[Help Thread] FMC Discussion

okayama · Dec 9, 2017

Here are my solutions from FMC Asia 2017.

1st scramble: R' U' F U B2 D' B2 U B2 L2 R2 D B D2 L R2 U2 B U' R B2 F' R' U' F
1st solution: B L2 B' R' B L2 B' R B R2 B R' B' U2 B2 D2 B2 L2 B' U2 B U' L2 F B2 (25 moves)

30 min backup solution.

Pre-scramble: F B2

Orient edges: B R2 B R'
2x2x3 block: B' U2 B2 D2 B2
All but 3 corners: L2 B' U2 B U' L2

Insert at the beginning: B L2 B' R' B L2 B' R

I missed the optimal insertion, which should have resulted in 24 moves.

2nd scramble: R' U' F U L2 D' U2 F2 L2 U L' F2 D' F2 L2 U B F2 R D' L U2 R' U' F
2nd solution: U2 F' L2 F U2 R2 F D2 F' R2 U' B' U B U2 B2 L2 B2 D' B D L' D' F' U' F2 R' (27 moves)

10 min backup solution.

(Inverse)
Orient edges: R
2x2x2 block: F2 U F D
Orient edges: L
2x2x3 block: D' B' D B2 L2
Finish F2L: B2 U2 B' U' B U
LL: R2 F D2 F' R2 U2 F' L2 F U2

In the remaining time, I also found the following solution (27 moves).

(Inverse)
Orient edges: R
2x2x2 block: F2 U F D
Orient edges: L
2x2x3 block: B2 U' B' * U L2
All but 3 corners: U' B U B U2 B U' B' U B2

Insert at *: B R B' L' B R' B' L

3rd scramble: R' U' F U2 B2 L2 D2 U L2 U' B2 D F' L B L F' R D' B2 L' U' B2 R' U' F
3rd solution: F2 D' B2 R D B2 D' L' D L' U L' D' L U' L2 D2 F L F' L F L F' L D2 B' L F U R2 (31 moves)

Here is 20 min backup solution (32 moves).

Pre-scramble: F2

Orient edges: R2 U F' L B'
2x2x3 block minus 1 edge: L R' U L' U' D F2
F2L minus 1 slot minus 1 edge: U' L
More square: D' U2 * R' U' R
All but 3 corners: U R' U R U' D
Correction: F2

Insert at *: U2 B' D' B U2 B' D B

In the remaining time, I found the following solution.

(Inverse)
Pre-scramble: B2 D' R' B2 D F2

F2L minus 1 slot: R2 U' F' L' B D
Finish F2L: D L' F L' F' L' F L' F' D'
LL: D' L2 U L' D L U' L D' L D

Shuto Ueno won with 27 moves mean. Well done!
I hope other competitors also post their solutions here.

guysensei1 · Dec 9, 2017

My low-budget solution for the last solve of fmc asia, missed the first 2 attempts because I got stuck in customs for 4 hours, and was thus too tired/demoralised to try harder. Also i spent the first half hour doing nothing in this attempt, just resting.

R' U' F U2 B2 L2 D2 U L2 U' B2 D F' L B L F' R D' B2 L' U' B2 R' U' F

(B R' B R) U//2x2x2 (5/5)
L2 D' L2 F D' (D')//F2L-1 but missing the edge (6/11)
L' D F2 D' L' D F D'//F2L (8/19)
D' L' D L' D' L2 D//sune (7-1/26-1)
L D' L' D L' D' L2 D//another sune (8-1/33-1)

Lame

BQ · Dec 10, 2017

Here are my solutions from FMC Asia 2017.

1st scramble: R' U' F U B2 D' B2 U B2 L2 R2 D B D2 L R2 U2 B U' R B2 F' R' U' F
1st solution: D' F' R' B L' D L2 F2 R2 U R2 F2 B' R2 B L R' D R2 F' D2 B' D' B2 R' B' R L2 (28 moves)

pre scramble: L2
D' F' R * B L2 # //222
R' D R2 F' //f2l-1
D2 B' D' B2 R' B' R //L3E3C
*: R2 B L B' R2 B L' B'
#: L2 D L2 F2 R2 U R2 F2

Another solution: D' F' R B L2 R' D R2 F' B' L' D2 F' L' F' R' F L F' R2 F' L' F R' F2 L2 B D L2 (29 moves)
pre scramble: L2
D' F' R * B L2 # //222
R' D R2 F' //f2l-1
B' L' D2 F * L' F' L2 B D //L4C
*: F # R F' L' F R' F' L
#: F L' F' R' F L F' R

2nd scramble: R' U' F U L2 D' U2 F2 L2 U L' F2 D' F2 L2 U B F2 R D' L U2 R' U' F
2nd solution: L2 U R U' L2 U R' U2 F U F' U2 B U B2 U B U' R' U' L U R D2 R U R' D R F (30 moves)

F' R' D' R U' R' D2 R' U' L' U R U B' U' B2 U' B' U2 F U' F' U2 R U' L2 U R' U' L2
(Inverse)
F' * U' R' D //222
U' L' //edge orientation
U2 # B' U' B2 U' B' U2
F U' F' U @ //L6C
*: R' D' R U' R' D R U (8-5)
#: U' R U B' U' R' U B (8-5)
@: U R U' L2 U R' U' L2 (8-1)

IF says the optimal was 28 moves (three insertions were 8-5 8-4 8-4).

3rd scramble: R' U' F U2 B2 L2 D2 U L2 U' B2 D F' L B L F' R D' B2 L' U' B2 R' U' F
3rd solution: F D' B' R F2 U' F' D2 F U F' D' U2 B' D' B U' B2 U2 B R B R U2 R' B' R' U' R U (30 moves)

F D' B' R F # //pseudo 222 (LFD corner)
D U * B' D' B' U2 B R B //pseudo f2l-1
R U2 R' B' R' U' R U //L5C
*: U B' D' B U' B' D B (8-6)
#: F U' F' D2 F U F' D2 (8-2)

I will contact Chinese competitors and post other solutions here.

BQ · Dec 10, 2017

okayama said:
Here are my solutions from FMC Asia 2017.

1st scramble: R' U' F U B2 D' B2 U B2 L2 R2 D B D2 L R2 U2 B U' R B2 F' R' U' F
1st solution: B L2 B' R' B L2 B' R B R2 B R' B' U2 B2 D2 B2 L2 B' R B U' L2 F B2 (25 moves)

30 min backup solution.

Pre-scramble: F B2

Orient edges: B R2 B R'
2x2x3 block: B' U2 B2 D2 B2
All but 3 corners: L2 B' U2 B U' L2

Insert at the beginning: B L2 B' R' B L2 B' R

I missed the optimal insertion, which should have resulted in 24 moves.

2nd scramble: R' U' F U L2 D' U2 F2 L2 U L' F2 D' F2 L2 U B F2 R D' L U2 R' U' F
2nd solution: U2 F' L2 F U2 R2 F D2 F' R2 U' B' U B U2 B2 L2 B2 D' B D L' D' F' U' F2 R' (27 moves)

10 min backup solution.

(Inverse)
Orient edges: R
2x2x2 block: F2 U F D
Orient edges: L
2x2x3 block: D' B' D B2 L2
Finish F2L: B2 U2 B' U' B U
LL: R2 F D2 F' R2 U2 F' L2 F U2

In the remaining time, I also found the following solution.

(Inverse)
Orient edges: R
2x2x2 block: F2 U F D
Orient edges: L
2x2x3 block: B2 U' B' * U L2
All but 3 corners: U' B U B U2 B U' B' U B2

Insert at *: B R B' L' B R' B' L

3rd scramble: R' U' F U2 B2 L2 D2 U L2 U' B2 D F' L B L F' R D' B2 L' U' B2 R' U' F
3rd solution: F2 D' B2 R D B2 D' L' D L' U L' D' L U' L2 D2 F L F' L F L F' L D2 B' L F U R2 (31 moves)

Here is 20 min backup solution (32 moves).

Pre-scramble: F2

Orient edges: R2 U F' L B'
2x2x3 block minus 1 edge: L R' U L' U' D F2
F2L minus 1 slot minus 1 edge: U' L
More square: D' U2 * R' U' R
All but 3 corners: U R' U R U' D
Correction: F2

Insert at *: U2 B' D' B U2 B' D B

In the remaining time, I found the following solution.

(Inverse)
Pre-scramble: B2 D' R' B2 D F2

F2L minus 1 slot: R2 U' F' L' B D
Finish F2L: D L' F L' F' L' F L' F' D'
LL: D' L2 U L' D L U' L D' L D

Shuto Ueno won with 27 moves mean. Well done!
I hope other competitors also post their solutions here.

.
What a pity you didn't find the optimal solution in 1st attempt.
Your solution here has a mistake. The last R should be U2

okayama · Dec 10, 2017

BQ said:
.
What a pity you didn't find the optimal solution in 1st attempt.
Your solution here has a mistake. The last R should be U2

I was shocked beyond words, because I had enough time left but I overlooked it.
Sorry, on the mistake, which place did you point out precisely?

guysensei1 · Dec 10, 2017

Did anyone find/use this start for the first scramble? I found it after attempt 1 was over, while stuck in customs

R2 U2 L U2 D' F2 U2 F//2x2x3 with 2 pairs

EDIT: found a very good continuation

R2 U2 L U2 D' F2 * U2 ** F//2x2x3 with 2 pairs
(R2 B2 R' B' R)//3C3E in 13 moves

*=L U L' U'
**= U' R D' R' U R D R'

IF says optimal is 24 with standard insertions, but the one i showed is optimal with nonstandard, giving 22 as a final result

BQ · Dec 10, 2017

okayama said:
I was shocked beyond words, because I had enough time left but I overlooked it.
Sorry, on the mistake, which place did you point out precisely?

Sorry I didn't point it out. It's the 1st solution.

BQ · Dec 10, 2017

guysensei1 said:
Did anyone find/use this start for the first scramble? I found it after attempt 1 was over, while stuck in customs

R2 U2 L U2 D' F2 U2 F//2x2x3 with 2 pairs

EDIT: found a very good continuation

R2 U2 L U2 D' F2 * U2 ** F//2x2x3 with 2 pairs
(R2 B2 R' B' R)//3C3E in 13 moves

*=L U L' U'
**= U' R D' R' U R D R'

IF says optimal is 24 with standard insertions, but the one i showed is optimal with nonstandard, giving 22 as a final result

IF can find the 22 solution too: https://fewestmov.es/cube/if/688c470ee193eef979ec65e8eaecb558.cube

okayama · Dec 10, 2017

BQ said:
Sorry I didn't point it out. It's the 1st solution.

Thanks, I fixed it.

BQ · Dec 11, 2017

I got Saeed's AsR solution from the delegate:

1st scramble: R' U' F U B2 D' B2 U B2 L2 R2 D B D2 L R2 U2 B U' R B2 F' R' U' F
1st solution: B R2 B R' B' U2 B2 D2 F' D F2 R2 U' B' D B D2 R2 D U (20 moves)

EO+2x2x1: B R2 B R'
Two 2x2x2 blocks+ two pairs: B' U2 B2 D2 F' D F2
Switch to inverse: U' D' R2 (switching the pairs)
D2 B' D' B (inserting one pair)
U R2 (second pair and LL)

Final solution: B R2 B R' B' U2 B2 D2 F' D F2 R2 U' B' D B D2 R2 D U

uesyuu · Dec 11, 2017

Here are my winning solutions from FMC Asia 2017 !

1st scramble: R' U' F U B2 D' B2 U B2 L2 R2 D B D2 L R2 U2 B U' R B2 F' R' U' F
1st solution: B R2 B R B' L B R2 B' L' U2 B2 D2 F' D F2 D' F' U F U' R2 D R2 (24 moves)

B R2 B R' * // EO
B' U2 B2 // 222
D2 F' D F2 // F2L-2
D' F' U F U' R2 D R2 // L3C

insert at *=[R2 B' L B R2 B' L' B]

2nd scramble: R' U' F U L2 D' U2 F2 L2 U L' F2 D' F2 L2 U B F2 R D' L U2 R' U' F
2nd solution: L' U L B U2 L2 B' L' U' B L2 B2 F' U2 B U B' U2 F U' B F U' F' U2 D' R U F (29 moves)

(F' U' R' D) // 222
L' U L B U2 L2 B' L' U' // F2L-1
(U2 F U F') // pair
B L2 B' // Finish F2L
B' F' U2 B U B' U2 F U' B // pair comm

3rd scramble: R' U' F U2 B2 L2 D2 U L2 U' B2 D F' L B L F' R D' B2 L' U' B2 R' U' F
3rd solution: F' L F2 D' B' R' U B R D' R' U2 R D R' B' R U F' U' L2 B L B' L F' R2 F' (28 moves)

F' L F2 D' B' // 222
(F R2 F2) // 223
R' U B * U2 B' R // F2L-1
U F' U' F // Finish F2L
F' L2 B L B' L F // L3C

insert at *=[R D' R' U2 R D R' U2]

BQ · Dec 11, 2017

Here're the 1st and 2nd solutions from Chunhao Liu.

1st scramble: R' U' F U B2 D' B2 U B2 L2 R2 D B D2 L R2 U2 B U' R B2 F' R' U' F
1st solution: R D' F' L F2 L' B2 R' B R2 D' F D B2 D' F' D U L F R2 F' L' U' R2 U' (26 moves) (DNF)

R D' F' L F2 L' // 222
B2 R' B R2 # B2 // 223
U F R2 * F' // TEC
U' R2 U' // L4C
*: R2 F' L F R2 F' L' F
#: D' F D B2 D' F' D B2

But he failed to write down some moves on the sheet and got a DNF.

2nd scramble: R' U' F U L2 D' U2 F2 L2 U L' F2 D' F2 L2 U B F2 R D' L U2 R' U' F
2nd solution: U L B U' B D F' D' B2 D' B R U2 F B' R D2 F D F' D (21 moves)

U L // 122
B U' B' * D F' D2 B // pseudo 223
R U2 F B' R // f2l-1
D2 F D F' D // L3C
*: B2 D F' D' B2 D F D'

okayama · Dec 19, 2017

Here is Tomoyuki Hiraide's 23-move solution for the first scramble.

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

Start on normal

1x2x3 block: R2 U2 L U2
2x2x3 block: D' F2 U2 F

Switch to inverse

F2L minus 1 slot + square: R2 B2 R' B' R
All but 3 corners: U' L U' L' U2

Skeleton: R2 U2 L U2 D' F2 U2 F U2 L U L' * U R' B R B2 R2
Insert at *: R D' R' U R D R' U'

porkynator · Dec 19, 2017

My solve from Italian Championship 2017. It isn't Incredibly good (26), but I think it is quite nice.

Scramble: R' U' F U2 B L2 D2 U2 F2 R2 D2 B' R D' R U' L' U' L2 R F D' B' R' U' F
Solution: U2 B2 L' D L2 U' B D' F2 D B2 D F2 D' B D F2 U L' R' U R B L' D2 F (26)

(F' D2 L B') //EO + pairs (4/4)
(R' U' R) //2 squares (3/7)
U2 B2 //Match blocks (2/9)
L' D L2 //Square (3/12)
(L D2 U' F2 D U) //All but 4 corners (6/18)

Skeleton: U2 B2 L' D L2 U' * D' F2 U D2 L' R' U R B L' D2 F
* = B D' F2 D B' + D' F2 D //3c (3/21)
+ = B' D F2 D' B D F2 D' //3c (5/26)

It seems I have also found optimal insertions, which is crazy, considering that I didn't have much time left and I stopped with the first pass after finding the 5 move cancellation.

G2013 · Dec 20, 2017

25 MOVES PB
Done in Weekly speedsolving contest

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

(R' D R2 U') //2 X 2x2x1
(B' D F' D' R) //2x2x3 extension
(F B' L F B' U') //6 unsolved pieces

Backup solve: U B F' L' B F' R' D F D' B U R2 D' R (U' L U R U' L' U R' + B L' S' L2 S L' B') (32)

Corner insertion: U B F' L' B F' R' D F D' B U R2 D' (F' L2 F R F' L2 F R') R (15+8-2=21)
Edge insertion: U B F' L' B F' R' D F D' B (F U' F' U2 D2 B U B' D2 U2) U R2 D' F' L2 F (F' R L' U2 L R' F') R F' L2 F (21+7-3=25!!!!)

Final solution: U B F' L' B F' R' D F D' B U R2 D' F' R L U2 L R' F' R F' L2 F (25) HTM!!!!! 5 cancellations, beats my former tied PB of 27. wohoooooo!!!!

IF says my insertions were optimal

andersonaap · Dec 23, 2017

@campos20 has experinted a ideia
Of starting with edge orientation in 2 axis.

https://www.speedsolving.com/forum/threads/introducing-a-variation-for-fewest-move.67299/

What do you think about?

@Attila,

Attila · Dec 23, 2017

andersonaap said:
@campos20 has experinted a ideia
Of starting with edge orientation in 2 axis.

https://www.speedsolving.com/forum/threads/introducing-a-variation-for-fewest-move.67299/

What do you think about?

@Attila,

It seems to be a completely new approach. I really like it. Congrats for him.

NykoCuber1 · Dec 24, 2017

German forum comp scramble :

- 26.33 Mo3 -

// 1- R' U' F U' R2 F2 D2 R2 U' F2 R2 B L2 R B' U' R U' L R2 D' F' U' R' U' F

B2 L2 B R U R2 // Paires (6)
U R U2 // 222 (3)
( L D2 ) // F2L-1 (2)
U2 F' U2 F U R // 4E (5)

S = * B2 L2 B R U R2 U R F' U2 F U2 D2 L' (14)
* = R F2 D R D' R' F2 U' R' U

Great insertion = 24

.

// 2- R' U' F L B2 D2 B2 R U2 B2 L' F2 U2 B' R U B L' F' R2 F2 D2 R' U' F

( R2 L' B F L ) // 222 (5)
B2 R' D' R // P223 (4)
( R ) // 223 (1)
B D B2 // F2L-1 (3)
( L' D L ) // F2L (3)
( F D F' D' F' R F L D2 R' L' D2 F' B' D2 F B ) // LL (17) = SUPER Long o_O

- 30 - Who has better ?

// 3- R' U' F U B2 F2 R2 D R2 U B2 U' R D2 R' B D' F R B2 R2 B' D R' U' F

( R' U L' U2 B' ) // EO (5)
U' R D' R D L' U2 L' D' // F2L (9)

D L' U' L D' F L' F' L' U F L2 F' L2 // LL (Niklas + ZBLL) (13)

- 25 -

(I am the French NR holder with 28.00 Mean and 26 Single.)

MERRY CHRISTMAS

!

obelisk477 · Dec 24, 2017

okayama said:
My hats off to you, Sébastien. I couldn't choose a proper face mark from the list. :confused: :tu :fp

Now I update the history for the hardest scramble (list those who wrote down a full solution in this thread).
Scramble: F U' F2 D' B U R' F' L D' R' U' L U B' D2 R' F U2 D2

35 HTM by Conrad (maybe first try, within 1-hour?)

34 HTM by Tomoaki (within 1-hour) and shorten Conrad's solution to 32 HTM (no time limit)

Another 32 HTM solution by Tomoaki (no time limit)

31 HTM by Guus (within 1-hour)

30 HTM by Tomoaki (no time limit)

30 HTM by Attila (no time limit)

32 HTM by David (no time limit)

29 HTM by Sébastien (within 1-hour)

If there's any omissions/missings, please let me know the solution.

In addition to the hardest scramble, I would like to share some hard scrambles here (Sébastien said in his post).

Dutch Open 2009: R2 D B2 U B2 D B' D' R' U' F' D2 B2 R D L' B' F*

by Cielo: L' R2 B2 D2 B2 R' B L' D' U F' L' F2 D' R2 B' U2 R F2 U'*

FMC336: F' R U D' L2 F' B' U' B2 F2 L R' U D B2 F L R' B R' B D F2 R' D2 F' B' D U2 R

FMC310: U' D2 L R' F2 R B D' F' B2 U' D' F' R2 L2 F U B' D2 U' B' L F2 U R D' B F R' U'

FMC307: L' D B' D2 F' B U D' R F' D F' L B' D R' L' D F2 L D B2 F' U' L' R2 B' F L2 R

FMC283: U' D2 B U L' B' F2 D2 L R U2 F' R' L2 D U2 F2 B' D' L' B' F2 U R B' F' R' U' B2 F2*

FMC280: U' F2 U' D2 B2 U' B' F U' B L' U2 D' L' F2 B D2 B' L' B F R D R2 U R' F' U2 D R2

FMC279: U' F' U2 B' L D' U F2 L2 B' U2 F2 B2 R U' B L U F' B' D U B R' B2 F R2 D2 L R2*

FMC272: D2 L D' L2 U R' L2 B L R2 F D2 L R B' R F' R B' U' D L2 B' R D' R2 L2 F2 U' B*

Taken from this post and this post. Cielo's scramble may be the hardest in this list.
The mark '*' at the end means that no one has achieved Sub 30 AFAIK. Be first!

For FMC272 in this hardest scramble list, I just found a linear 27. Maybe it's the first sub-30 for this scramble? Not sure

(L2 D F2 D’ R’ D) // 2x2x2 (6/6)
(F’ L F) // 2x2x3 - 1 edge & 3 pairs (3/9)
(B L B2 L2 B2 L’) // F2L -1 (6/15)
(B R B’ R’ B) // last 3 pairs (5/20)
(B2 L B’ U’ B2 U B L’) // block commutator (8-1/27)

L B’ U’ B2 U B L’ B R B R’ B’ L B2 L2 B2 L’ B’ F’ L’ F D’ R D F2 D’ L2

Emilien · Dec 25, 2017

Dutch Open 2009 : R2 D B2 U B2 D B' D' R' U' F' D2 B2 R D L' B' F

D' L F2 U' F2 B L' // Blocs (7)
U' F U' R F' R // 3E3C (6)

D' L + F2 U' B F2 - L' U' F U' R F' R (13)

+ L' B' L F2 L' B L F2 (8-4)
- F2 U2 B2 R' B2 U2 F2 L' (8-3)

D' B' L F2 L' B L U' B U2 B2 R' B2 U2 F2 L2 U' F U' R F' R (22)

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