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The FMC thread

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

  1. Well, this is in topic, so I'll ask you:
    What online website do you use (if you use one) to compete on FMC online?
    I know http://fmc.mustcube.net/ and http://rubikfm.es but they doesn't work for me, Google Chrome says "The webpage is not available".
    What do I do then?
     
  2. porkynator

    porkynator Member

    1,193
    315
    Oct 27, 2010
    Belluno, Italy
    WCA:
    2011TRON02
    YouTube:
    PorkyDays
  3. Thanks!
    ...
    How can I edit the wiki? Because that link is not in the FMC article...
     
  4. Bubtore

    Bubtore Member

    98
    19
    Mar 18, 2012
    Vevey, Switzerland
    WCA:
    2012BUBE01
    YouTube:
    Bubtore
    The solution I've found :

    F2L-1 // F2 U F' U B U' B2 # R' L2 U2 L' R2
    Pseudo Tripod // D B D' B'
    L3C // L2 F L F' L

    # B L2 B' R' B L2 B' R

    Solution // F2 U F' U B U' B' L2 B' R' B L2 B' L2 U2 R2 L' D B D' B' L2 F L F' L - 26 Moves

    and Laura's cool finish after my F2L-1 :
    L' D L D2 B D R D' R' D' B' D2

    Thus giving a deservedly short solution :
    F2 U F' U B U' B2 R' L2 U2 R2 L2 D L D2 B D R D' R' D' B' D2 (23 HTM)
     
  5. porkynator

    porkynator Member

    1,193
    315
    Oct 27, 2010
    Belluno, Italy
    WCA:
    2011TRON02
    YouTube:
    PorkyDays
    I don't think so, but a new round will start in a few (7-8?) hours.
     
  6. jpbrc

    jpbrc Member

    12
    1
    Aug 12, 2013
    My 25 moves solution from "Brasileiro Etapa de Inverno". New SAR :D

    Scramble: L' U2 D' L' U2 B' D B' L U2 F2 R2 F' R2 L2 F' U2 D2 F
    Solution: F D' L' U' R' U L U' R2 D' R' U' R F' L2 F2 D F2 B' D B F' D' F' L2 (25)

    Pre-move: L2

    F D' # U2 * R // EO
    D' F' L2 // 2x2x2
    F2 D F2 // Pseudo F2L-2
    B' D B // F2L-1
    F' D' F' // AB4C

    * U R D' R' U' R D R' // 5 Cancellations
    # L' U' R' U L U' R U // 3 Cancellations

    Optimal insertions :D
     
    Last edited: Jul 29, 2014
  7. Wow!! Congratulations!

    How would you (plural) solve the case when you have F2L-1, all edges oriented, and all edges in place but UR and UL, that are switched?
    Because it appears a lot in my solves.
    I solve by doing a U or U' turn and sune, or by avoiding that case by modifying my previous moves.
    Is there a better way?
     
  8. Jimmy Liu

    Jimmy Liu Member

    149
    0
    Jul 7, 2014
    WCA:
    2011LIUR02
    That was quite impressive, thanks for sharing you solution and congratulations!
     
  9. porkynator

    porkynator Member

    1,193
    315
    Oct 27, 2010
    Belluno, Italy
    WCA:
    2011TRON02
    YouTube:
    PorkyDays
    Anyone wants to try this scramble? I've found a quite lucky 27 HTM solution (23 skeleton + 4 for 3 corners) and interesting 12 HTM F2L-1, but no good continuation for that.

    Scramble: U F2 R2 B2 F2 D' L2 U L2 B2 U2 R D2 U R' L D B' D' B' F U
    My Final Solution: U F' B U' F U' F' R' F2 L B2 L2 F2 L2 R2 D F2 D' B' D F2 B D2 R D R L2

    U F'
    B U' F U'
    F' R' F2 //Stuff (9/9)
    L B2 L2 F2 //??? (4/13)
    L2 //!!! (1/14)
    R2 * B' D B D2 R D R L2 //All but 3 corners (9/23)

    * = D F2 D' B' D F2 D' B //3c (4/27)

    F2L-1 in 12 (my NISS notation, moves in brackets are done on inverse scramble):
    B U2
    (F U R2 U')
    (B2 D' R' D')
    D B

    Other interesting stuff I've found:

    Nice 2x2x3: U' F' U R' {D'} U2 R' {D} L
    Moves in {} can be replaced with D2 to get an XXcross.
    I've also played around a bit with the non-obvious start U' F' U

    Backup skeleton, all but 3 corners in 24: U' F' U2 L U2 L' U' R' / U2 L2 U L2 B L B' / U B U' B' U B U' B' U

    All but 3 corners and 3 edges in 18:
    Premove F'
    B U2
    R B' D2 R2 D'
    D B' D2 R D R2 B'
    R B' R' B
    R F'
    First 2 moves lead to some quite good continuations (D2 R2 D' L B L' or D' F' R' B' F R' L' D' R' L for example).
     
  10. guysensei1

    guysensei1 Member

    5,123
    458
    Nov 24, 2013
    Singing pores
    WCA:
    2014WENW01
    This FMC thing really is addictive...

    I'll give it a go but I'm not fantastic.

    F R2 L F' D' F'//2x2x2 (6)
    L U' L' D B' D' B//2x2x3 (7)
    (switch to inverse)
    R' B U B' U2 R//block

    I can't go on from here :( Completely stuck.

    EDIT:
    I shall post another attempt here for critique
    Scramble: U B2 R2 U L2 B2 L2 U2 L2 R2 U' F' U F2 L U F' L B2 U
    On inverse with premove B2 L2,
    U' F U2 F L2 F' L2//2x2x2 (7)
    F U' L F' L'//2x2x3 (5)
    R' U R' U2 R2//f2l3

    Back to normal scramble:
    Aaaand I have no idea how to revert back to the normal scramble. Dang. Help?
     
    Last edited: Jul 29, 2014
  11. Scramble: U B2 R2 U L2 B2 L2 U2 L2 R2 U' F' U F2 L U F' L B2 U

    First stuff on normal (premoves on normal are stuff done in inverse mode and premoves on inverse are stuff done in normal mode) L2 B2, add it at the right of the scramble
    U B2 R2 U L2 B2 L2 U2 L2 R2 U' F' U F2 L U F' L B2 U L2 B2
    Then perform all that "new scramble" backwards.
    B2 L2 U' B2 L' F U' L' F2 U' F U R2 L2 U2 L2 B2 L2 U' R2 B2 U'
    Now second stuff on inverse:
    U' F U2 F L2 F' L2 F U' L F' L' R' U R' U2 R2
    To get back to normal scramble, put all that at the right of the whole thing that you just did backwards to switch to inverse, like this:
    B2 L2 U' B2 L' F U' L' F2 U' F U R2 L2 U2 L2 B2 L2 U' R2 B2 U' U' F U2 F L2 F' L2 F U' L F' L' R' U R' U2 R2
    Aaand perform that backwards and you now are on the normal... Do this every time you want to switch from one mode to the other.
    Then, at the end, you write all the thing that is on the right of the scramble, then write the thing that is on the left of the scramble like it is, without reversing it (like correcting premoves) and reverse the whole solve if you finished in inverse mode.[/B]

    ...

    It is like this:
    Scramble: F U R
    Stuff on normal: R'

    Switch to inverse:
    F U R R' performed backwards, R R' U' F'

    Then stuff on inverse: F U

    Switch back to normal:
    R R' U' F' F U performed backwards, U' F' F U R R'

    Then your full solve will be R' U' F'.

    Hope you understand it :D (And hope that all that thing that I wrote is correct xD)
     
    Last edited: Jul 29, 2014
  12. wontolla

    wontolla Member

    300
    2
    Oct 21, 2010
    WCA:
    2011GRAJ01
    YouTube:
    wontollagdl
    Newbie question:

    Recently in a competition I heard someone say: Using the inverse of the scramble is not allowed because of the rule: "E2e) The competitor's solution must not be directly derived from any part of the scrambling algorithm. Penalty: disqualification of the attempt (DNF)."

    For starters, I don't really understand the rule, nor its relevance with using the inverse.

    Is it then true we cannot use the inverse in a competition?
     
  13. dbax0999

    dbax0999 Member

    380
    1
    Jul 4, 2009
    WCA:
    2009ADAM01
    YouTube:
    davidadams123456
    This just means you can't copy the inverse down verbatim as your solution.
     
  14. goodatthis

    goodatthis Member

    836
    10
    Jan 11, 2014
    NY
    WCA:
    2014CAVA01
    YouTube:
    Goodatthis123
    Ironically, the start was very CFOPey but it was pretty good.

    U' F' R' U2 L2 U2 L' R U' R2 // 2x2x3+cancel into F2L-1
    U' R U R' U' R // F2L-1
    Switch to inverse (R' U R U' R' U R2 U R' L U2 L2 U2 R F U premoves)
    U' B L' B' L U2 L U2 L' // L4C

    Optimal insertions give 5 move cancellations, total 36 moves. :(

    25 move skeleton.
     
    Last edited: Jul 29, 2014
  15. How do I know where it is better to insert a corner 3-cycle commutator?
    Like
    Why did you insert * there and how did you know it was going to cancel moves? Because corners move around a lot and I can't find a way to think a place to insert commutators, so I always put them at the start or at the end.
     
  16. vcuber13

    vcuber13 Member

    2,478
    9
    Oct 14, 2009
    Near Toronto
    WCA:
    2009METH01
    YouTube:
    simpsons36109
    You usually put temporary stickers with numbers on them to show the cycle. Then go through the skeleton and after each move see if the commutator will cancel any moves.
     
  17. Nats practice: F R2 B L2 B R2 B2 L2 D2 F' D' F2 R F2 L2 D U' R F' R2 D'

    Got two 30-move solutions, a 25-move L3C with 3 moves cancelled, and a 26-move L3C with 4.

    D2 L2 D2 L F D2 F D' F' // 2x2x2 + 2 pairs
    R L' D' * R' // 2x2x1
    B' D2 B' L2 D L' // F2L
    L D L . B' L' B D' L' D2 // L3C, cancels 3 moves with previous
    Insert L' B R B' L B R' B' at . cancelling 3 moves.
    R' B' D' B D R D2 // L3C
    Insert D L' D' R2 D L D' R2 at * cancelling 4 moves
    D2 L2 D2 L F D2 F D' F' R L' D' R' B' D2 B' L2 D2 B R B' L B R' B2 L' B D' L' D2 30 HTM

    D2 L2 D2 L F D2 F D' F' R L2 D' R2 D L D' R B' D2 B' L2 D L' R' B' D' B D R D2 30 HTM
    Insertion Finder confirms both are optimal :)
     
    Last edited: Jul 30, 2014
  18. Thanks vcuber13!

    I posted that but I didn't realise that "A U or U' turn and sune" won't solve that case.
    I use "A U or U' turn and sune" for solving 2 adjacent edges swapped, but I also try to avoid cases like that.
    But I can't find an optimal solve to UR and UL swapped, when trying to only solve Edges. I sometimes do 1 or 2 corner-edge pairs and solve like heise, but here I have another situation: 2 adjacent edges swapped.
    ┬┐What would you do there?
     
  19. guysensei1

    guysensei1 Member

    5,123
    458
    Nov 24, 2013
    Singing pores
    WCA:
    2014WENW01
    I guess I'll repost this in the FMC thread as well.
    Lol D2 L2 U2 F L F' D' R2 B D F2 U F2 D F2 U' R2 D L2 B2

    U' R' D' R D2//2x2x2 (5)
    D F2 D'//2x2x3 (3)
    switch to inverse,
    U F U' F R' F R//F2L3 (7)
    L' U L//F2L4 (3)
    L U F U' F' L'//OLL (6)
    B U' F U2 B' U B U2 B' F' U2//PLL (11)


    Final: U' R' D' R D' F2 D' U2 F B U2 B' U' B U2 F' U B' L F U F' U' L2 U' L R' F' R F' U F' U' (33) My FMC PB

    IF gives
    U' R' D' R D' F2 D' [@1] L F U F' U' L2 U' L R' F' R F' U F' U'
    Insert at @1: R U' L D2 L' U L D2 L' R'
    After the 1st insertion: U' R' D' R D' F2 D' R U' L D2 L' [@2] U L D2 R' F U F' U' L2 U' L R' F' R F' U F' U'
    Insert at @2: L U2 D2 R' U R U2 D2 L' U'
    Fewest moves: 30. 12 moves cancelled
    The final solution: U' R' D' R D' F2 D' R U' L U2 R' U R U2 R' F U F' U' L2 U' L R' F' R F' U F' U'

    Would more proficient FMCers give this one a try?
     

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