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[Help Thread] FMC Discussion

26 move PB!:

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

L2 R’ F U’ L R U2 F2 B2 D’ F’ // XXXcross (11)
U R2 U’ // F2L (3/14)
D B R B’ R D’ R2 D’ F D F’ // OLL (11/25)
R2 // PLL Skip + AUF (1/26)

Wow, that's cool that you got such a short solution, it bugs me that it was 26 moves and you didn't have to do any EO until the last layer, and then just got a skip D:
I found a non-lucky 30 move solution:
R' F* R B2 F2 R' D F2 L' U2 F // XXcross 9
U' B' U2 B U' // 4 corners left 5/16
*D' L D# R' D' L' D R
#U' L2 U R2 U' L2 U R2
Final: R' F D' L D U' L2 U R2 U' L2 U R D' L' D R2 B2 F2 R' D F2 L' U2 F U' B' U2 B U' 30 htm
 
Wow, that's cool that you got such a short solution, it bugs me that it was 26 moves and you didn't have to do any EO until the last layer, and then just got a skip D:
I found a non-lucky 30 move solution:
R' F* R B2 F2 R' D F2 L' U2 F // XXcross 9
U' B' U2 B U' // 4 corners left 5/16
*D' L D# R' D' L' D R
#U' L2 U R2 U' L2 U R2
Final: R' F D' L D U' L2 U R2 U' L2 U R D' L' D R2 B2 F2 R' D F2 L' U2 F U' B' U2 B U' 30 htm
Yep, I got to the LL and saw no edges oriented, so I solved with standard OLL to rescramble and profited
 
PB of 24 :D

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

on inverse:
U' B2 L' B' //2x2x1 (4/4)
U2 * R2 F' R' D' L F2 //2x2x3 (7/11)

Insert F' at * for better continuation. (1/12)
Then I undid the last 2 moves of the 2x2x3 (L F2), and finished F2L-1 with:
F2 R U2 R' //F2L-1 (4-2/14)
U2 L' B L B' //L3E (5/19)

skeleton on inverse: U' B2 L' B' U2 . F' R2 F' R' D' F2 R U2 R' U2 L' B L B'

insert U' F2 U D' L2 D at . cancelling 1 move for 24.

final solution on inverse: U' B2 L' B' U F2 U D' L2 D F' R2 F' R' D' F2 R U2 R' U2 L' B L B'
on normal: B L' B' L U2 R U2' R' F2 D R F R2 F D' L2 D U' F2 U' B L B2 U

Ending and insertion were both super lucky.
 
Got 29 on R F D2 B L' U' B2 R2 D F2 R2 U2 L2 F R2 B' R2 B' L2 B

With a fluky 13-move F2L on inverse:

F D L F D'
L U' F' L' F' L2 U' F2

Anything interesting to be done here?

EDIT: 32, 29, 28 --> 29.67 mo3
 
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Attention, this is from the running forum competition:

Inverse scramble: F' U2 B L2 D' R' B2 L F D' B2 D2 F2 L' B2 L' B2 U2 F2 R

EO: F' R D L

The fact that I couldn't find better than 26 with this start is really driving me crazy. :)

Can anyone else here do better?
 
Attention, this is from the running forum competition:

Inverse scramble: F' U2 B L2 D' R' B2 L F D' B2 D2 F2 L' B2 L' B2 U2 F2 R

EO: F' R D L

The fact that I couldn't find better than 26 with this start is really driving me crazy. :)

Can anyone else here do better?

i did F R D L for EO and found a 19 moves ab3c :P But couldn't find better than 26 too :eek:
 
My winning solution from Waseda Brain Challenge 2015.

Scramble: B' U2 L' U' R F' R' D2 R' U' B' R2 D R2 D F2 R2
Solution: R2 F2 D' B L2 D' L' D F2 L F' L2 F' L' F L U' L' B L F' L' B' R B' L' (26 moves)
30 min backup solution.

(Inverse)
Pre-scramble: B' D F2 R2 (makes 2 squares)

2x2x3 block: L B R' L F U

(Normal)
Pre-scramble: U' F' L' R B' L'

2x2x3 block: R2 F2 D' B
Orient edges: L2 D' L' D
F2L minus 1 slot: F2 L F'
All but 3 corners: L2 F' L' F L
Correction: U' * F' L' R B' L'

Insert at *: L' B L F' L' B' L F
 
i did F R D L for EO and found a 19 moves ab3c :P But couldn't find better than 26 too :eek:

My continuation led to an N-Perm in 14 moves (total), that I could transfor to L3C in 20, resulting in the 26. Still, there are so many blocks, there need to be something better. :D
 
Attention, this is from the running forum competition:

Inverse scramble: F' U2 B L2 D' R' B2 L F D' B2 D2 F2 L' B2 L' B2 U2 F2 R

EO: F' R D L

The fact that I couldn't find better than 26 with this start is really driving me crazy. :)

Can anyone else here do better?

On inverse:
F' * R D L
U' F' U2
On normal:
U2 D2 B D2 B2 U2
U F U' F U F2 U' F'

* = F L F' R2 F L' F' R2

25 HTM (insertion by IF)

What what your skeleton? And jpbrc's?
 
(inverse)
F R D L // EO
B' R2 B2 // pseudo 2x2x3
(switch)
U2 D2 // 2x2x3
F' L2 F2 U' F' U // F2L-1
F2 D F' D' // AB3C

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

*= R' D' L2 D R D' L2 D

Edit:
My continuation led to an N-Perm in 14 moves (total), that I could transfor to L3C in 20, resulting in the 26. Still, there are so many blocks, there need to be something better. :D
Did you try optimal N-perm?
Inverse:
EO: F' R D L
2x2x3: B' U F' U F2
F2L: U B2 U B' U
N-perm: U' B U2 R2 B U' R2 U B' R2 U2 B' U B2

Solution: F' R D L B' U F' U F2 U B2 U' R2 B U' R2 U B' R2 U2 B' U B2 (23)
 
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From 3x3x3 example solve thread:


Scramble: F' D' B2 F' L' D L B' R2 D2 R F' U2 L' D2 F2 L2 R B2 F L F' D' B' F2
My solution:
U' R U' orient corners,
B2 D B F' R D2 F' 6 edges,
R' B F' U2 F2 B2 D F D2 F2 B LSE.

Easy scramble, anyone try this?
 
PB mean of 3: 26, 27, 26 -> 26.33 :)

scrambles from a German forum.

1. Scramble D2 B R U' D2 B' U' F L2 U L2 F2 D2 L2 B' R2 L2 U2 F'

2x2x2: D2 L D L U' R
add Premove L for another 1x2x2
Pseudo-2x2x3: D' B'
Switch, to L5C: B' D F' D' F L' B' L' B

Skeleton: D2 L D L @ U' R D' B2 L B L F' # D F D' B L (17)
@ = L' D L U L' D' L U' (8-4)
# = F D' B D F' D' B' D (8-3)

Total: D2 L D2 L U L' D' L U2 R D' B2 L B L D' B D F' D' B' D2 F D' B L (26)

2. Scramble D2 U2 R2 B' U2 F D2 F' R2 D L' R' B D2 B2 U' L R' D2 R2

2x2x2: U' F B' R2 U2 R'
F2L-1: D B L' B L' B2 L'
L3C: D' L' D2 L D L' @ D L R D R' (24)
@ = L D' R D L' D' R' D (8-5)

Total: U' F B' R2 U2 R' D B L' B L' B2 L' D' L' D2 L R D L' D' R' D2 L R D R' (27)

3. Scramble B2 L' D2 R' B2 R2 D2 R2 D2 F D L B U2 R' D' B2 F' R'

2x2x3 & EO: U2 B2 R2 B L F' L' U' L' @
L5C: U L' R U2 L R' # U (16)
@ = L D L' U' L D' L' U (8-3)
# = R D2 R' U2 R D2 R' U2 (8-3)

Total: U2 B2 R2 B L F' L' U' D L' U' L D' L' U2 L' R U2 L D2 R' U2 R D2 R' U' (26)

(PB was 26.67)

You might want to check out the third scramble, it's pretty nice :)

Edit: I'm so stupid, this isn't even PB, just checked my signature lol

Edit 2: Just had another 26, so it is 26.33 of 5 PB. Possibly rolling a 30 next.

Scramble from the other German forum.
4. Scramble D L2 U2 B2 R2 B2 L2 D' B2 D' B' D F2 R' F L2 F2 D' L2 U2 L'

Premoves: B2 F' U'
2x2x3: U' # L R2 U2 D B'
L4C: R' D2 B' D2 B D' B' @ D B (17)

@ = B D' F D B' D' F' D (8-4)
# = U' R2 U L U' R2 U L' (8-3)

Total: U2 R2 U L U' R2 U R2 U2 D B' R' D2 B' D2 B D2 F D B' D' F' D2 B' F' U' (26)
 
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My 2nd and 3rd attempts from BASC 5: Everything But 2x2:

2. B2 R2 B' L' D F' R D F2 R' U R2 U' F2 D2 F2 R2 U' F2 R2
N: D' L2 F' L2 F L F L2 R D' // 2x2x3 [10]
I: R D' R D
R' U R' U' B2
R' B R2 B'
R' D' R D // Welp ****, I got AB3C [27]

Skeleton: D' L2 F' L2 F L F L2 R (1) D2 R' D R B R2 B' R B2 U R U' R D' R' D R' [27-1]

(1) [B U' B', D2]

Final: D' L2 F' L2 F L F L2 R B U' B' D2 B U B' R' D R B R2 B' R B2 U R U' R D' R' D R' [32]

3. U' R2 F2 U' L2 B2 U' F2 U F2 D F2 L2 B R' D' U2 B' D' B' F U'
U L
F' D' F U'
L' U L R2 // 2x2x3 [10]
Note: There were four different ways I saw to make this 2x2x3 in 10 moves based on these here. This one produced the coolest results, so I decided at 15 minutes I'd use it.

There was a lot I saw at this stage (like 10 more moves to F2L), but the best option I found 35 minutes in:
F' R' D' R D2 R2 D2 // AB5C [17]

Knowing how absolutely awful I am with finding corner commutators, and having never attempted to use a L5C skeleton in the past, I tried playing this one unbelievably safe.

Skeleton:
(1) U (2) L F' D' F U' L' U L R2 F' R' D' R D2 R2 D2 [17]

(1) [F' D2 F, U] // [8-2]
(2) [D, L' U' L] // [8-1]

Final:
F' D2 F U F' D2 F D L' U' L D' L' U L2 F' D' F U' L' U L R2 F' R' D' R D2 R2 D2 [30]
Optimal was 28.
 
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