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The FMC thread

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Thanks, and actually after the solve (during writing a
solution to submit) I noticed that.
I recognized it as a pair 3-cycle with a setup, i.e.,
D' (U' Lw2 U R U' Lw2 U R') D
and AUF. However, in order to save 2 moves by this,
I had to notice that before finishing F2L (because U U' is
not counted as 0 move in the linear solve regulation) and
I'm sure I did finish F2L before investigating the LL status...

Anyway I'm looking forward to seeing your solution in FMC477.
Don't forget to insert a backslash before ' in your comments!
EDIT: FYI, there's problem in submission, see my post.

After your advise, I submitted my solution once more just to be sure it would show up. Guess what? It wouldn't show. Can you make it more explicit how the Quote text has to be formatted? Such problem was not on fmc.mustcube.net in the past.
This is my solution that I posted for FMC #477
D L' U B' R' U' R U' R' B' U' B R F L' U' L' D2 L U L' D2 U' L2 (24)

On inverse scramble with pre-move D':
2x2x2: L2 [email protected] L2 F'
2x2x3: (R') B' U B (R) where inserted moves help with next corner-edge pair
all but 3 corners: U R' U R B U' L and undo premove D'
insert at @: D2 L U' L' D2 L U L'
I hoped for better move cancellations.

Mirek
 
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After your advise, I submitted my solution once more just to be sure it would show up. Guess what? It wouldn't show. Can you make it more explicit how the Quote text has to be formatted? Such problem was not on fmc.mustcube.net in the past.
This is my solution that I posted for FMC #477
D L' U B' R' U' R U' R' B' U' B R F L' U' L' D2 L U L' D2 U' L2 (24)

On inverse scramble with pre-move D':
2x2x2: L2 [email protected] L2 F'
2x2x3: (R') B' U B (R) where inserted moves help with next corner-edge pair
all but 3 corners: U R' U R B U' L and undo premove D'
insert at @: D2 L U' L' D2 L U L'
I hoped for better move cancellations.

Mirek
Wow! Quite a nice solution. Did you get it within 1-hour?

Maybe during May 7th~May 11th, submission program was changed, and since that time
this problem has remained unresolved to this date.
I don't know why this change was made. Everyone complains, and no one succeeded
in contacting Per and reporting this problem.

Anyway, the current submission program needs backslash before prime in your
comments (not solution). You should have submitted your solution like this:

Solution: D L' U B' R' U' R U' R' B' U' B R F L' U' L' D2 L U L' D2 U' L2
Quote: (Optional)
On inverse scramble with pre-move D\':
2x2x2: L2 [email protected] L2 F\'
2x2x3: (R\') B\' U B (R) where inserted moves help with next corner-edge pair
all but 3 corners: U R\' U R B U\' L and undo premove D\'
insert at @: D2 L U\' L\' D2 L U L\'
I hoped for better move cancellations.
 
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Joined
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Wow! Quite a nice solution. Did you get it within 1-hour?

Maybe during May 7th~May 11th, submission program was changed, and since that time
this problem has remained unresolved to this date.
I don't know why this change was made. Everyone complains, and no one succeeded
in contacting Per and reporting this problem.

Anyway, the current submission program needs backslash before prime in your
comments (not solution). You should have submitted your solution like this:

Solution: D L' U B' R' U' R U' R' B' U' B R F L' U' L' D2 L U L' D2 U' L2
Quote: (Optional)
On inverse scramble with pre-move D\':
2x2x2: L2 [email protected] L2 F\'
2x2x3: (R\') B\' U B (R) where inserted moves help with next corner-edge pair
all but 3 corners: U R\' U R B U\' L and undo premove D\'
insert at @: D2 L U\' L\' D2 L U L\'
I hoped for better move cancellations.

No, this took me more than an hour. Probably close to 2 hours. I know I need to warm up more and work on my speed.
It must be the two backslashes I missed to insert in the last row. :-(

Mirek
 
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Hi,

I wanna share with you my late solution for FMC from weekly competition 2013-46 here at www.speedsolving.com. I consider it quite interesting.
Scramble: B2 L' B2 U2 R F2 R D2 B2 F2 L B' R2 U' F2 R F2 R2 D U
F L B L F' L' [L2] _F [F] __D2 B' F D F' B R D @ R2 D R2 + 4 pairs cycle @ = (D' B D R' D' B' D ) done
=> F L B L F' L' F D2 B' F D F' B R B D R' D' B' D R2 D R2 F L2 (25 HTM)
Found in 15 min.
In brackets are suggested pre-moves that come up at that position. I had to use them to be able to see and backtrack the last 4 pairs.

Mirek
 

kinch2002

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If you are having big problems with Per's site, perhaps it's time for someone to make a new site to run a weekly FM comp on? Some ideas:

- 2 or 3 scrambles per week
- Shorter scrambles
- Images in the correct orientation
- Running averages, personal bests, overall records
 
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2012HORV01
Hungarian Open scramble:
L2 B2 D U R2 F2 D’ U2 R’ F2 D2 R’ U2 B’ U F’ L2 R’ U2
My (worst) solution:
F2 B2 U’ D’ F’ B’ U’ L D B U2 F’ R B2 F2 L’ U2 B’ R’ D2 B’ F L2 U’ R’ L F B U’ D’ F2 U’ D R2 L2 U 36 moves.
About 50 minutes I found this 29 move skeleton:
F2 B2 U’ D’ F’ B’ U’ L D B U2 F’ R B2 F2 L’ U2 B’ R’ D2 B’ F @ L2 D B’ F’ D2 B’ F2 all but 6 centres.
Unfortunately, there is little time left, so I used a simply ending.
Then I found a nice insertion in my home:
insert at @: S M S’ M’
F2 B2 U’ D’ F’ B’ U’ L D B U2 F’ R B2 F2 L’ U2 B’ R’ D U L R’ F’ B’ R U’ D’ R2 U’ D2 6 moves cancel.
This result is a bit disappointing, but better than DNF. I was too slow today.
 
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I'd like to introduce my notation for NISS solves, because I find it easy and practical. If you like it, we can use it (or something similar) as standard notation :)
The rule of thumb is: a '(' means "switch to inverse scramble using the inverse sequence of the moves found for normal scramble as premoves", a ')' means "switch to normal scramble (...)". An example will make it easy for everyone to understand:

Scramble: R2 F D2 F' R2 B' D2 B' F' L2 F U' F2 L' U2 B R' F D2 F D'
Solution: L2 D' L2 R B L F' L' F R' U2 F' U F U2 F U F' U' R' F' L F L' F' R2 F2 R2 (28 HTM)
Solution (written without this notation and with comments):
On normal scramble:
L2 D' L2 //2x2x1
On inverse scramble with premoves L2 D L2:
R2 F2 //Another 2x2x1
On normal scramble with premoves F2 R2:
L2 D' L2 //Two 2x2x1
R B R' //Pseudo 2x2x3
On inverse scramble with premoves R B' R' L2 D L2:
R2 F2 R2 F R //XX-cross + pair in slot
On normal scramble with premoves R' F' R2 F2 R2:
L2 D' L2 R B //XX-cross -1 move + pair ready (5/5)
L F' L' F R' //F2L -1 + pair ready (5/10)
U2 F' U F //F2L (4/14)
U2 F U F' U' R' F' L F L' R //LL (11/25)
R' F' R2 F2 R2 //Undo premoves, 2 moves cancel out (3/28)
Written with my notation and wi:
L2 D' L2 //2x2x1 (3/3)
(R2 F2) //Another 2x2x1 (2/5)
R B R' //Pseudo 2x2x3 (3/8)
(R2 F R) //XX-cross + pair in slot (3/11)
R L F' L' F R' //F2L -1 + pair ready, 1 move cancels out (4/15)
U2 F' U F //F2L (4/19)
U2 F U F' U' R' F' L F L' R //LL, 2 moves cancel out with premoves (9/28)
Much more concise.
 

Shah

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This is my first ever FMC try. I took an easy scramble and here is the 24 move skeleton I found.

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

F' R2 D' //2x2x2 Block (3/3)
R U' R2 F2 R //Add Square (5/8)
U F' B' L' U2 L B L2 F //F2L-1 (9/17)
y2 F' U' F U R U' R' // (7/24)

Can anyone help me with finding a good insertion to this skeleton?

I also need links from where I can find a list of optimal 3-cycle corner commutators?
 
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yesterday I got this DNF. First one hour attempt I have done.

pe-moves: B2 R'

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

U2 L D'//square 3/3
R2 U2 F//2x2x3 block 3/6
B' R D' R2 B2 R B2 R' B R//F2L#3 10/16
B L B2 L' B L B' L'//tripod 8/24
L B' L' B//edges 4/28
View at alg.garron.us

And I am left with two flipped edges. Two twisted corners and a A-perm. This seems like a good attempt since I suck at FMC. I am extremely happy with that 2x2x3 block.
 
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I have a hunch that FMC can help you be color neutral.
Upon returning to cubing this year, I started just on white. Today I decided to try out other sides, and found that I was still sub-20. The only time that I ever think about the cube without basing colors off the white and yellow sides, is in FMC. Could these be related?
 
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I am posting this solve here not because of the final movecount (30 HTM is an average result for me), but because I used a nice technique for the first time in it. I am using the NISS notation I explained a few posts above.

Scramble: R2 L2 D2 F2 D' R2 U' B2 D' F2 U2 F' D2 L' F U B F2 U2 F2 L
Solution U2 F B' L2 D2 F' U F2 L' B2 L F2 L' B' L' D L B' D L U L' D' L U2 R F2 R' L2 B (30 HTM)
U2 F B' L2 D2 //Two 2x2x1 (5/5)
(B' L2 R F2 R' F) //All but 4 edges and 4 corners (6/11)
Final skeleton (on normal scramble):
U2 F B' L2 D2 F' * R F2 R' L2 B

* U + L' B L' D L B' L # U' //4 edges (9/20)
+ F2 L' B2 L F2 L' B2 L //1 corner (5/25)
# L' D L U L' D' L U' //3 corners (5/30)

The first insertion is the cool thing. I was inspired by this: I conjugated all the edges on 1 side (U L' B L') so that I could solve them with only one move (D), and then I put them back (L B' L U'). Luckily, corners have been nicely affected by this insertion, so I was left with a 2-2 swap :)
 
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I am posting this solve here not because of the final movecount (30 HTM is an average result for me), but because I used a nice technique for the first time in it. I am using the NISS notation I explained a few posts above.

Scramble: R2 L2 D2 F2 D' R2 U' B2 D' F2 U2 F' D2 L' F U B F2 U2 F2 L
Solution U2 F B' L2 D2 F' U F2 L' B2 L F2 L' B' L' D L B' D L U L' D' L U2 R F2 R' L2 B (30 HTM)
U2 F B' L2 D2 //Two 2x2x1 (5/5)
(B' L2 R F2 R' F) //All but 4 edges and 4 corners (6/11)
Final skeleton (on normal scramble):
U2 F B' L2 D2 F' * R F2 R' L2 B

* U + L' B L' D L B' L # U' //4 edges (9/20)
+ F2 L' B2 L F2 L' B2 L //1 corner (5/25)
# L' D L U L' D' L U' //3 corners (5/30)

The first insertion is the cool thing. I was inspired by this: I conjugated all the edges on 1 side (U L' B L') so that I could solve them with only one move (D), and then I put them back (L B' L U'). Luckily, corners have been nicely affected by this insertion, so I was left with a 2-2 swap :)

In that case, to make it even more interesting (and less work), you can solve all 4 edges and 4 corners with "one move U" and, well, some more (9+9) preparation moves like this:
* B D R2 B R' B2 D U2 F' _U_ F U2 D' B2 R B' R2 D' B'
It is still 30 move total, though.

Mirek
 
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My solutions from Hokuriku Eve Open 2013.

1st scramble: D2 L' B L' F B2 U' F B R2 F' D' R2 U D2 L2 D B2
1st solution: D' F' D F' B2 U2 B F U' F2 L' F L U L2 F2 L' R U R' U' B L F2 L' B' U' L2 R2 (29 moves)
10 min backup solution.

Pre-scramble: L2 R2

1st square: (ready)
2nd square: D' F' D
2x2x3 block: F' B'
EO+More square: B' U2 B
EO+More square: F U' F2 L' F
Finish F2L: L U L
LL: L F2 L' R U R' U' B L F2 L' B' U'
Correction: L2 R2

I couldn't find any better solution. One of solutions I found is

Pre-scramble: B' U' B U2 L2 R2

F2L minus 1 slot: D' F' D * B' F'
Orient edges: F' L' F
All but 3 edges: L U L' U' L U L' U'
U-perm: U2 L B' F U2 F' B L U2
Correction: B' U' B U2 L2 R2

which resulted in 29 moves. (IF says
Insert at *: D' M2 D F' D' M2 D F
is optimal, which gives 28 moves, though)
2nd scramble: R F2 L2 R D2 L2 F2 D' B L2 D B D' F L2 B2 U L
2nd solution: U B U2 L' U L U2 F R' F R F2 U2 B L B' D' B D B2 U' L' F2 D F' R2 B L D2 L' (30 moves)
NISS solve.

(Inverse)
Pre-scramble: B2

1st square: L D2 L'
2nd square: B' R2
2x2x3 block: F D' F2 L U
F2L minus 1 slot: B2 D' B' D B

(Normal)
Pre-scramble: B' D' B D B2 U' L' F2 D F' R2 B L D2 L'

F2L: U B U' B
LL: B' U' L' U L B / B' U2 F R' F R F2 U2 B L
Correction: B' D' B D B2 U' L' F2 D F' R2 B L D2 L'

Both scrambles looked quite promising, should be at least Sub 28,
but my results were too poor for such nice scrambles.
I was in poor health because of the cold...
 
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My solution for this week's scramble. Tied PB. Optimal insertion.

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

I did premoves D' F' so scramble D' F' then the scramble
Thought it would be better. But whatever.
 
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Sebastien

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Today at Berlin Cube Day 2013 I finished my 35th and last official FMC attempt in 2013. In the beginning of 2013 I decided to submit a solve on all my attempts and managed to do so except for one anger DNF. So here is my Average of 2013:

32, 26, 26, 27, 27, 27, 26, 26, 30, (DNF), 28, 25, (23), 30, 31, 29, 27, 26, 31, 26, 29, 26, 31, 23, 25, 29, 25, 30, 29, 24, 32, 27, 27, 29, 26 = 27,64
 
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