The FMC thread

Discussion in 'General Speedcubing Discussion' started by blah, Jul 12, 2009.

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  1. ben1996123

    ben1996123 Banned

    4,972
    4
    May 17, 2009
    Ponyville
    WCA:
    2009WHIT01
    YouTube:
    ben1996123
    o so just solve edges then do inserciónes ok
     
  2. KiwiCuber

    KiwiCuber Member

    179
    0
    Mar 7, 2013
    New Zealand
    WCA:
    2013ASBE01
    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)
     
  3. Goater

    Goater Member

    15
    0
    Sep 5, 2007
    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...
     
  4. okayama

    okayama Member

    529
    8
    May 9, 2010
    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
     
    Last edited: Aug 1, 2013
  5. keemy

    keemy Member

    151
    0
    Dec 29, 2007
    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.
     
  6. tseitsei

    tseitsei Member

    1,361
    43
    Jan 12, 2012
    Tampere, Finland
    WCA:
    2012LEHT01
    Am I allowed to use f, l r.... moves in FMC
     
  7. theZcuber

    theZcuber Premium Member

    2,076
    1
    May 8, 2011
    Central NY, US
    WCA:
    2012PRAT02
    Yes, but it has to be Fw, Lw, etc. (reg 12a2)
     
  8. EMI

    EMI Member

    844
    23
    Apr 23, 2011
    Germany
    WCA:
    2011RHEI01
    YouTube:
    EMI94100
    ...and it is really uncool.
     
  9. tseitsei

    tseitsei Member

    1,361
    43
    Jan 12, 2012
    Tampere, Finland
    WCA:
    2012LEHT01
    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...
     
  10. theZcuber

    theZcuber Premium Member

    2,076
    1
    May 8, 2011
    Central NY, US
    WCA:
    2012PRAT02
    Just remember that you can NOT use slice turns now. Rotations and wide turns are still there, but slices aren't
     
  11. tseitsei

    tseitsei Member

    1,361
    43
    Jan 12, 2012
    Tampere, Finland
    WCA:
    2012LEHT01
    Yeah, I knew that slice moves were banned now. Just wasn't sure if they had banned wide moves also
     
  12. ben1996123

    ben1996123 Banned

    4,972
    4
    May 17, 2009
    Ponyville
    WCA:
    2009WHIT01
    YouTube:
    ben1996123
    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:
     
  13. JackJ

    JackJ Member

    862
    4
    Nov 25, 2009
    Whitewater, WI
    WCA:
    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.
     
  14. okayama

    okayama Member

    529
    8
    May 9, 2010
    Hiroshima, Japan
    WCA:
    2009OKAY01
    YouTube:
    okayamat
    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.
     
  15. okayama

    okayama Member

    529
    8
    May 9, 2010
    Hiroshima, Japan
    WCA:
    2009OKAY01
    YouTube:
    okayamat
    OLL: F' L' U L U L' U' L F

    results in 29 moves.
     
  16. BQ

    BQ Member

    41
    10
    May 30, 2011
    Beijing
    WCA:
    2008DONG06
    Yes! I added the feature some days ago.
     
  17. Sebastien

    Sebastien Premium Member

    800
    17
    Apr 22, 2008
    WCA:
    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?
     
  18. MarcelP

    MarcelP Member

    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.
     
  19. BQ

    BQ Member

    41
    10
    May 30, 2011
    Beijing
    WCA:
    2008DONG06
    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?
     
  20. porkynator

    porkynator Member

    1,129
    167
    Oct 27, 2010
    Belluno, Italy
    WCA:
    2011TRON02
    YouTube:
    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 :)
     
    Last edited: Aug 7, 2013

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