Weekly competition 2008-33

[MistArts]

yeah thats 12 moves optimal just like my g perm was

I got one move cancelled though.

 

[philkt731]

haha i iwsh i did. i had no cancellation and an AUF

 

[AvGalen]

FMC-lover? Try this week's FMC #203 competition at Per's site: http://fmc.mustcube.net/
amazing scramble, amazing solution(s)
Gus

WOW......... Arnaud you want sub 20 THERES YOUR CHANCE

I checked with cube explorer and optimal would have been 18 moves. That means that sub 20 is almost impossible!

I really don't consider the http://fmc.mustcube.net/ #203 easy, but I have found a great way to do it (after about 4 hours of puzzling, and I am not finished yet)

Scramble: D U' F2 U' R' F R2 B D' B R F B' U R' D2 L' R2 F2 B' U' B D B2 F2 U L F U' B2
(do premove D' to see what's going on)
2x2 block: B' L'
X-Cross: B' R D' R'
Double X-Cross + All edges oriented: R' U2 * R
Fix all edges while making sure that the bad corner at UFR get's broken up: R2 B2 U B2 u' B2 R2 u
Undo premove: D'
Insert first edge 3-cycle at the * : F' R' B' R F R' B R

That makes a partial solution of:
B' L' B' R D' R' R' U2 F' R' B' R F R' B R R R2 B2 U B2 u' B2 R2 u D' (26) and cancels to:
B' L' B' R D' R2 U2 F' R' B' R F R' B' U B2 D' R2 F2 (19) and

I am considering this my corner-3-cycle-insertion-training. There are soooooo many 3-cycles to go through (approximately 100, but I just skip the ones I don't think can be done in 8) and I have only done about half of those. I am still hoping for more cancellations on the first insertion and for even more cancellations on the second insertion (not likely)

Edit: 2 hours more filled with 3-cycles and I am very pleased with the end result. 2 3-cycles of 8 moves, cancelling 4 moves each for a total of 8 moves for 5 corners oriented and permuted. This was my first skeleton and I like it for "no time limit fmc". But I have to be realistic. Spending 6 hours on 1 fmc is crazy.

Final solution:
2x2 block: B' L'
X-Cross: B' R D' R'
Double X-Cross + All edges oriented: R' U2 ** R
Fix all edges while making sure that the bad corner at UFR get's broken up: R2 B2 * U B2 u' B2 R2 u
Undo premove: D'
Insert at *: B D2 B' U B D2 B' U'
Insert at **: F' R' B' R F R' B R

That makes a full solution of:
B' L' B' R D' R' R' U2 F' R' B' R F R' B R R R2 B2 B D2 B' U B D2 B' U' U B2 u' B2 R2 u D' (34) and cancels to:
B' L' B' R D' R2 U2 F' R' B' R F R' D2 B' U B D2 B D' R2 F2 (22)

And for "our" events:

2x2x2: 8.88 7.48 10.68 8.55 9.00 = 8.81
3x3x3: 27.63 22.63 26.04 29.36 23.86 = 25.84
4x4x4: 1:36.70 1:46.31 1:43.98 1:36.20 1:42.12 = 1:40.93
5x5x5: 2:10.82 2:16.40 2:15.59 2:29.45 2:45.39 = 2:20.48
6x6x6: 7:01.12 15:50.00 6:38.27 6:24.43 7:36.00 = 7:05.13
7x7x7: 8:34.63 8:59.04 9:22.43 9:42.85 9:00.43 = 9:07.30
2x2x2_bf: DNF DNF DNF = DNF
3x3x3_bf: 5:57.93 DNF DNF = 5:57.93
3x3x3_oh: 46.91 49.47 44.96 1:00.46 41.43 = 47.11
3x3x3_match: 4:44.80 3:06.34 1:28.13 1:35.31 1:23.02 = 2:03.26
3x3x3_fmc: F D L' F' U F L B' D2 L' D' L2 D L' D2 L D2 L F L2 F' L2 F L' F2 D' B D F D' B' D = 32
234-Relay: 2:10.13
2345-Relay: 4:44.42
23456-Relay: 10:44.07
234567-Relay: 23:33.07
Clock: 23.99 25.32 21.73 25.50 25.76 = 24.94
MegaMinx: 3:50.79 3:36.07 4:06.63 3:22.48 3:08.87 = 3:36.45
Square-1: 1:28.12 1:15.89 1:33.54 1:28.63 52.65 = 1:24.21

 

[philkt731]

ok Arnaud: WOW! 22 moves!?!?

 

[AvGalen]

Thanks Phil. 22 moves is crazy, but I only got that low because I spent so much time on it. The cancellations (which I worked for very hard) were crazy. From 34 to 22 means > 1/3 of all moves cancelled. I really like the part where I have B R R R2 B2 B

But I have gotten 22 before (http://www.speedsolving.com/forum/showpost.php?p=54314&postcount=28) within the hour and I got 18 on a very lucky scramble Lucas Garron gave me as a challenge (http://www.speedsolving.com/forum/showpost.php?p=76188&postcount=71)

And now it's time for me to get some sleep. I hope I can finally get a 2x (or at least sub 33) next weekend

 

[MistArts]

haha i iwsh i did. i had no cancellation and an AUF

Here's my sucky-ish solution anyway. For fmc.mustcube

(P)2x2x3 Block: B' L' F B' R L2 F2 L2 F' (9)
(P)F2L: U' B' U R' U2 R2 B . R' (17)
Adjust B face: B (18)
Undo Premoves: U D2 (20)
Insertion at .: B' L' B R' B' L . B R (28)
Insestion at second .: L2 R2 F' U2 L2 R2 D2 L2 R2 F L2 R2 (40)

Cancellations: First insertion in the F2L + Adjust B face, U' B' U R' U2 R2 B B' L' B R' B' L B R R' B would become U' B' U R' U2 R2 L' B R' B' L B2 (5 moves cancelled) In the beginning of the second insertion, L L2 becomes L'.

Solution: B' L' F B' R L2 F2 L2 F' U' B' U R' U2 R2 L' B R' B' L' R2 F' U2 L2 R2 D2 L2 R2 F L2 R2 B2 U D2 (34)

 

[Mike Hughey]

Nice 22 move solution, Arnaud!

About speedsolving, did you realize that I was only 0.32 seconds slower than you on 3x3x3 this week? And I actually did outdo you on a few speedsolving events: 6x6x6 (I think your cube must have more trouble popping than mine), megaminx, and square-1. I'm slowly getting faster at things. (But this was a lucky week for me on 3x3x3, and an unlucky week for you, judging from your typical times, so I know I still have a long way to go. Just look at my terrible 3x3x3 times in Cincinnati! Just awful!)

 

[ShadenSmith]

Well I guess I'd like to start joining in with this competition. Here's my first entry!

2x2x2: 12.96, 15.22, (18.50), 10.94, (7.58) = 13.04
I suck at 2x2x2.

3x3x3: 27.41, (20.15), 26.78, (27.93), 21.63 = 25.27
That sucked. My good cube (type a) was left in my car, so I was stuck with my type d. Lockups killed me.

4x4x4: 2:46.59, 2:54.25, 2:28.46, (3:11.41), (2:02.83) = 2:43.10
WOW. That was a lot faster than I've ever done it. My PB single was around 2:50 before this.

Multi-BLD: 0/2. First was completely messed up, no idea what went wrong. The second was off by all of the corners but no edges. No idea how that happened. 15:52, 9 min memo.

 

[fanwuq]

Arnaud, You are crazy!!!!
I don't think I can break 30 no matter how many days I try that scramble!

My solution: To FMC 203:
B2F2DRF2D'B'DF2 D'BD2U'R2DR2UB'R2BU2R'U2R'FR2B'RBR2F'U'
32 moves.
Found an OKish insertion and stopped trying. To many 33 move solutions.

And my new PB:
Scramble: R2FLU'L2DR'BD2BRU2B'L'F2B2D2RF2RL2D2B2D2B2L2
Solve: RFL2URD2FL'F2D2RU'R'U'R'U'RURB2UBR'B'R2B2R'
27 moves. I inserted a set-up + U perm that was 13 moves that cancelled 5 moves.
Other solution: RFL2UMBM'B2MBrD2FL'F2D2U'B2UBR'B'R2B2R'
28 HTM, but only 25 STM.

Cheap scramble: L'D'RB2UBR'L2FU2F'R'U2LB2R'F2RB2LU2F2U2F2
My solution: DRU'DLB'R'BF2R'LFR2L2B'U2BR'L
19 moves HTM, 15 STM, 23 QTM.

I believe I posted my solution for this contest earlier, it was 31 moves HTM.