[Help Thread] FMC Discussion

[JasonK]

U2 L' B2 F2 L' U2 F2 R' U2 R' D2 F U2 B U R D2 U F2

I don't FMC much, but I just got this scramble and I'd be interested to see how the pros solve this - looks like it has some potential

 

[IanTheCuber]

Well, all I know FMC-wise right now is that I am absolutely horrible at it...and that the record FINALLY reached God's Number. Congrats to Tomoaki Okayoma on a 20 move WR!

EDIT: A reply to WTF2L?: I got F2 B' U2 F' L F2 B u R' D B R B' D' B' D B D R D' R' D' L D L' F D L D' L' F' D z2 R' U' R F2 R' U R U F2 U' F2 U' F2 U

LOLOLOL 46 moves?!

 

[okayama]

U2 L' B2 F2 L' U2 F2 R' U2 R' D2 F U2 B U R D2 U F2

I don't FMC much, but I just got this scramble and I'd be interested to see how the pros solve this - looks like it has some potential

10 min quick attempt:

Finish F2L: F2 U' R' U' F' L B2 L [@1] B L B2 F2

The rest can be solved linearly by Sune & AntiSune combination:
LL: D R2 D' R' D R' D' / F R F' R F R2 F' R

but leaving 2 twisted corners is better.

All but 2 twisted corners: B R2 [@2] B' R' B R' B' R'
Insert at @1: L F L' B L F' L' B'
Insert at @2: R F R' B' R F' R' B
(with the aid of insertion finder)

Final solution: F2 U' R' U' F' L B2 L2 F L' B L F B' R' F R' B' R F' R2 B R' B' R' (25 HTM)

Not so good for this nice scramble, but this was just a quick attempt.

EDIT: Thanks to IanTheCuber!

 

[Brest]

US Nationals 2012

1st scramble
U' R' D' B' L' F R F2 D F' L2 U R2 L2 U' R2 B2 D F2 U2 R2

2nd scramble
L2 D F2 R2 F2 D2 U' B2 U B2 R2 B' L2 B' D' B D R' D U'

 

[okayama]

US Nationals 2012

1st scramble
U' R' D' B' L' F R F2 D F' L2 U R2 L2 U' R2 B2 D F2 U2 R2

2nd scramble
L2 D F2 R2 F2 D2 U' B2 U B2 R2 B' L2 B' D' B D R' D U'

15 min quick attempt for the 2nd scramble, believing X-cross gives a nice skeleton. (judging from the results)

All but 3 corners: U R' L' D L F U2 F2 D2 F2 D F' D2 R D R' D R D R' F' D F D
All but 3 corners: U R' F L' D L U2 F' U' F D2 F' U R D' R' F D2 F' D2 F D F' D2

The former one gives 30 HTM with a proper insertion, and the latter one gives 28 HTM.

EDIT: also tried 1-hour solve using my usual approach:

Spoiler

Pre-scramble: F'

XX-cross: U R' D' L' D2 L F U2
c/e pair: D' R'
More square: D2 R D R
More square: D2
All but 3 corners: R2 D' R D'
Correction: F'

Insert at the beginning: B D' B' U B D B' U'

Final solution: B D' B' U B D B' R' D' L' D2 L F U2 D' R' D2 R D R D2 R2 D' R D' F' (26 HTM)

 

[irontwig]

US Nationals 2012

1st scramble
U' R' D' B' L' F R F2 D F' L2 U R2 L2 U' R2 B2 D F2 U2 R2

2nd scramble
L2 D F2 R2 F2 D2 U' B2 U B2 R2 B' L2 B' D' B D R' D U'

Tricky scrambles, might have DNF'd if I was there.

 

[Attila]

The 2nd. scramble seems lucky for me . I foumd a 8 move solution for corners:
B’ D’ R’ D’ R D2 B2 R2
but I'm too tired to continue now...

 

[Cubenovice]

1st one has this easy 2x2x2 with worst continuation ever...
Perhaps this explains the best solution in 34 htm

 

[kinch2002]

US Nationals 2012

1st scramble
U' R' D' B' L' F R F2 D F' L2 U R2 L2 U' R2 B2 D F2 U2 R2

2nd scramble
L2 D F2 R2 F2 D2 U' B2 U B2 R2 B' L2 B' D' B D R' D U'

1. F2L-1: U R' B' L D U F U' F' B' R' B' R (13)
Couldn't finish a good skeleton straight away so just gave up because I need to get to bed Check out the different ways to finish the F2L-1 after the first 9 moves too.

2. Premove F'
2x2x3+EO: U R' D F D' L' D L U2 (9+1)
F2L: R' D' R2 D2 R2 D' R (16+1)
3 corners left R' D' R D' R' D2 R D2 (21+1)
IF gives 27 moves total with an insertion right at the beginning so wouldn't have had any problem finding that one.

You can get a 7 move 2x2x3 using premoves F' U
2x2x3: U R' D F U (5+2)

 

[okayama]

US Nationals 2012

1st scramble
U' R' D' B' L' F R F2 D F' L2 U R2 L2 U' R2 B2 D F2 U2 R2

2nd scramble
L2 D F2 R2 F2 D2 U' B2 U B2 R2 B' L2 B' D' B D R' D U'

1. F2L-1: U R' B' L D U F U' F' B' R' B' R (13)
Couldn't finish a good skeleton straight away so just gave up because I need to get to bed Check out the different ways to finish the F2L-1 after the first 9 moves too.

2. Premove F'
2x2x3+EO: U R' D F D' L' D L U2 (9+1)
F2L: R' D' R2 D2 R2 D' R (16+1)
3 corners left R' D' R D' R' D2 R D2 (21+1)
IF gives 27 moves total with an insertion right at the beginning so wouldn't have had any problem finding that one.

You can get a 7 move 2x2x3 using premoves F' U
2x2x3: U R' D F U (5+2)

Nice block-building start for the 1st scramble.
My linear continuation:

Your start: U R' B' L D U F U' F'
Pseudo 2x2x3 block: B
More c/e pair: L' D2
More square: L' D2 L2
More square: D2
All but 2e2c: L2 B' L B L' B
J-perm: B2 U' B' U B' R2 F D' F' R2

31 HTM, but good enough for the hard scramble.

 

[TMOY]

The 2nd. scramble seems lucky for me . I foumd a 8 move solution for corners:
B’ D’ R’ D’ R D2 B2 R2
but I'm too tired to continue now...

I also found a nice solution for the corners of the first one: F2 U L' U' L' U2 L U2 L2 U'. But continuation just sucks, and edge control during corners doesn't look very promising either..

 

[BQ]

The 2nd. scramble seems lucky for me . I foumd a 8 move solution for corners:
B’ D’ R’ D’ R D2 B2 R2
but I'm too tired to continue now...

just for fun:

B' [@1] D' R' D' R D2 B2 R2
Insert at @1: U' R' B' R U D' F' R F D
After the 1st insertion: B' U' R' B' [@2] R U D' F' R F R' D' R D2 B2 R2
Insert at @2: F' R U D' F' L F U' D R'
After the 2nd insertion: B' U' R' B' F' R U D' [@3] F' L R F R' D' R D2 B2 R2
Insert at @3: U2 F' R L' U B2 U' R' L F
After the 3rd insertion: B' U' R' B' F' R U' D' F' [@4] R L' U B2 U' L2 F R' D' R D2 B2 R2
Insert at @4: F' L' F R L' U' L U R' L
After the 4th insertion: B' U' R' B' F' R U' D' F2 L' F R L' U' L [@5] U2 B2 U' L2 F R' D' R D2 B2 R2
Insert at @5: L2 D2 F' R2 D2 L2 B' U2
Fewest moves: 30. 26 moves cancelled
The final solution: B' U' R' B' F' R U' D' F2 L' F R L' U' L' D2 F' R2 D2 L2 B U' L2 F R' D' R D2 B2 R2

 

[okayama]

Encountered in speedsolving.

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

Pre-scramble: D2

Nice start: B R L U2 D B' U2 L D' L'

Could anyone see any good continuation?

EDIT: found

Spoiler

Nice start: B R L U2 D [@1] B' U2 L [@2] D' L'
All but 4 corners: L' F' L F2 L' F L
Correction: D2

Insert at @1: D2 B' U' B D2 B' U B
Insert at @2: R' D' L2 D R D' L2 D

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

 

[Attila]

I also found a nice solution for the corners of the first one: F2 U L' U' L' U2 L U2 L2 U'. But continuation just sucks, and edge control during corners doesn't look very promising either..

Try solve with centres:
F2 U L’ U’ L’ U2 R B2 L2 B’
if this invert, (B L2 B2 R’ U2 L U L U’ F2) you got the corners solution for inverse scramble, which gives more chance for lucky start.

 

[Evan Liu]

US Nationals 2012

2nd scramble
L2 D F2 R2 F2 D2 U' B2 U B2 R2 B' L2 B' D' B D R' D U'

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

X-Cross: L' F' D' F D' U' B2 D (8, 8)
Pair#2: L F' L' (3, 11)
Rest of F2L, leaving 3 corners: F R F2 R' F D' F' D2 F2 D' (10, 21)

Found this with less than 5 minutes left, so didn't have time to look for insertions; DNF'd anyway (probably inverted incorrectly somewhere).
Insertion finder says no moves would have been cancelled, so that's a slight relief...

 

[PandaCuber]

I was wondering if you guys could help me out with my FMC 'method'.
I am using classic Roux, no tricks or shortcuts and im noticing that my LSE is horrible. (usually the step with most moves)
Is there another way I can FMC using the 2 roux blocks? Or maybe just the FB?

 

[5BLD]

F2B=> insert moves to leave 3 corners
Insert more

Or you can simply do FB=>Corners and insert comms.
There isn't really anything wrong with Roux LSE, as long as you make it full or Rw turns it's okay or inserting M moves in F2B or CMLL. OLLCP can be used to force orientation skips, and you can use an insertion to solve ULUR. Step 4c can use Rw turns.

 

[irontwig]

I was wondering if you guys could help me out with my FMC 'method'.
I am using classic Roux, no tricks or shortcuts and im noticing that my LSE is horrible. (usually the step with most moves)
Is there another way I can FMC using the 2 roux blocks? Or maybe just the FB?

Here's decent attempt:
http://www.speedsolving.com/forum/s...lve-quot-Game!&p=770860&viewfull=1#post770860

Most of the time Snyder/Heise produces better solutions though.

 

[cubernya]

D U2 R2 U' R2 F' U B' L2 F2 D L' F' L' D' R U R2
R2 U' R' D L F L D' F2 L2 B U' F R2 U R2 U2 D'

On inverse
U2 B D' B L D' L2 B2 // 2x2x3 (8)
U' R U2 F' U' // F2L-1 (13)

On normal
U F U2 R' U B2 L2 D L' B' D B' U2 // Premoves (13)
R2 B U F U' F' B' R2 // F2L (8+13)
F // Align edges (9+13)

R2 B @ U F U' F' B' R2 F U F U2 R' + U B2 L2 D L' B' D B' U2
@ = F' D' F U F' D F U' (3 cancelled)
+ = R' D R U2 R' D' R U2 (2 cancelled)
Final: R2 B F' D' F U F' D F2 U' F' B' R2 F U F U2 R2 D R U2 R' D' R U' B2 L2 D L' B' D B' U2 (33)

Could've been much better, but I found the second insertion with 2 minutes left
Although I'm very happy that I found those insertions...I know all optimal L4C cases and I know that case is 13 turns (and insertions with cancellations is 11, so took 2 turns out)

 

[PandaCuber]

My new FMC PB! Tell me what you guys think!
Scramble from weekly comp 32
F' D2 R' U D' F' R2 L' B' R2 B2 U2 R2 D' R2 U2 F2 U B2 D

U B R F U' //FB
z2y' r' U' R U r2 U R' U' R2 B' R' B //NonMatching SB, with Sexy insert
M' U2 M U' M U' M' U' r R //2.5 Look LSE with several cancellations
alg.garron

Freakin 27 MOVES!!!! I cant believe it.
This is more than 10 moves less than my previous PB.