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boyscout

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Hello all, this is my first post in FMC thred. This is my solution to Dutch Open FMC scramble, find the skeleton in half an hour, trying to get a good insertion in the next half an hour but couldn't get one:

2x2x2 : F' R2 F U' L' U' (6/6)
2x2x3 : D' R F' R2 F2 R2 (6/12)
Pseudoblock minus 1 pair = R F R' F D' F' (5/17)
4 Edge & 2 Corner = F' R' D' R D2 F L D' L D = (9/26)
3 cycle corner : R' B' R F' R' B R F = (8/34)

Still practicing....
:)
 

Tim Major

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Hello all, this is my first post in FMC thred. This is my solution to Dutch Open FMC scramble, find the skeleton in half an hour, trying to get a good insertion in the next half an hour but couldn't get one:

2x2x2 : F' R2 F U' L' U' (6/6)
2x2x3 : D' R F' R2 F2 R2 (6/12)
Pseudoblock minus 1 pair = R F R' F D' F' (5/17)
4 Edge & 2 Corner = F' R' D' R D2 F L D' L D = (9/26)
3 cycle corner : R' B' R F' R' B R F = (8/34)

Still practicing....
:)

Great solution, I also got the same 2x2x3.
 

guusrs

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My solution for the scramble of Dutch Open:
2x2x2 block: F' R2 F U' L' U' R' (7)
2x2x3 block: U F U' L' F2 L (6)
3rd pair: R D R2 F' R' F (6)
4th pair: D' R D' F D' F' R' (7)
LL: L D' R' D L' D' R D (8)
34 moves, found it in 10 minutes, and still could be shorten with an insertion i guess.

Maarten, Gus! I'd like to see yours.

And here is the scramble of the Hungarian Open 2009: F2 U' B2 D' F2 U2 B' D' B2 U' R U' L U2 B2 L B2 F2

In my opinion it is easy, i bet Gus and other expert guys can find sub-30 easily. I did 31 on this. First 18 moves were quite obvious for me, found it in 5 minutes but then i couldn't find anything useful for like 50 minutes. Last 13 moves found in the 57. minute.

2x2x2 block: F U B L2 B' U L (7)
2nd, 3rd pair: F' D' F D2 F D F' R' F' R' F (11)
4th pair+LL: D L D2 L B' L' B D' B D B' L' D2 (13)
Total: 31

I was happy for finding this and i was even happier when i noticed Milán found an even better one and got a 29 moves solution which he deserved a lot! :)

Hi Olivér,

sorry I'm late on your request.
My solution was nothing special, 35 most, almost linear in 3 minutes, After that I focused on sub-30 (I always do) but failed so I had to write down this solution:

F2L: F2 R2 F2 U R' D B' R' B' U2 L' D2 L U' R' D2 R D' F D F' D' B R' B'R (26)
LL: F'D2 F D2 F L' F' L D'(35)

Maybe I should give it another hour to find a sub-30 solution..

I'll give the Hungarian Open Scramble a try too (to be continued)...

Gus
 

nigtv

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Jul 13, 2009
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You guys are going to think im crazy. I'm totally sane, just new at this. 10 min linear solve. scramble: R2 D B2 U B2 D B' D R' U' F' D2 B2 R D L' B' F (note the typo, i solved a typo'd scramble :( )

2x2x2 block: B D L' F' R
finish up, leave a slot: U' L2 U' L' B2 U' L' B2 U' B2 L' B' y'
orient edges: U' R U2 R2 F R F'
finish all edges: U2 F' U' F U2 y
fix one corner: L' U R U' L U R' U' x' y'
final corners: U F' U' F D F' U F U' D'
total: 47 turns.
I know it's not that great, but I'm new to the FMC thing, and I have a hard time keeping track of turns, so I just went for linear, and 10 minutes because more time probably wasn't going to help me much. Maybe not SO BAD for a newbie?
 

nigtv

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47 is the move count for a relatively easy Fridrich speedsolve.
Hmm...well, I use heise, but not very well lol. Usually, if I do have more time, ill go through it several more times, do some insertions, change a thing here and there around, or just use my last solve to do much more extensive look head than I could just doing it in one go.

With that kind of stuff, I can usually get down to 35~ turns in around an hour, but I'm still working. There was a time not too long ago where my move count (albiet with petrus) was averaging like 85, so at least im not getting WORSE.

EDIT: oh yea, I wanted to mention that L' U R U' L U R' U' alg, not one I made up, but I use it (and it's inverse) to save myself from really bad final corner positions, like if i have 2 pairs of 2 swapped corners, 3-4 corners in the wrong place and in a bad orientation, or to rotate 3 corners easily.
 
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ardi4nto

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EDIT: oh yea, I wanted to mention that L' U R U' L U R' U' alg, not one I made up, but I use it (and it's inverse) to save myself from really bad final corner positions, like if i have 2 pairs of 2 swapped corners, 3-4 corners in the wrong place and in a bad orientation, or to rotate 3 corners easily.

3-4 corners in wrong place can be solved easily using insertion. 2 pairs of 2 swapped corners can be solved with kind of (R U R' U')3x insertion. And you can meke up the algorithms for solving 3 corners easily if you know commutators. ;)
 

nigtv

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Jul 13, 2009
Messages
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That's interesting on the insertion thing, I'll look more into it, care to explain a little more?

And on the commutators thing, yea, I can use them, it's just when I'm not bothering with looking ahead, I sometimes get a position with 3 corners in the right place but oriented wrong, which heise doesn't really address with a low turn solution (unless you count looking ahead to just avoid it). I know you can just use 2 corner 3 cycles to fix it, but using that alg (or its inverse) with a single corner 3 cycle usually turns out to be less moves than just using 2 3-cycles.
 

guusrs

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Hi folks,

For advanced FMC users here is a nice example of my NISS-method for FMC (Normal-Inverse-Scramble-Switch):
Scramble: (fmc.mustcube.net #265) F2 B' R' B D B F' R B F L' D2 U2 B2 D U' B' F D2 L' F2 B' R2 B2 R L' F2 U' F' L

my solve: D' B' U B2 D' L F2 L' D R U2 R U2 B' R' U2 RU' R B' R' F2 U' L B' (25)
explanation:
inverse scramble: nice start: B L' U F2 (4)
apply on normal sramble: [pre-moves F2 U' L B'] nice continuation: D' B' U B2 R2
apply on inverse scramble: [pre-moves R2 B2 U' B D]: B L' U F2 (4+[5])
then continuation on inverse scramble was easy:
F2L: R B R' U R' U2 R B (12+[5])
LL: U2 R' U2 R' D' L F2 L' D R2 (22+[5])
pre-move correction: R2 B2 U' B D, 2 moves cancel (25)
Took my 90 minutes including finding a 29-move 1-hour solution

NB. I should reduce executing time otherwise I will get an DNF next WC as well:)

Gus
 

Stini

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That is a fantastic solution! I have been experimenting with that method as well in recent FMC scrambles, but I don't think I have yet used it in my final solutions. I only got 30 moves for that scramble with a more classical method, but I am happy that I found an optimal 2x2x3-block (which I although modified a bit to get an easier continuation).
 
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Hi folks,

For advanced FMC users here is a nice example of my NISS-method for FMC (Normal-Inverse-Scramble-Switch):
Scramble: (fmc.mustcube.net #265) F2 B' R' B D B F' R B F L' D2 U2 B2 D U' B' F D2 L' F2 B' R2 B2 R L' F2 U' F' L

my solve: D' B' U B2 D' L F2 L' D R U2 R U2 B' R' U2 RU' R B' R' F2 U' L B' (25)
explanation:
inverse scramble: nice start: B L' U F2 (4)
apply on normal sramble: [pre-moves F2 U' L B'] nice continuation: D' B' U B2 R2
apply on inverse scramble: [pre-moves R2 B2 U' B D]: B L' U F2 (4+[5])
then continuation on inverse scramble was easy:
F2L: R B R' U R' U2 R B (12+[5])
LL: U2 R' U2 R' D' L F2 L' D R2 (22+[5])
pre-move correction: R2 B2 U' B D, 2 moves cancel (25)
Took my 90 minutes including finding a 29-move 1-hour solution

NB. I should reduce executing time otherwise I will get an DNF next WC as well:)

Gus

Wow, Guus, I never thought of using it more than 1 time in a solution! I learned that trick from you at WC, but using it twice is just genius!
 

ardi4nto

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Hi folks,

For advanced FMC users here is a nice example of my NISS-method for FMC (Normal-Inverse-Scramble-Switch):
Scramble: (fmc.mustcube.net #265) F2 B' R' B D B F' R B F L' D2 U2 B2 D U' B' F D2 L' F2 B' R2 B2 R L' F2 U' F' L

my solve: D' B' U B2 D' L F2 L' D R U2 R U2 B' R' U2 RU' R B' R' F2 U' L B' (25)
explanation:
inverse scramble: nice start: B L' U F2 (4)
apply on normal sramble: [pre-moves F2 U' L B'] nice continuation: D' B' U B2 R2
apply on inverse scramble: [pre-moves R2 B2 U' B D]: B L' U F2 (4+[5])
then continuation on inverse scramble was easy:
F2L: R B R' U R' U2 R B (12+[5])
LL: U2 R' U2 R' D' L F2 L' D R2 (22+[5])
pre-move correction: R2 B2 U' B D, 2 moves cancel (25)
Took my 90 minutes including finding a 29-move 1-hour solution

NB. I should reduce executing time otherwise I will get an DNF next WC as well:)

Gus

This method is very good to add other options for continuations, but doesn't it consume a lot of time? especially for 1 hour solving..
and I hate to re-scramble again..
I used this method on current weekly competition, and takes me 40 minutes for just 1 36 moves solution.. :eek:
 
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AvGalen

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Can you somehow use insertions with that method?
Yes you can. Why do you think you couldn't?

The disadvantage of this method is that 1 hour is very short. You really have to keep track of your steps and which moves are performed on which scramble.

Basically you would:
Look at the state of the cube from state A.
If you can't find anything good to do, switch to the inverse state giving you twice as many chances to find something good to do
Switch to the inverse state when you can't find anything good to do again
 

Henrik

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The FMC scramble at FSPO '09

The scramble: L2 D2 F' R2 F' L2 F' D2 F2 R2 D' R2 B' U R' D L' B2 D F (20f)

And my solution:
A 2x2x2 block: .L' B U' B U B F2 U2 (8)
Pseudo F2L: L' D' L (3, 11)
Cube minus 5 corners: U R' U' (3, 14)
2 corners: R U R' D' R U' R' D (8, 22)
Correct layer: B' (1, 23)
Insert at . : L2 F' L B2 L' F L B2 (8, 31)
This cancels 2 moves L and B2 becomes B'

L2 F' L B2 L' F L B' U' B U B F2 U2
L' D L U R' U'
R U R' D' R U' R' D B'

What did I do? and more important what did i do wrong? the 6 moves for the sceleton was found by accident when i needed to solve the cube so I could scramble it again.

To quote Erik: Getting lucky is not a crime. ;)

I never thought that I should break the DK record. but hey.
The last 15 min of FMC i was shaking like crazy, of exitement.
And when the judge finaly said OK to my solution, I was so exited. :D
 

MistArts

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Jan 5, 2008
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Hi folks,

For advanced FMC users here is a nice example of my NISS-method for FMC (Normal-Inverse-Scramble-Switch):
Scramble: (fmc.mustcube.net #265) F2 B' R' B D B F' R B F L' D2 U2 B2 D U' B' F D2 L' F2 B' R2 B2 R L' F2 U' F' L

my solve: D' B' U B2 D' L F2 L' D R U2 R U2 B' R' U2 RU' R B' R' F2 U' L B' (25)
explanation:
inverse scramble: nice start: B L' U F2 (4)
apply on normal sramble: [pre-moves F2 U' L B'] nice continuation: D' B' U B2 R2
apply on inverse scramble: [pre-moves R2 B2 U' B D]: B L' U F2 (4+[5])
then continuation on inverse scramble was easy:
F2L: R B R' U R' U2 R B (12+[5])
LL: U2 R' U2 R' D' L F2 L' D R2 (22+[5])
pre-move correction: R2 B2 U' B D, 2 moves cancel (25)
Took my 90 minutes including finding a 29-move 1-hour solution

NB. I should reduce executing time otherwise I will get an DNF next WC as well:)

Gus

That is a very nice method and solution. But I believe it would be somewhat time consuming to do this.
 
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I just had to revive this thread. I hope others will post here again as well. It's a lot of fun!

Scramble: U F2 B' U2 B L D U' B L2 U2 F R' U' B2 L F B' L2 B' F' R' L' D2 R

Solution: U2 B D' F2 U' R L2 U' F' L' F U2 R U' L' U R' U' R' U' L' U R F L' F' L F L' F' (30HTM)

Nice start on normal scramble: U2 B D' F2 U' R (6/6)
R' U F2 D B' U2 as premove on inverse scramble: F L F' L' F L F' R' U' L U R L U' F' L F U L2(19/25)
Solution so far: U2 B D' F2 U' R L2 U' F' L' F U . L' R' U' L' U R F L' F' L F L' F' (25)
Insert at .: U R U' L' U R' U' L, 3 moves cancel.

30 moves, pretty good. I found the 25-move skeleton in about 20 minutes, I spent 30 minutes on the insertion.

Post your own solutions :)
 
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