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The FMC thread

please check this scramble, quite lucky, a friend got it in qqtimer

L2 U B2 D' B2 U R2 D' B2 D2 U' B' R2 U' F2 U' F2 L' U2 R2

Backup solve: U' D' L' D' L2 D2 U L' D L U' R' D L2 D' R D L2 D' L' D U2 R2 U F D' U (27)
U' // pre move (1/1)
(U' D F' U' R2 U2) // 2x2x3 (6/7)
D' L' D' L2 D2 L' D2 // 5 corners (7/14)
D2 L U L' D L U' R' D L2 D' R D L2 D' L' D // all (17/31)

Solve w/insertions: U' D' L' D' L2 D2 U L' D L U' L' R' D L' D' R D L U2 R2 U F U D' (25)
U' D' L' D' L2 D2 + L' D2 // 5 corners (8/8)
@ U2 R2 U F U D' // correction (6/14)

+ U L'DL U' L'D'L
@ D'R'D L' D'RD L
i use porkynator's NISS notation, and practice FMC since less than a month now (sorry for my bad english, i'm a bit tired now)
 
Last edited:
guusrs said:
Looks like a valid solve to me. Your explanation is very clear an logic.
I think you would have found it as well with a different scramble (but same position of the cube). Isn't it?
And a close escape for WCA nobody found this during the competition.
At least you share the UWR now with me (-;
Click to expand...
Well, I started messing around with the beginning R2 B2 R2 because of Lucas's start. I'm quite confident I would have found the solution with an equivalent scramble, although it may have taken me more time because of first investigating other starts.

I definitely wouldn't count this as UWR because it is someone else's scramble that I only started messing around with because it was in this thread (same logic as not counting PBs on scrambles in the easy scrambles thread).
 
Got a 32 move FMC at SCMU 2014! Posting my solution

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

B R L' F L2 U L2 U L' // Xcross
R' U' R U' L' U L // 2nd pair
U' R U' R2 F' U F R // 3rd pair + 4th pair + EO
B U2 B' U' B U' B' U2 // OLL + AUF

Thanks to cancellations :D
Missed the mean though :/
 
In the "Example solve game" thread, I found a really good solution with Roux -it would be even a very good FMC solution as well.

R L' F2 U R L' U' D B2 D' B2 F2 R2 L' F' U2 R' F' D U' L R D B2 U

y x2
U f' R' f2 r' F (6) (FB)
r F R2 F' R (5) (SB)
U R' U L' U2 R U' R' U2 r2 x' (10) (CMLL, move cancellation: R L M' = r2 x')
U' M U' M U2 M2 (6) (LSE)

I wonder how good is that scramble? Can someone do a really good FMC on it?
 
FMC Scramble from Frankfurt Cube Days 2014: B2 L B L2 U2 D F D' R' D2 B U' B2 U' L2 B2 D2 B2

I found L3C in 17 after 5 minutes, a skeleton that was quite obvious in my opinion (linear on normal scramble). I was surprised after the attempt that only one other competitor (Laura Ohrndorf) managed to find the same skeleton. Unfortunately, there was only one spot giving cancelation (and only one move cancelation).

I had my 24 move solution written down after around 10 minutes, tried with 2 insertions but this got me to 24 only as well. :/
 
My winning solutions from Molina Open 2014.

1st scramble: R2 U L2 B2 F2 D' F2 R2 F2 R U' B2 D L' U' F R B F2
1st solution: F R B U' R2 U2 B2 D' F L F' L' D L2 D L' D' F' L B' L' F L B D L2 D' R' U2 D L2 F2 (32 moves)
NISS solve.

(Inverse)
1st square: F2 L2 D'
2nd square: U2 R

(Normal)
Pre-scramble: R' U2 D L2 F2

3rd square: F R B
Expand block: U' R2
2x2x3 block: U2 B2
Orient edges: D' F L F'
F2L minus 1 slot: L' D
All but 3 corners: L2 D L' D' * L D L2 D'
Correction: R' U2 D L2 F2

Insert at *: F' L B' L' F L B L'

I believe this is a relatively easy scramble, but I couldn't find any better solution. :(

Here are some of starts I found:

[1] R' F R (quite promising, I should have found something with this)

[2] (Inverse) R' L D2 U B'

[3] (Inverse) U D' L2 R' F'

2nd scramble: U L2 D U L2 R2 U' R U' F L2 B' R' D F2 R D B
2nd solution: D' B L F' U L' F' L R D R D2 R D' R' D2 R' D' B R' B' R D R2 D F' R2 B2 R' F R B2 R' F' B' (35 moves)
I found the following promising start within 10 min.

Pre-scramble: B'

2x2x2 block: D' B L F' U
Pseudo 2x2x3 block: L' F' L
Pseudo F2L minus 1 slot: R D R2

Unfortunately, I couldn't find any good finish in the remaining time.
At 55 min or so, I decided to write down a safe solution by continuing after the start.

All but 3 corners: R' D2 R D' R' D2 R' D' B R' B' R D R2 D F' R
Corner 3-cycle: R B2 R' F R B2 R' F'
Correction: B'

(IF says an optimal insertion gives 34 moves)

3rd scramble: D2 F2 D2 L' R2 F2 D L2 R2 D2 B' L2 D2 B D2 R2 D
3rd solution: D U2 L' U R' U' L U2 R D' U' B U R' U' R' B U F' L2 D' L F' D' (24 moves)
Here is 30 min backup solution (28 moves).

(Inverse)
c/e pair: D
c/e pair: F
c/e pair: L'
1st square: D
2nd square: L2 *
Pseudo 2x2x3 block: F U'
F2L minus 1 slot: B2 D' R D U
Finish F2L: U F' U' F
All but 3 corners: F D2 B' D' B D' F' R'

Insert at *: L' B L F' L' B' L F

In the remaining time, I found the following solution.

(Inverse)
c/e pair: D
c/e pair: F
c/e pair: L'
1st square: D
2nd square: L2
Pseudo 2x2x3 block: F U' (same as above)
F2L minus 1 slot: B' R U R U' B' U
All but 3 corners: D R' U' R * U D'

Insert at *: R' U' L' U R U' L U

Mean of 3: 32, 35, 24 = 30.33, which is not good for me :(, but I'm still happy to get official Sub 25 again finally.
 
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Sebastien said:
FMC Scramble from Frankfurt Cube Days 2014: B2 L B L2 U2 D F D' R' D2 B U' B2 U' L2 B2 D2 B2
Click to expand...

Got quite lucky on this one. 30 moves in 47 minutes. I was thinking it may be a low 20 but couldn't force a PLL skip. I was also a little lazy with three rotations this solve, forgive me. :p

PM: F2 B2
2x2: y2 F' L D B D
Expand: U2 L2 U' L U' F2
4th pair: z U2 L' U' L
OLL: y' R' U' R U' R' U2 R' (canceling into PLL)
PLL: U F B' R2 B F' U R2 (R2 turns into L2 because of cancellations in final solution)

Final solution: y2 F' L D B D U2 L2 U' L U' F2 z U2 L' U' L y' R' U' R U' R' U2 R' U F B' R2 B F' U L2
 
During Molina Open 2014, with the help of Jesús, I could ask some questions to the Spanish record holder (and Vice European champion) Javier Cabezuelo Sánchez (I once raised his name here). Here are some topics I heard from him.

  • At first, he solved Rubik's cube without any help, i.e., he invented his own method. First layer corners - Top layer corners - Middle layer edges - Remaining edges.
  • At initial some competitions he participated in speedsolving events, but gradually lost interest in speedsolving. Currently he participates in only fewest moves.
  • He consults on FMC based on his own invented method. He showed his NR 24-move solution to me. 14-move (? not sure) skeleton for all corners and 6 edges, and remaining 6 edges are solved with insertion of 12-move algorithm, and 2 moves cancel.
  • He is proud of his method/approach, and he wants to keep the detail secret (I could not take a memo of his NR solution). This is one of reasons why he doesn't participate in internet FMC competitions. Other reasons include: (1) it is quite complicated and not easy to explain, and (2) he cannot speak/write English.
  • Basically, he uses only his method, and he is reluctant to use other methods/techniques. He doesn't use premoves, inverse scrambles, and so on. He likes direct solving.
  • His approach is similar to Attila's one in the sense of corners-first, but seems slightly different in the way to handle centers. Attila usually ignores centers in the step of solving corners, but Javier seems to care centers during corners.
  • He usually practices FMC three times a week. Rest of his time is devoted to refine his method/solution, memorize algorithms, consider how to do in some situation, and so on. He said he memorized lots of algorithms, and at the same time forgot lots of algorithms. (ha-ha :D)
Information about him is not so much available currently, mainly because he cannot speak any language other than Spanish. So just like to share these things that I got on this occasion.
 
Even though I find it very impressive to be able to find short solution (and extremely short in STM) with CF, I personally think that being restricted is the worst thing you can do in FMC. Did he say anything how he finds his corner solutions? When I was playing around in the 2x2x3 example game thread I could get close to optimal with solving 5 corners and then doing a insertion.
 
irontwig said:
Even though I find it very impressive to be able to find short solution (and extremely short in STM) with CF, I personally think that being restricted is the worst thing you can do in FMC. Did he say anything how he finds his corner solutions? When I was playing around in the 2x2x3 example game thread I could get close to optimal with solving 5 corners and then doing a insertion.
Click to expand...
He didn't say anything about how to find the skeleton, but I think he doesn't use insertion for corners (use only for edges).

I agree with your opinion: being restricted is bad, but I also think that too many options don't guarantee a short solution, especially when the time is limited. I usually search edges-first skeletons only, whereas Javier searches only corners-first skeletons. I'm not sure whether there's a good well-balanced point.
 
Sebastien said:
FMC Scramble from Frankfurt Cube Days 2014: B2 L B L2 U2 D F D' R' D2 B U' B2 U' L2 B2 D2 B2

I found L3C in 17 after 5 minutes, a skeleton that was quite obvious in my opinion (linear on normal scramble). I was surprised after the attempt that only one other competitor (Laura Ohrndorf) managed to find the same skeleton. Unfortunately, there was only one spot giving cancelation (and only one move cancelation).

I had my 24 move solution written down after around 10 minutes, tried with 2 insertions but this got me to 24 only as well. :/
Click to expand...

Congratz, especially to Laura who broke the FMC female worldrecord, did she?
 
Sebastien said:
FMC Scramble from Frankfurt Cube Days 2014: B2 L B L2 U2 D F D' R' D2 B U' B2 U' L2 B2 D2 B2

I found L3C in 17 after 5 minutes, a skeleton that was quite obvious in my opinion (linear on normal scramble). I was surprised after the attempt that only one other competitor (Laura Ohrndorf) managed to find the same skeleton. Unfortunately, there was only one spot giving cancelation (and only one move cancelation).

I had my 24 move solution written down after around 10 minutes, tried with 2 insertions but this got me to 24 only as well. :/
Click to expand...
Here is my best solution in 1-hour, actually found in 15 min.
Solution: U D R2 L U B2 U2 F' L B L D B' L' B D F2 R' D' R D F2 D L D2 (25 moves)
NISS solve.

(Normal)
c/e pairs: U
1st square: D R2
2nd square: L U
2x2x3 block: B2 U2 F' L B
More square: L D B' L' B

(Inverse)
Pre-scramble: B' L B D' L' B' L' F U2 B2 U' L' R2 D' U'

F2L minus 1 slot: D2 L'
All: D' F2 D' R' D R F2 D'
Correction: B' L B D' L' B' L' F U2 B2 U' L' R2 D' U'

After 2x2x3 block, I found other finishes, for example

Orient edges: D' * F L2 F'
All but 3 corners: D' L' D L D L2 D2

Insert at *: D F D' B D F' D' B'

which results in 27 moves, not better than above.
Same as whauk, I thought U was promising as start.
Well done Sébastien and Laura. That start was not obvious.
Although with Sébastien's hint I found your skeleton linearly, I'm sure I couldn't find it in the competition.
 
okayama said:
Here is my best solution in 1-hour, actually found in 15 min.
Solution: U D R2 L U B2 U2 F' L B L D B' L' B D F2 R' D' R D F2 D L D2 (25 moves)
NISS solve.

(Normal)
c/e pairs: U
1st square: D R2
2nd square: L U
2x2x3 block: B2 U2 F' L B
More square: L D B' L' B

(Inverse)
Pre-scramble: B' L B D' L' B' L' F U2 B2 U' L' R2 D' U'

F2L minus 1 slot: D2 L'
All: D' F2 D' R' D R F2 D'
Correction: B' L B D' L' B' L' F U2 B2 U' L' R2 D' U'

After 2x2x3 block, I found other finishes, for example

Orient edges: D' * F L2 F'
All but 3 corners: D' L' D L D L2 D2

Insert at *: D F D' B D F' D' B'

which results in 27 moves, not better than above.
Same as whauk, I thought U was promising as start.
Well done Sébastien and Laura. That start was not obvious.
Although with Sébastien's hint I found your skeleton linearly, I'm sure I couldn't find it in the competition.
Click to expand...


That's a good one, Tomoaki! I tried it too, found the same 9-move 2x2x3 block at my first glance (and soon later 4 other 9-movers) but I missed the finish. Actually, your last 9 moves are hard to see for me. But from now on, I'll remember the trick and namely what 2x2x1 block it forms.
 
okayama said:
During Molina Open 2014, with the help of Jesús, I could ask some questions to the Spanish record holder (and Vice European champion) Javier Cabezuelo Sánchez (I once raised his name here). Here are some topics I heard from him.

  • At first, he solved Rubik's cube without any help, i.e., he invented his own method. First layer corners - Top layer corners - Middle layer edges - Remaining edges.
  • At initial some competitions he participated in speedsolving events, but gradually lost interest in speedsolving. Currently he participates in only fewest moves.
  • He consults on FMC based on his own invented method. He showed his NR 24-move solution to me. 14-move (? not sure) skeleton for all corners and 6 edges, and remaining 6 edges are solved with insertion of 12-move algorithm, and 2 moves cancel.
  • He is proud of his method/approach, and he wants to keep the detail secret (I could not take a memo of his NR solution). This is one of reasons why he doesn't participate in internet FMC competitions. Other reasons include: (1) it is quite complicated and not easy to explain, and (2) he cannot speak/write English.
  • Basically, he uses only his method, and he is reluctant to use other methods/techniques. He doesn't use premoves, inverse scrambles, and so on. He likes direct solving.
  • His approach is similar to Attila's one in the sense of corners-first, but seems slightly different in the way to handle centers. Attila usually ignores centers in the step of solving corners, but Javier seems to care centers during corners.
  • He usually practices FMC three times a week. Rest of his time is devoted to refine his method/solution, memorize algorithms, consider how to do in some situation, and so on. He said he memorized lots of algorithms, and at the same time forgot lots of algorithms. (ha-ha :D)
Information about him is not so much available currently, mainly because he cannot speak any language other than Spanish. So just like to share these things that I got on this occasion.
Click to expand...
It seems, almost same his thoughts as me. :)
Would be useful see his some solutions...
 
Scramble: L' F L F2 R' F R2 D L' B2 U2 R U2 R U' L F D B U' R D2 L F' L'
Solution: U' F2 U' B2 U F2 U' B2 L2 F2 B2 L U' R U B U' F' U' L2 D F U F2 D2 U R B R' B U' (31)

F2L-1: U2 [1] L2 F2 B2 L U' R [2] F' U B U2 L2 D F U F2 D2
L4C: U R B R' B U'

[1]: U F2 U' B2 U F2 U' B2
[2]: U B U' F' U B' U' F

1hr solv

/

Used Snyder Method.
Is there any good L3C after the F2L-1?
 
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