' L R' D' F R F D' R2 D' R' D R D' B R' B R D2 R D2 R' B2 D' R D' R' D F (31)

I found this within 10 minutes, the first of three 31-move solutions I found. Couldn't improve upon that, unfortunately.

Overall, could've been better in some spots, but I'm still very happy with this as a first successful mean.

kinch2002 · Jun 16, 2014

My 24 mover (=NR) at Nottingham Summer 2014 on Scramble 3
Scramble: D2 U2 B' R2 B' U2 B' U2 F' D' B R D' L2 F L' R F' L'
Premove: F
2x2x2: L F D' L (4)
2x2x3: R' D' F2 (7 + 1)
F2L (leaving 3 corners): D2 F D2 F' B D R' D' R2 B' D R D' (20 + 1)
Skeleton: L F D' L R' D' F2 * D2 F D2 F' B D R' D' R2 B' D R D' F (21)
Insert [F U2 F', D2] at * to cancel 5 moves

The mean was 26, 29, 24 = 26.33

Evan Liu · Jun 17, 2014

kinch2002 said:
My 24 mover (=NR) at Oxford Open on Scramble 3

lol wrong comp

Awesome solution though, wish I had seen that.

kinch2002 · Jun 17, 2014

Evan Liu said:
lol wrong comp
Awesome solution though, wish I had seen that.

Thanks, fixed.
The 'problem' with this scramble was the number of possibilities to investigate after the obvious first block. although I'm slightly surprised everyone came out with different solutions in the end.

Julian · Jun 19, 2014

scramble: F2 L2 D2 R' U2 B2 L' B2 R D2 R2 F L2 R U' L2 D2 U' B L'
inverse: L B' U D2 L2 U R' L2 F' R2 D2 R' B2 L B2 U2 R D2 L2 F2

F2L-1 in 12 on normal:

R L2 B L2 B'
L F L F L D2 F'

Tried stuff on normal and inverse, but couldn't find anything nice

Anyone have any ideas on a finish/modified start?

Brest · Jun 19, 2014

Julian said:
scramble: F2 L2 D2 R' U2 B2 L' B2 R D2 R2 F L2 R U' L2 D2 U' B L'
inverse: L B' U D2 L2 U R' L2 F' R2 D2 R' B2 L B2 U2 R D2 L2 F2

F2L-1 in 12 on normal:

R L2 B L2 B'
L F L F L D2 F'

Tried stuff on normal and inverse, but couldn't find anything nice
Anyone have any ideas on a finish/modified start?

x2 F U R U' R' U R U' R' U F' U' // EOLS to Aperm

Julian · Jun 21, 2014

@Rob Very nice, even cancels 3 moves according to IF. Well, now I know that case, haha.

A completed solve this time:
(premove D2) B R D L2 U2 L D' L F U2 L U2 R' B2 R' D2 R' B2 L'

L' F' L2 // square
R D2 // 2x2x2 (find premove)
U2 L F' // square
L2 U' F2 U' . F U L' // F2L-1 + pair in LL
U2 B L' B' L
B' U B L U L' // L3C

Insert [L', F R' F'] at . cancelling 2 moves.

Final solution (33): L' F' L2 R D2 U2 L F' L2 U' F2 U' L' F R' F' L F R U L' U2 B L' B' L B' U B L U L' D2

Meneghetti · Jun 24, 2014

São Paulo Open 2014
All my solves from my new SAR average! 38, 29, 30 = 32.33

38

I was running out of time and had no time to look for insertions. Solved last 4 corners in 16 moves without a single cancellation… IF gives 7 cancellations for 31.

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

Premove: R2 // corrects pseudoness
L' B' L2 U L2 U2 // 2x2x2
B2 R' // pseudo 2x2x3
R' B2 R // EO
D' B' D B D' B D B' D2 B2 D // AB4C
B D F D' B' D F' D' // corner 3-cycle
U' B D' B' U B D B' // corner 3-cycle
R2 // undo premove

29

Tied my own SAR single

IF gives one more cancellation for 28.

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

D' F R' // pseudo 2x2x2
F * U2 F' D // 2x2x3 (keyhole)
L' U' ** L' F' L F // F2L-1
B L' B' L U' // AB5C

insert at *: F' D2 F U' F' D2 F U // cancels 3 moves
insert at **: U R' D R U' R' D' R // cancels 2 moves

30

IF says optimal insertion

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

Premove: F // corrects pseudoness
U2 D L' U' F // pseudo 2x2x2
D2 L D' B2 // 2x2x3
D' F' D F // F2L-1
F B' L' B L F' // two pairs
L U' L D * L' D' U // AB3C
F // undo premove

insert at *: D' L U L' D L U' L' // cancels 4 moves

Results: http://cubecomps.com/live.php?cid=533&cat=15&rnd=1

kinch2002 · Jun 26, 2014

Meneghetti said:
São Paulo Open 2014
All my solves from my new SAR average! 38, 29, 30 = 32.33

Well done! Nice to see insertions being done well, and shame about the lack of time on the first solution. It makes me sad when people don't cancel any moves, so it's good to see a total of 9 moves being cut off (3 moves off the mean)

porkynator · Jun 29, 2014

I've just come up with a way to systematically find a good (blockbuilding) start quickly (if there's any), that probably many good FMCers already use:

For each corner, find the 3 matching edges to see if there is a short way to make a square or a 2x2x2 block; if any, take note, but first look at all the other corners and do the same. After that, for each of the nice squares/2x2x2s you've found look if you can make other blocks while building them (this should be easier since you've already looked for possible good starts from other blocks).

Well, nothing revolutionary, but the key idea is that you can see all possible easy 2x2x2s very quickly.
What do you think? Do you already use this strategy?

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