[Help Thread] FMC Discussion

[Zane_C]

What the f**k, while waiting for a download to finish I decided to do a very quick FMC solve (no writing anything down, just counting moves as I go along).

I found a 20 move solution in about 3 minutes. Very lucky obviously... I wouldn't say lucky scramble, but I was lucky in that my solution unintentionally worked out extremely well.

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

Spoiler

Solution:
2x2x2: L2 B' L' B R' F2 R
2x2x3 pseudo block: F' L' F' L'
F2L-1: D F D' F2 D' L'
F2L+LL: R F' R'

 

[MatejMuzatko]

What the f**k, while waiting for a download to finish I decided to do a very quick FMC solve (no writing anything down, just counting moves as I go along).

I found a 20 move solution in about 3 minutes. Very lucky obviously... I wouldn't say lucky scramble, but I was lucky in that my solution unintentionally worked out extremely well.

Happens :-D I know that feel, I found 27 move solution in 7.82 (while speedsolving)... I average around 50 on FMC and around 15 on 3x3... Hug me...

 

[Ollie]

What the f**k, while waiting for a download to finish I decided to do a very quick FMC solve (no writing anything down, just counting moves as I go along).

I found a 20 move solution in about 3 minutes. Very lucky obviously... I wouldn't say lucky scramble, but I was lucky in that my solution unintentionally worked out extremely well.

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

Spoiler

Solution:
2x2x2: L2 B' L' B R' F2 R
2x2x3 pseudo block: F' L' F' L'
F2L-1: D F D' F2 D' L'
F2L+LL: R F' R'

You mad bro

 

[kinch2002]

Can anybody find a good finish? i.e. sub-30

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

2x2x2: U L2 R U F (5)
2x2x3: D' L2 D2 B' L' (10)
F2L-1: D' B' (12)

Changing the B' to a B also gives an interesting continuation (14 move F2L-1+EO)
I keep finding 21/22 moves to PLL. Other than that I had 4 corners in 19 I think (so probably sub-30 actually), but that doesn't interest me so much given the great start.

 

[mycube]

Can anybody find a good finish? i.e. sub-30

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

2x2x2: U L2 R U F (5)
2x2x3: D' L2 D2 B' L' (10)
F2L-1: D' B' (12)

Changing the B' to a B also gives an interesting continuation (14 move F2L-1+EO)
I keep finding 21/22 moves to PLL. Other than that I had 4 corners in 19 I think (so probably sub-30 actually), but that doesn't interest me so much given the great start.

I found this:
U L2 R U F D' L2 D2 L' - your 2x2x3
D2 R' B' R
D2 L' D L D'
4 corners in 18 moves, if says 26 moves are optimal

 

[Torch]

Any tips for this FMC solve?

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

B' D F B* D//2x2x2
U' F U F2 L2//pseudo2x3x3
R U' R2 F' R//EO
F U F U F2 U F U F U' F U//All but 3 corners
L'//correct pseudo
Insert at* B L2 B' R' B L2 B' R

Solution: B' D F B2 L2 B' R' B L2 B' R D U' F U F2 L2 R U' R2 F' R F U F U F2 U F U F U' F U L' 35 moves

 

[Brest]

The Pre-scramble in the 3rd solution doesn't work. Maybe U R2 U2 is correct.

(U' R2 U2)
U2 B2 L' B2 R2 U2 L F2 R' F' L R2 B D2 R2 F U' R2 D

B2 D R'
U2 L' F' L2
R U' R'
View at alg.garron.us

 

[coldsun0630]

(U' R2 U2)
U2 B2 L' B2 R2 U2 L F2 R' F' L R2 B D2 R2 F U' R2 D

B2 D R'
U2 L' F' L2
R U' R'
View at alg.garron.us

Oh... I'm sorry
I think I scrambled wrong...

 

[coldsun0630]

My weird fewest moves solution.

/

Scramble: U R2 D B2 L2 D' L2 D B2 U2 L' F2 D' B' R U2 B2 R2 D
Solution: L' D L U R2 D L2 D' U2 B2 L' B R' B' L2 R2 U' B U B' L' B2 R B2 D B' D' B' D B' D' B2 D' R (34)

(Normal)
Pre-Scramble: D' R (2/2)
F2L-1: L' D L U R2 D L2 D' U2 B' [1] R' B' R' (13/15)
AB3C: R' L U' B U B' L' B2 R B2 D B' D' B' D B' D' B2 (17/32)

Insert at [1]: B' L' B R' B' L B R


Edit:

I found the solution from the scramble, but I got only 33 moves with it...
It looks nice, but I can't finish with any good solutions. (eventhough I tried on NISS..)
Anyone help?

/

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

Spoiler: Part of the Solution

1x2x2: F L D F2 D' (5/5)
Psuedo 2x2x3: B' U F' D2 F' (5/10)
Lots of Pairs: B' R2 B2 (3/13)

Spoiler: My Solution

(Normal)
1x2x2: F L D F2 D' (5/5)
Psuedo 2x2x3: B' U F' D2 F' (5/10)
Lots of Pairs: B' R2 B2 (3/13)
Correct Some Pieces: R' B R2 D [1] B' (5/18)
3 Cycle of Pairs: R D2 R' D B D2 B' D' (8/26)
AB3C: D2 R D2 (2/28)

- Insert at [1]: D F D' B' D F' D' B

Solution: F L D F2 D' B' U F' D2 F' B' R2 B2 R' B R2 D2 F D' B' D F' D' R D2 R' D B D2 B' D R D2 (33)

 

[porkynator]

I found 2 possible continuations:

1) Premoves: B R' D
B' R B R' U R2 U' * R //All but 2c2e
B R' D //Undo premoves
* = D' R2 U R' U' R2 D U R' U' R //2c2e, only 1 move cancels out (there are probably better insertions, but I don't know many way to do this at the moment)
Resulting in 33 HTM, or

2) R' B U R2 B R' B' R' U' R2 B' R D //All but 3 corners in 26
But sadly, according to IF 33 is optimal.

Can anyone help me with this?
Scramble: F2 D' F2 D' L2 D B2 U' L2 D2 U' R' D2 F D' B2 D R2 U2 R' L2 U'
Premove: F2
Pseudo Tripod: U' R2 U2 B' U2 R2 D' R L F' R U2 F B' U B F' (17)
L' U L gives all but 4 corners (28 optimal for IF), but anything better? Those 6 pieces left can also be solved with setup + sune somewhere, but I couldn't find anything.
P.S.: This pseudo-tripod isn't mine

 

[coldsun0630]

I found 2 possible continuations:
1) Premoves: B R' D

I found another solution from the premove. But it's still 34 moves..
...and how can I learn premoves?

Spoiler: The Solution

Pre-Scramble: B R' D (3/5)

1x2x2: F L D F2 [1] D' (5/8)
Psuedo 2x2x3: B' U F' D2 F' [2] (5/13)
Lots of Pairs: B' R2 B2 (3/16)
AB4C: B' R B U R U' R2 (6/22)

Insert at [1]: F' L2 F R F' L2 F R'
Insert at [2]: L B' R B L' B' R' B

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

Can anyone help me with this?

IF failed to solve with 'other', but it finds other solution.

Spoiler: corner twist, edge 3-cycle insertion

U' R2 U2 B' U2 R2 D' R [@1] L F' R U2 F B' U B F' U F2
Insert at @1: F' R' F B D2 B' L2 [@2] F2 R F' L F' L
After the 1st insertion: U' R2 U2 B' U2 R2 D' R F' R' F B D2 B' L2 [@2] F2 R F' L F' L2 F' R U2 F B' U B F' U F2
Insert at @2: R L' U2 R' L F2
Fewest moves: 32. 6 moves cancelled
The final solution: U' R2 U2 B' U2 R2 D' R F' R' F B D2 B' L R U2 L F' L F' L2 F' R U2 F B' U B F' U F2

 

[ben1996123]

okso people who are good at fmc do this

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

I got 35 but my solutation sucks alot

Spoiler

L F R' B2 R' B D2 F L' B L' B' L F' D2 R' B U R2 D' R2 U' R2 D R2 B' R B R' B2 R U' R U R'

 

[porkynator]

okso people who are good at fmc do this

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

I got 35 but my solutation sucks alot

Spoiler

L F R' B2 R' B D2 F L' B L' B' L F' D2 R' B U R2 D' R2 U' R2 D R2 B' R B R' B2 R U' R U R'

Quick attempt (~10 minutes).

Spoiler

L F R D' R D B2 //Xcross + 2 pairs (7)
R' B R' B' //F2L#2 (4)
R2 U' R U2 R //F2L -1 move (5)
U2 R2 U R U' R U2 R2 U' R' U R' U' R' //2GLL (14)
30 HTM

 

[whauk]

okso people who are good at fmc do this

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

lol i found this in ~15 min
double x-cross on inverse: F' U F' L2 F L
switch, going for the pseudo F2L: R
pair #3: B2 D B2 D' B R' B' R
finish everything: B L' D L D' B'
remove pseudoness: R'

everything:
R B2 D B2 D' B R' B' R B L' D L D' B' R' L' F' L2 F U' F
(22 HTM)

and surprisingly similiar to my european record (build double x-cross with 2 free pairs, switch and finish everything with very standard F2L-technique (plus everything took ~15 min)). only one move longer

 

[antoineccantin]

U2 R2 U R U' R U2 R2 U' R' U R' U' R' //2GLL (14)

This isn't working for me.

 

[CubeRoots]

This isn't working for me.

you need to look at the solution as a whole. this isn't just a 2GLL alg. It does work

 

[CubeRoots]

okso people who are good at fmc do this

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

I got 35 but my solutation sucks alot

Spoiler

L F R' B2 R' B D2 F L' B L' B' L F' D2 R' B U R2 D' R2 U' R2 D R2 B' R B R' B2 R U' R U R'

3 min solution

F scramble // 2x2x2
L B' U L2 B' // square
L U B L2 // two pairs
B2 L B2 L' B' U B U' B // finish f2l
U B U' B' U' D L U L' D' // ELL (28 moves)

or you could use IF on the skeleton: L B' U L2 B' L U B L2 B2 L B2 L' B' U B U' B F

L B' U L2 B' L U B L2 B2 L B2 L' B' U [@1] B U' B F
Insert at @1: U' R' L F U F' R L' U B'
Fewest moves: 23. 6 moves cancelled
The final solution: L B' U L2 B' L U B L2 B2 L B2 L' B' R' L F U F' R L' B F

 

[Sebastien]

FMC-Scramble from SH Open 2013 (today): R' D2 F2 L' U2 R U2 F2 U F D2 B F2 U2 F' L R2 F' R'

Nice start: F L' B' U2 B' D2

Can someone find a really good finish? It reminds me a lot of Okayama's start on his WR Solve.

My finish:

Spoiler

F2L: L U L2 U L' U2 L U' L' B'
ZBLL: B2 D F' L2 F D' B' U2 B' U2

Solution: F L' B' U2 B' D2 L U L2 U L' U2 L U' L' B D F' L2 F D' B' U2 B' U2

25 moves.

F L' B' U2 B' D2 L U L2 U2 L' U B' U' gives L5C in 14 but doesn't cancel much (26 is optimal).

F' U2 B2 R F2 B' L' U D L2 D' L R' U2 R' F R F' R gives L3C in 19 but this does also result in 25 moves...

 

[kinch2002]

FMC-Scramble from SH Open 2013 (today): R' D2 F2 L' U2 R U2 F2 U F D2 B F2 U2 F' L R2 F' R'

I just did your start, then carried on myself and found a nice solution first time. Then I typed it up before realising that it's the same as your real solution :fp

 

[porkynator]

I found this continuation:
L U L B'
R B' R' B2 U B' U2
That gives all but 2 edges and 2 corners in 17, but I'm a noob at inserting 2c2e swaps.