I'm looking to maybe start some FMC. Currently I just kind of use Petrus/Roux/Heise all mixed together. I'm pretty lame (i.e., 40+ stm solutions.)
What should I try? Or should I just start doing a bunch?
*cough* I'd probably have a lower movecount if I spent more then 15 minutes per solution and actually tried some stuff rather than just using the first or second solution I can find.*cough*
Scrambles and my solutions from Moves are for n00bs 2012.
There were three attempts for 1st round, and also three attempts for the final.
Thanks to Erik for organizing such a great competition,
and congrats on your win with awesome Sub 25-move solution!
1st round
Scramble 1: F D2 L' F2 D' R B R U R F' L2 U' L2 U' B2 U D B2 U'
Solution 1: U L' U' L D2 R D F U' B2 D' B U2 B' D B U' F' U B U' B U' F' L' F' R' L2 (28 HTM)
Pre-scramble: B U' F' L' F' R' L2
F2L minus 1 slot: U L' U' L D2 R D
All but 3 corners: F U' B' * U F' U B U'
Correction: B U' F' L' F' R' L2
Insert at *: B' D' B U2 B' D B U2
Scramble 2: D2 F2 R2 F2 U2 R2 D' L2 R2 D2 F2 R F2 L' B D2 B' U' B R2
Solution 2: R' B2 U R' B D L' D' L2 B' L B U' B R' D S D' B2 D S' D' B' L' B' R2 B L B' R2 (32 HTM)
(For inverse scramble)
Pre-scramble: R' B' R U' B2 R
All but 3c3e: R B' U B' L' B L2 D L D' R
Correction: R' B' R U' B2 R
So, skeleton for the given scramble is:
All but 3c3e: R' B2 U R' B D L' D' L2 B' L B U' * B R'
There were 20 minutes left when I got this skeleton, but I couldn't find
good insertions, mainly because I stuck to searching a pair 3-cycle with
some conjugates and wasted my time.
Time limits came, so I quickly wrote the solution
by solving the 3c3e 3-cycles at the end:
Edge 3-cycle: D S D' B2 D S' D' B2
Corner 3-cycle: B L' B' R2 B L B' R2
Insertion finder says you can get 26 moves as follows:
Insert at *: D (D2 L D2 + Bw2 D2 L D2 Bw2) D'
Insert at +: D2 L' U L D2 L' U' L
Scramble 3: U2 D B U R2 B' D' L' D2 F R F2 R2 L2 B2 L2 U F2 R2 U'
Solution 3: R2 U' D L2 D' R2 D L2 D' L B' U F' L2 U2 L' B L' B' L U F U F2 U' F' U R' F R F' (31 HTM)
5 min linear backup skeleton.
2x2x2 block: R2 U' * R2 L B'
Pseudo 2x2x3 block: U F' L2
Expand block: U2 L' B L' B' L
More squares: U F U F2 U' F'
All but 3 corners: U R' F R F'
Insert at *: D L2 D' R2 D L2 D' R2
After that I found another 25-move skeleton:
2x2x2 block: R2 U' R2 L B'
Pseudo 2x2x3 block: U' F U2 F' L2 U'
All but 3 corners: F2 L F' L' F' L F L' F L' R * U R' U' (found on inverse)
Insert at *: L2 U' R' U L2 U' R U
but it gave just the same 31-move solution. No better solution was found in time.
Final round
Scramble 1: U2 F2 D' R2 D R2 F2 D F2 L F D B' R' B L2 R2 U2 L U
Solution 1: L U F R B' L B L D B U B' D' B U' B2 D B D' B2 D' B' D2 B2 D2 B2 D' B D L' D2 L D' F' (34 HTM)
Crappy safe solution, but needed whole 1-hour.
Pre-scramble: F'
2x2x2 block: L U F R
2x2x3 block: B' L B L *
All but 3 corners: B' D B D' B2 D' B' D2 B2 D2 B2 D' B D L' D2 L D' (found on inverse)
Insert at *: D B U B' D' B U' B'
Scramble 2: B L2 R2 F2 L2 D2 F' D2 F L2 D' F' R' U L2 B2 F' L B' R F'
Solution 2: D' L' D' R' U' L' B' F2 D2 R' D F L' F' R F L D2 F D F2 D F' D2 F' L' F (27 HTM)
(For inverse scramble)
Pre-scramble: F2 B L U R D L D
2x2x3 block: F' L
All but 3 corners: F D2 F D' F2 D' F' D2 F' R' * D' R D2
Correction: F2 B L U R D L D
Insert at *: R F L' F' R' F L F'
Scramble 3: U B2 D' U2 B2 L2 D B2 R2 F' U R2 D' L' B U2 F L R'
Solution 3: D U F D B L' F D R L' U' F U' F' R U L' U2 L U L' U L2 U F' L F L' U' (29 HTM)
Here is 5 min linear backup solution:
1st square: D U F
2nd square: D B
Pseudo 2x2x3 block: L' D2 F D' R2 L2
Pseudo F2L minus 1 slot: U L U' R' U' R
Pseudo F2L: F U' F'
LL: R' U' R2 B' R' B2 U' B' U
Correct pseudoness: L
By investigating more options, I got a shorter linear solution.
1st square: D U F
2nd square: D B
Pseudo 2x2x3 block: L' F D R L'
Pseudo F2L: U' F U' F' R
LL: U L' U2 L U L' U L / L U F' L F L' U' L'
Correct pseudoness: L
Nice to see FMC lovers, it was fun and challenging competition!
I'm looking to maybe start some FMC. Currently I just kind of use Petrus/Roux/Heise all mixed together. I'm pretty lame (i.e., 40+ stm solutions.)
What should I try? Or should I just start doing a bunch?
*cough* I'd probably have a lower movecount if I spent more then 15 minutes per solution and actually tried some stuff rather than just using the first or second solution I can find.*cough*
My 1 hour time limit PB, also my first sub 30 solution found less than 45 minutes
scramble: B U2 F D2 R2 B' F2 L2 D2 U2 R B2 F L D R D2 R' U' B'
solution:
premove: L' R2 (2)
2x2x2: D R2 B L2 (6)
2x2x3: L' F L F2 D' (10)
f2l-1: F2 R' F R2 (14)
L3C: F R' F R U F2 U' (21)
fix corner: U L D' L' U' L D L'
4 moves cancel
final solution: D R2 B L F L F2 D' F2 R' F R2 F R' F R U F2 L D' L' U' L D L2 R2 (26 moves)
My solution for the second scramble of the first round of Moves are for N00bs (the only one of mine that's worth posting):
Scramble: D2 F2 R2 F2 U2 R2 D' L2 R2 D2 F2 R F2 L' B D2 B' U' B R2
Solution: F2 R2 U' R' D' R' D L D' L' D' L B' D F D' B D F' L' D' L' D B D2 B2 L B R (29)
F2 R D' R U' R2 [Pseudo 2x2x3]
Switch to inverse:
B' L' B2 D2 B' D' L [F2L-1]
D L D' L' D L D L' D' [F2L and leaving two corners mostly by luck]
Which gives this skeleton:
F2 R D' R U'.R2 D L D' L' D' L D:L' D' L' D B D2 B2 L B R
Insert at dot: U R' D R U' R' D' R' (8 moves cancel)
Insert at colon: D' B' D F D' B D F' (2 moves cancel)
My first ever attempt at FMC after studying many solutions
Scramble: D L2 B2 D' L2 F2 D2 F2 D' L2 U R' U' R2 B' L2 D' F U F R
Premoves (Normal): D2 R2 D2 U2 (4)
2x2x2: L' U' L U2 (4)
2x2x3: D' (1)
Leave 3 edges: F R2 F' R F2 R F R2 * F' R D R D' (13)
At * insert: R U' R' E' R U R' E (10) to cancel 1 move
Final Solution: L' U' L U2 D' F R2 F' R F2 R F R' U' R' E' R U R' E F' R D R D R2 D2 U2 (30)
There's probably a much better solution after my 2x2x3 and a better insertion, but i ran out of time
For those of you questioning that Roux isn't good for FMC, here's my 22 move solution from the current weekly competition
B U2 F' L2 F' D2 F' U2 B R2 F' R' F' U B2 L2 F2 U' F' U R'
On normal
F' L2 D L2 // 1x2x3 (4)
U R U2 R' U' F R2 B2 L B // 1x2x3 (14)
14 Move skeleton: F' L2 D L2 U R # U2 R' U' F R2 B2 L @ B
# = F' B L2 F B' U2
@ = R2 F' B U2 F B'
Final solution: F' L2 D L2 U R F' B L2 F B' R' U' F R2 B2 L R2 F' B U2 F
The Scramble：B U2 F' L2 F' D2 F' U2 B R2 F' R' F' U B2 L2 F2 U' F' U R' (Weekly competition round 2012-35)
Your Skeleton：B L' B L B2 U * B2 L' D L D2 B D R' U F U' B' D R2 U F' L U2
Algorithm
corner 3-cycle edge 3-cycle corner 2*2-cycle edge 2*2-cycle
corner twist edge flip edge other other
1 corner 3-cycle(s) and 0 edge 3-cycle(s) insertion(s) needed
No proper insertion found
Runtime: 0.531805 milliseconds
But, for example, U2 (L U' R2 U L' U' R2 U) U2 at * should be a proper insertion, resulting in 8-move insertion.
The Scramble：B U2 F' L2 F' D2 F' U2 B R2 F' R' F' U B2 L2 F2 U' F' U R' (Weekly competition round 2012-35)
Your Skeleton：B L' B L B2 U * B2 L' D L D2 B D R' U F U' B' D R2 U F' L U2
Algorithm
corner 3-cycle edge 3-cycle corner 2*2-cycle edge 2*2-cycle
corner twist edge flip edge other other
1 corner 3-cycle(s) and 0 edge 3-cycle(s) insertion(s) needed
No proper insertion found
Runtime: 0.531805 milliseconds
But, for example, U2 (L U' R2 U L' U' R2 U) U2 at * should be a proper insertion, resulting in 8-move insertion.
Disclaimer: I'm not good at FMC, I did a total of 3 one-hour attempts in my life.
That's what I would do:
U' B' R' U' R2 B2 R' //Make Pseudo F2L-1+EO (to correct pseudoness you may use B2 as a premove, that is what I did)
B F U' B' U F' U' B U2 B' U //Place 5 edges and 2 corners, step 3 of the Heise Method.
B2 //Adjust pseudoness
Now you have 3 corners left, you can insert a commutator somewhere in the middle of the solve in order to cancel some moves.
Solution would be 29 moves + insertion, and it's funny because I just did a 30 moves + insertion FMC solve with an 11 moves 2x2x3!
Scramble: U L B2 F2 D' U2 R D2 U L2 F2 D' B U2 L' R U' F L R' D' B D' U B'
D U2 F R' D L2 D2 F U L F2 //2x2x3 (11/11)
D R2 B' D' * B D2 R' //F2L-1+EO (7/18)
D2 F D2 F' D' //2 pairs (5/23)
L' D F D' F' D' L //Pair 3-cycle (7/30)
Insert at *: D B' D F2 D' B D F2 D2 //L3C (9-3/36)
Solution: D U2 F R' D L2 D2 F U L F2 D R2 B2 D F2 D' B D F2 D2 B D2 R' D2 F D2 F' D' L' D F D' F' D' L (36 HTM)
Hi Tomoaki:
At first sight I noticed this is only a 16-move scramble.
Should that be allowed? It will trigger me to search differently!
I will try the scramble later....
the delegate (or someone else who generated the scramble) probably making it optimal in Cube Explorer.
(Edit > Generate WCA scramble, then press the triangle button on the right of the scramble), and a 16-mover popped out.
Should that be allowed? It will trigger me to search differently!
I will try the scramble later....
The regulations only specify the scramble must be generated from Cube Explorer, in my opinion if that followed there's nothing wrong with it.
And I'll be interested in your differently searched solution!
---
Btw, slice move won't be allowed in the future regulations. What do you think?
Hi Tomoaki:
At first sight I noticed this is only a 16-move scramble.
Should that be allowed? It will trigger me to search differently!
I will try the scramble later....
Takafumi Haseda (who generated this scramble) said that he used Cube Explorer 5.00 on Windows Vista,
and after shortening the generated scramble, it became 16-move (not sure it's optimal or not).
So, as Ardianto expected, the scramble was generated in accordance with the reguration.
Although it is allowed, maybe that doesn't answer your question: "Should that be allowed?"
I think there are two points to be discussed:
Should a scramble that can be solved with 16-move or shorter be allowed?
Even though such a scramble is allowed, the generator should be reasonably long in order to avoid cheating or expectation or something bad.
IMO at least the latter point should be regulated. For example "the length of the generator should be 20 or longer."
Do you mean "L' R" is allowed but "M" is not allowed?
Personally that doesn't matter, but I don't understand why slice move is prohibited...
I don't think the regulation contributes to the further development of cubing world.
Some possible reasons:
-1- Maybe 2013 brings us the introduction of a standardized score-sheet with 10 letters per line (as used during N8W8 and Eindhoven Open)
-2- Maybe Slice moves give too many errors for competitor and or "results-checker"
In my opinion these arguments are not enough reason to ban slice moves.
-1- This enables fast counting of moves, 10 HTM per line BUT apart form the slice move issue competitors may cross out a move, creating a line with 9 moves.
So even with slice moves prohibited, the judge still needs to count properly.
-2- If you use slice moves you should know their notation and a judge should know it too. (I admit being a slice-noob, I once spend 15 minutes to get a TMOY solution to work but just couldn't )
