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The FMC thread

Joined
Mar 7, 2013
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Location
New Zealand
WCA
2013ASBE01
My 31 tied OcR from WC13 :D

(Premoves L2 B) D' L2 R2 F2 D R2 D2 R D B2 F U' L B R F2 R2 D' U
F2 U2 B D' R (2x2x2)
L U B2 U' (2x2x3)
D B D B2 L2 B (EO+XXXcross)
L' D L (Finish F2L)
F D2 F' L' D F D F' D' L D2 (ZBLL)
L2 B (Undo Premoves)

A little bit lucky but still an OcR :3
I got NZ NR on the same scramble and had the same 2x2x2 block to start

Solution
F2 U2 B D' R (2x2x2)
L' D L2 D' B D B D B' (XX-cross)
U' L' U L' D' L' D (F2L-3)
B L B' L' U' L' U (F2L-4)
Fw (U L U' L')2 Fw' (OLL)
No Auf PLL skip

38 moves :D
(goal for worlds was to get one success sub-50, got both successes 47 and 38)
 
Joined
Sep 5, 2007
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WCA
2005LUCZ01
I wasn't in Vegas, but here is what I found at home:

First scramble: U2 R' U F' L2 F' B' U' R U' F' R2 F2 D2 R2 F2 D' B2 D2
Solution: x U' [U F2 U', B'] B' U D F' D2 L2 R U' R U' B2 U' R U' R2 U' R' U' R (22 moves found in 20 minutes)

Second scramble: D' L2 R2 F2 D R2 D2 R D B2 F U' L B R F2 R2 D' U
Solution: y D B' U' R F U2 L [L' D L, U2] U' F2 D R U2 R2 U2 R L' U2 (22 moves found in 80 minutes, backup was 33 moves)

Seems easier, when there is no pressure...
 
Joined
May 9, 2010
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Location
Hiroshima, Japan
WCA
2009OKAY01
YouTube
okayamat
My solutions from the world champs.

1st scramble: U2 R' U F' L2 F' B' U' R U' F' R2 F2 D2 R2 F2 D' B2 D2
1st solution: B R' B F U2 D B F' D2 F U2 F' D2 F' D' F D R F R F R U2 L2 U R U' L2 U (29 moves, but DNF by a written mistake)
Pre-scramble: R U' R

1st square: B R' B
2nd square: F U2
2x2x3 block: D B * U2
More 2 squares: F2 D' F D
All but 4 corners: R F R F
Correction: R U' R

I found this skeleton in 45 min. or so, and not enough time left for me
to search optimal insertions. Therefore I did:

Corner 3-cycle: R' U' L2 U R U' L2 U
Insert at *: F' D2 F U2 F' D2 F U2

I wrote down this solution in the final few minutes, and it resulted in DNF. :(

The optimal solution for the skeleton is 28 moves.

2nd scramble: D' L2 R2 F2 D R2 D2 R D B2 F U' L B R F2 R2 D' U
2nd solution: F2 U2 B D' R L' B' L' B L' B L B2 L' D2 B' D L' B2 R' F U2 F' R B L2 B2 D2 (28 moves)
30 min backup solution.

Pre-scramble: B D2

2x2x2 block: F2 U2 B D' R
Pseudo 2x2x3 block: L' B' L' B L'
More square: B L B2
More square: L'
Finish F2L: D2 B' D
LL: L' B2 R' F U2 F' R B L2 B
Correction: B D2

I knew this solution was not enough to win, but couldn't find any better solution in time.

Congrats to the winners with the excellent moves.
Great sum of podium: 25+26+26=77. (WR is 74 in BW Open 2013?)

FYI, Mean of 2 podium for the WC2013:
  1. Sébastien Auroux (29, 26 = 27.5)
  2. Jan Bentlage (28, 31 = 29.5)
  3. Timothy Sun (32, 31 = 31.5)

EDIT: Excellent solutions, Grzegorz.
I like the first solve with EO-first, looks natural and easy to see. :tu
 
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Joined
Dec 29, 2007
Messages
151
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WCA
2006CORR01
I doubt anyone cares to see mine but

(they accidentally gave some competitors the wrong scramble at first I got a 29 on it in like 30 mins =/)
"first scramble": U' B2 F2 R2 U2 R' U B U2 B2 F D' L' B2 L U2
"first solution": R B' F2 L U' L D' L U' L2 U L U R' U2 R2 U2 R' U' L U2 F U' F' L' B' U B U2
Not that great but had a 8 move LL I knew that canceled 1 move into the f2l which was pretty amusing.

first scramble: U2 R' U F' L2 F' B' U' R U' F' R2 F2 D2 R2 F2 D' B2 D2
solution: B' L2 B' D B R U F2 D F' U' F D R' U2 R' U' R F' U2 B U F U B' U

2x2x2: B' L2 B' D B
xcross +good setup: R U F (insert here) U' F R'
finish skeleton: U2 R' U' R F' U F (bruno here) U2

5 corner cycle and I just had nice insertions

and for the final scramble all my starts ended up with bad edges at the end so I gave up =/ the best I found was like 35 but half the moves were spent fixing the last 5 edges.
 

theZcuber

Premium Member
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Central NY, US
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2012PRAT02
Thanks. I sometimes use corner-edge pair commutators and find it difficult to use them without wide turns :p. I can do that if I have a lot of time left, but if I'm in a hurry I just need to write down the solution with wide moves...
Just remember that you can NOT use slice turns now. Rotations and wide turns are still there, but slices aren't
 
Joined
Nov 25, 2009
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Whitewater, WI
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2009JOHN05
YouTube
JackTheCuber
F' D' B' D' F2 D F' R F2 D B U' F2 B' R' B' D B' U F2 D2 R D2 L R

2x2: B D U R U R'
2x2x3 + 1 pair: B' U B2 U2 B U2 B
4th pair: U' L' U' L U2 F U2 F'
OLL: L F' L' F U F U' F' U

30 moves is ridiculous for me. I was about to give up on this too. Tried a different F2L about 30 minutes in.

Found in 37 minutes.
 
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Location
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2009OKAY01
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okayamat
scramble: R' F2 L' R' F2 U2 L' F2 L F2 L' B R' U' L U2 B' D R2 B'

2x2x3+EO: U2 B U2 F' U D' L' F' R'
edges+1 corner: F2 D2 F' D F2
14 moves

to bad the corners such though D:
According to IF:

2x2x3+EO: U2 B [@1] U2 F' U D' L' F' R'
edges+1 corner: F2 D2 F' D F2

Insert at [@1]: U' (R' B L2 B' R B L2 [@2] B') U
Insert at [@2]: U' F' [@3] U B' U' F U B
Insert at [@3]: F2 U B U' F2 U B' U'

resulted in 27 moves in total.

Now IF seems to be able to do 1-move setup.
 
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2009OKAY01
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okayamat
F' D' B' D' F2 D F' R F2 D B U' F2 B' R' B' D B' U F2 D2 R D2 L R

2x2: B D U R U R'
2x2x3 + 1 pair: B' U B2 U2 B U2 B
4th pair: U' L' U' L U2 F U2 F'
OLL: L F' L' F U F U' F' U

30 moves is ridiculous for me. I was about to give up on this too. Tried a different F2L about 30 minutes in.

Found in 37 minutes.
OLL: F' L' U L U L' U' L F

results in 29 moves.
 

Sebastien

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2008AURO01
Hi Baiqiang, while I appreciate the new features, I dislike that 8 movers are apparently not prefered when finding insertions. I often get 9 or 10 movers now with just 1 or 2 moves more cancelation at the same place where an 8 miover could be inserted with exactly the same outcome. I don't know the code of the IF, but wouldn't it be quite easy to set a higher priority on pur 8 movers?
 
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2012POOT01
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Rossiehoorn
Hi Baiqiang, while I appreciate the new features, I dislike that 8 movers are apparently not prefered when finding insertions. I often get 9 or 10 movers now with just 1 or 2 moves more cancelation at the same place where an 8 miover could be inserted with exactly the same outcome. I don't know the code of the IF, but wouldn't it be quite easy to set a higher priority on pur 8 movers?
My program is not yet ready suitable for release but it searches pure commutators first, then with set-up moves.. So it finds the 8 mover first, and if the total move count is lower than with a set-up move (even with set-up move you should be able to cancel more moves) it does not choose the pure commutator.
 

BQ

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2008DONG06
Hi Baiqiang, while I appreciate the new features, I dislike that 8 movers are apparently not prefered when finding insertions. I often get 9 or 10 movers now with just 1 or 2 moves more cancelation at the same place where an 8 miover could be inserted with exactly the same outcome. I don't know the code of the IF, but wouldn't it be quite easy to set a higher priority on pur 8 movers?
The feature for setups was just easily added by extending the algorithms. The IF finds one or more optimal insertions at a time. But it gives the first one found. Now I'm going to fix the problem. I want to print out all optimal results order by the moves of insertions. Do you have any other ideas?
 
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2011TRON02
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PorkyDays
from fmc.mustcube.net, round #462 (still running), no time limit
Scramble: F' B' L' R U2 F' D2 F2 U' D L' D2 U B' U D L D R' F2 B U2 F2 R' U2 F' D R' B' D'
R' U R2 L B2 //2x2x2 (5/5)
D R2 D' R //2x2x1 + one pair (4/9)
U' F //Pseudo F2L-1 + 2 pairs (2/11)
R' B * U' B' U2 R U //All But 3 corners (7/18)
* = B2 U F U' B2 U F' U' //Corners 3-cycle, 2 moves cancel out (6/24)
Final solution: R' U R2 L B2 D R2 D' R U' F R' B' U F U' B2 U F' U2 B' U2 R U (24 HTM)
I tied my no time limit PB :)
 
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