[Help Thread] FMC Discussion

[blah]

@Cride5: You forgot the ones that swap UF/FU and BR/RB:

U2 R' U' R U' R' U' R (8f*)
U2 B' U2 B' U2 B' U2 B2 (8f*)
U' R U R U' R U R2 (8f*)
R2 U' R' U R' U' R' U (8f*)
R2 F' R2 F' R2 F' R2 F2 (8f*)
R' U R U R' U R U2 (8f*)
F2 R2 F R2 F R2 F R2 (8f*)
B2 U2 B U2 B U2 B U2 (8f*)

 

[AvGalen]

Is there any study that shows the distribution of the amount of moves for step 1 and for step 2?

I think this is what you're asking for.

http://www.math.rwth-aachen.de/~Mar...s/michael_reid__two_stage_filtration_(2).html

http://www.math.rwth-aachen.de/~Mar...T._Winter__Re___two_stage_filtration_(2).html

Indeed, that is what I wanted to know. It follows the distribution pattern I am used to now: "Sprinters trying to run long-distance" (very few stop in the beginning, most make it over half but not many actually finish)

 

[DavidWoner]

I finally finished this:

http://dtwoner.110mb.com/index.php?p=1_4_FMC

It's every FMC solve I have ever done that I could find, in chronological order.

 

[blah]

I finally finished this:

http://dtwoner.110mb.com/index.php?p=1_4_FMC

It's every FMC solve I have ever done that I could find, in chronological order.

You've never even supped-40 I've had tons of those, and I've probably already done as many solves as you have (with tons of DNFs too)

----------

Accomplishment post: First sub-30 in a long while

Weekly competition 2009-30, 3x3x3 speedsolve, scramble 1: R2 U' L2 D2 U F2 L2 B2 L2 U' L2 R B2 L' U R' D B' D' B' U'

Premoves + inverse scramble: F2 U' + U B D B D' R U' L B2 R' L2 U L2 B2 L2 F2 U' D2 L2 U R2

2x2x2: D2 F2 B D' B' (5/5)
2x2x3: D R F2 (3/8)
Fridrich F2L: R + R D2 R' D' R D R' + R' D' R (9/17)
All but 3 corners: F L2 B' L' B L' F' . + D2 (5/22) (M-conjugated Sune + AUF)
Undo premoves: F2 U' (2/24)
Corner 3-cycle insertion at .: F L B' L' F' L B L' (4/28)

Inverse solution: D2 F2 B D' B' D R F2 R2 D2 R' D' R D R2 D' R F L2 B' L2 F' L B L' D2 F2 U' (28)

Done in 37 minutes I didn't look for better insertions after this, don't think I could top a 7-move cancellation I've learned to put less effort into finding good starts, but instead find better endings with "good enough" starts

 

[DavidWoner]

I finally finished this:

http://dtwoner.110mb.com/index.php?p=1_4_FMC

It's every FMC solve I have ever done that I could find, in chronological order.

You've never even supped-40 I've had tons of those, and I've probably already done as many solves as you have (with tons of DNFs too)

I did back in the early days, but I would just DNF them. Nowadays I DNF anything over 35.

 

[blah]

Another accomplishment post First time having two sub-30s in a row, aaand... new PB!

Weekly competition 2009-30, 3x3x3 speedsolve, scramble 2: D L2 U' R2 D' L2 U R2 F2 U2 B2 F' U2 L' D R B2 U' F2 D' R'

Premoves + scramble: U2 L + D L2 U' R2 D' L2 U R2 F2 U2 B2 F' U2 L' D R B2 U' F2 D' R'
2x2x2: R2 B2 . (2/2)
2x2x3: D' L D2 L' (4/6) <---
F2L: U F' U2 R U (4/10) <---
All but 3 corners: U' F' R' F R U + F (6/16)
Undo premoves: U2 L (2/18)
Corner 3-cycle insertion at .: B' U B D B' U' B D' (6/24)

Solution: R2 B U B D B' U' B D2 L D2 L' U F' U2 R F' R' F R U F U2 L (24) <---

Awesome solution! Found the 2 + 6 = 8-move 2x2x3 in less than 2 minutes This is a very easy scramble with great starts (found another 9-move 2x2x3) and a LOT of easy expansions after the 2x2x3, try it!

Loads of other good starts:

Spoiler

(Premoves: U2 L (2/2))
2x2x3: R2 B2 D' L D2 L' (6/8)
EO: U' R U2 F' U' (5/13)
Triple x-cross: R' F R (3/16)

(Premoves: U2 L (2/2))
2x2x3: R2 B2 D' L D2 L' (6/8)
Triple x-cross: U' R U R' F R (6/14)
14-move triple x-cross, again

(Premoves: U2 L (2/2))
2x2x3: R2 B2 D' L D2 L' (6/8)
Triple x-cross: U F' U' D' F2 D or D' F2 D U F U' (6/14)
This one looked very promising, but I couldn't get anything nice Interesting discovery: The maneuver U F' U' D' F2 D (or D' F2 D U F U') is of order 2 :rolleyes:

(Premoves: U2 L (2/2))
2x2x3: R2 B2 D' L D2 L' (6/8)
Triple x-cross: D' F2 D F (4/12)
(Kind of a PB) 12-move triple x-cross with all edges oriented

No premoves.
2x2x3: F2 U D B2 D L' F D F (9/9)
F2L: D' B' L' D L B R' F' R' F R' (11/20)

No premoves.
2x2x3: F2 U D B2 D L' F D F (9/9)
F2L: F D F' D' F' U' R' U R' F R' (10/19)

No premoves.
2x2x3: F2 U D B2 D L' F D F (9/9)
Triple x-cross: D' B' L' D L B R (7/16)
F2L pair already formed, can be inserted in 3 different ways.

 

[blah]

3 sub-30s in a row!

Weekly competition 2009-30, 3x3x3 speedsolve, scramble 3: U' F2 U L2 F2 R2 F2 R2 D F2 D' F R U' B R' D2 L2 F' D' R'

Premove + scramble: R + U' F2 U L2 F2 R2 F2 R2 D F2 D' F R U' B R' D2 L2 F' D' R'

Really cool 2x2x3: .. R' L F' L2 R' F' B' R2 (8/8) <--- AWESOME! Not just in terms of move count, but I love the way the blocks just fall into place
All but 3 corners and 3 edges: B' U B F' L' F U' . (7/15)
Undo premove: R (1/16)
Corner 3-cycle insertion at .: U2 R' D2 R U2 R' D2 R (6/22)
Edge 3-cycle insertion at ..: B' R' L U2 R L' B' (7/29) <--- yeah I really suck at edge insertions

Solution: B' R' L U2 R L' B' R' L F' L2 R' F' B' R2 B' U B F' L' F U R' D2 R U2 R' D2 R2 (29 HTM = 25 STM )

 

[blah]

Thought this might be useful:

U R2 B2 L2 D L2 B2 R2 (8f*)
U L2 B2 R2 D R2 B2 L2 (8f*)
D F2 L2 B2 U R2 B2 L2 (8f*)
D B2 L2 F2 U L2 B2 R2 (8f*)
L2 U L2 B2 R2 D R2 B2 (8f*)
L2 D F2 L2 B2 U R2 B2 (8f*)
B2 L2 U L2 B2 R2 D R2 (8f*)
B2 L2 D F2 L2 B2 U R2 (8f*)

R2 U' B2 L2 F2 D' L2 B2 (8f*)
R2 D' R2 B2 L2 U' L2 B2 (8f*)
R2 B2 L2 U' F2 L2 B2 D' (8f*)
R2 B2 L2 D' L2 B2 R2 U' (8f*)
L2 B2 R2 U' B2 L2 F2 D' (8f*)
L2 B2 R2 D' R2 B2 L2 U' (8f*)
B2 R2 U' B2 L2 F2 D' L2 (8f*)
B2 R2 D' R2 B2 L2 U' L2 (8f*)

 

[MistArts]

Thought this might be useful:

U R2 B2 L2 D L2 B2 R2 (8f*)
U L2 B2 R2 D R2 B2 L2 (8f*)
D F2 L2 B2 U R2 B2 L2 (8f*)
D B2 L2 F2 U L2 B2 R2 (8f*)
L2 U L2 B2 R2 D R2 B2 (8f*)
L2 D F2 L2 B2 U R2 B2 (8f*)
B2 L2 U L2 B2 R2 D R2 (8f*)
B2 L2 D F2 L2 B2 U R2 (8f*)

R2 U' B2 L2 F2 D' L2 B2 (8f*)
R2 D' R2 B2 L2 U' L2 B2 (8f*)
R2 B2 L2 U' F2 L2 B2 D' (8f*)
R2 B2 L2 D' L2 B2 R2 U' (8f*)
L2 B2 R2 U' B2 L2 F2 D' (8f*)
L2 B2 R2 D' R2 B2 L2 U' (8f*)
B2 R2 U' B2 L2 F2 D' L2 (8f*)
B2 R2 D' R2 B2 L2 U' L2 (8f*)

I use this and its inverse:

[r2 f2 r2 (u/u'/u2)]*2

 

[AvGalen]

Thought this might be useful:

U R2 B2 L2 D L2 B2 R2 (8f*)
U L2 B2 R2 D R2 B2 L2 (8f*)
D F2 L2 B2 U R2 B2 L2 (8f*)
D B2 L2 F2 U L2 B2 R2 (8f*)
L2 U L2 B2 R2 D R2 B2 (8f*)
L2 D F2 L2 B2 U R2 B2 (8f*)
B2 L2 U L2 B2 R2 D R2 (8f*)
B2 L2 D F2 L2 B2 U R2 (8f*)

R2 U' B2 L2 F2 D' L2 B2 (8f*)
R2 D' R2 B2 L2 U' L2 B2 (8f*)
R2 B2 L2 U' F2 L2 B2 D' (8f*)
R2 B2 L2 D' L2 B2 R2 U' (8f*)
L2 B2 R2 U' B2 L2 F2 D' (8f*)
L2 B2 R2 D' R2 B2 L2 U' (8f*)
B2 R2 U' B2 L2 F2 D' L2 (8f*)
B2 R2 D' R2 B2 L2 U' L2 (8f*)

I use this and its inverse:

[r2 f2 r2 (u/u'/u2)]*2

Please, write down these algs differently so people can see that many are the same only shifted 1 move
L2 B2 (R2 U' B2 L2 F2 D')
B2 (R2 U' B2 L2 F2 D') L2
(R2 U' B2 L2 F2 D') L2 B2

Especially for FMC it is important to see that you can start them at different points so you can have a much bigger chance of cancellations

MistArts notation is great to understand how this alg works, but might be confusing for FMC

 

[blah]

Please, write down these algs differently so people can see that many are the same only shifted 1 move
L2 B2 (R2 U' B2 L2 F2 D')
B2 (R2 U' B2 L2 F2 D') L2
(R2 U' B2 L2 F2 D') L2 B2

Especially for FMC it is important to see that you can start them at different points so you can have a much bigger chance of cancellations

MistArts notation is great to understand how this alg works, but might be confusing for FMC

Actually, I left it that way intentionally I myself had a great feeling of umm... a cube-gasm when I realized how beautiful that alg was because of it's "shape-shifting abilities", and I wanted others to have the opportunity to discover this on their own too Such things just lose their elegance when they're spoondfed :rolleyes:

 

[AvGalen]

Please, write down these algs differently so people can see that many are the same only shifted 1 move
L2 B2 (R2 U' B2 L2 F2 D')
B2 (R2 U' B2 L2 F2 D') L2
(R2 U' B2 L2 F2 D') L2 B2

Especially for FMC it is important to see that you can start them at different points so you can have a much bigger chance of cancellations

MistArts notation is great to understand how this alg works, but might be confusing for FMC

Actually, I left it that way intentionally I myself had a great feeling of umm... a cube-gasm when I realized how beautiful that alg was because of it's "shape-shifting abilities", and I wanted others to have the opportunity to discover this on their own too Such things just lose their elegance when they're spoondfed :rolleyes:

Next time someone asks a question about F2L I will just answer: solve the corners and edges in pairs
Next time someone asks a question about the last layer I will just answer: orient, then permute
Next time someone asks a question about blindfolded I will just answer: "memorise cycles, solve cycles, fix parity"

That way I will become elegant

 

[blah]

Ah, but you see... No one asked this time

 

[blah]

Might as well post these...

Weekly competition 2009-30, 3x3x3 speedsolve, scramble 4: U L2 U2 L2 U2 B2 D L2 B2 U L2 B R' B' U' R B2 F D2 L D

2x2x2: F' D' B U' R2 (5/5)
2x2x3: L' D2 L' B2 D' (5/10)
EO: U' L U2 B' U' (5/15)
F2L: B2 L2 B2 L B L' B' L B' (9/24)
LL: F L F' L F L2 F' L2 (8/32)

My first pure Petrus solution I found the ending really elegant, everything just fell into place nicely

----------

Weekly competition 2009-30, 3x3x3 speedsolve, scramble 5: R2 U L2 U' R2 B2 D' U' B2 L F L B R D L' D R' U F R2

Inverse scramble: R2 F' U' R D' L D' R' B' L' F' L' B2 U D B2 R2 U L2 U' R2

1x2x3: B' U R L' U L D' (7/7)
Pseudo-triple x-cross: F' R2 L D' L' (5/12) <---
All but 5 edges: R U' R U R' L (6/18)
Edge 3-cycle: B2 R U' D B2 U D' R B2 (9/27)
Edge 3-cycle: U2 F' L2 D2 R2 B' D2 L2 (8/35)

Really beautiful skeleton, lousy "insertions". Spent half an hour looking for insertions, found none, so I just did two 3-cycles

----------

Question: I finally got myself another cube, a decent storebought. But I realize that I don't use it at all, not even for insertions or anything, I just seem to habitually use the same cube over and over again. I'd like to know what you guys use your other cubes for, since you're allowed three cubes in an official FMC attempt. I really don't know why I'd need TWO other cubes when I don't even know what to do with ONE other cube

 

[TMOY]

I usually use two cubes, one for corners and the other one for the rest of the solve.
In competitions where no picture comes with the scramble I use the third cube as a reference.

 

[AvGalen]

1 cube for the regular scramble, 1 for the inverse
After a while I start experimenting from a certain nice start on the 3rd cube. When I fail I try to restore it to the state of the example cube

 

[mrCage]

Ah, but you see... No one asked this time

"Found some questions to the answers ..." -INXS, the Swing-

Per

 

[JLarsen]

Hey guys! I went and learned Hiese! Once I get better at the second to last step I'll be in great shape to getting some of my first decent FMC solutions up here =].

Edit: OMG. Ow....my head hurttsssssss this is why I don't do FMC.

I'm trying to understand pair 3 cycles and I'm killing myself here.

http://www.ryanheise.com/cube/pair_3_cycles.html

 

[blah]

Hey guys! I went and learned Hiese! Once I get better at the second to last step I'll be in great shape to getting some of my first decent FMC solutions up here =].

Edit: OMG. Ow....my head hurttsssssss this is why I don't do FMC.

I'm trying to understand pair 3 cycles and I'm killing myself here.

http://www.ryanheise.com/cube/pair_3_cycles.html

Don't worry dude. I didn't know about that stuff until just now, and I've been doing fine in FMC so far If it helps, I still don't fully understand it till now

Edit: I *think* I've got it. Pair 3-cycles = fat (double-layered) corner 3-cycles, at least that's what it looks like to me :rolleyes:

 

[JLarsen]

Yeah I can do them but I can't get them to work =P. I'm just going to do solving of the edges and corners separate for now since I can do that find =P. I wonder what kind of move counts I can get with a Petrus/Heise solve at my level lol.