The reconstruction thread

[qqwref]

I figured it would be useful to have a megathread for this. We can post requests for reconstructions (of WR solves and the like), cool reconstructions we've done, techniques, and so on.

A few useful links to start off with:
- Lucas Garron's reconstruction index
- Cube Explorer to track stickers when you don't have a scramble
- alg.garron.us to make sure your sequence solves the puzzle

[Kirjava]

Do 22.95 already, I've been bugging lucas to do it forever.

We have the scramble and a higher quality video ffs.

[qqwref]

Where's the scramble/vid? I'll do it.

This is the link to the 4x4 WR single I reconstructed recently: http://www.speedsolving.com/forum/sh...l=1#post570505

[Kirjava]

U L2 D' B2 U' R2 B2 F2 D' F2 L2 R2 F R2 D L2 R2 B' L' D' R F' for the scramble, I'll pm you the vid for bandwidth purposes

[qqwref]

It took an lot of work and trial/error (even the high quality video was pretty grainy/blurry on the cube section, and there were reflections on the stickers, and fingers and subtitles in the way), but:

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

inspection: x2 y
FL corners + 1 edge: D' R u D R' y' D' R D R'
FL center + 2nd edge: y D r' E' L
CLL: z2 U y l D R' z' R' x z' r' R2 U2 z D R2 D2
FL 3rd edge: R' l' z M D2 M'
LL 1st edge: z2 y R z' M z R'
LL 2nd edge: z' r' L' z D R' E R
LL 3rd edge: U' u' R E' R'
LSE hax: u R' E' R E2 R E R'
centers: R2 E E' r2 E M2 E'

52ish slice moves = 2.26 tps

http://alg.garron.us/?alg=x2_y%0AD-_..._B-_L-_D-_R_F-

[antoineccantin]

It took an lot of work and trial/error (even the high quality video was pretty grainy/blurry on the cube section, and there were reflections on the stickers, and fingers and subtitles in the way), but:

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

inspection: x2 y
FL corners + 1 edge: D' R u D R' y' D' R D R'
FL center + 2nd edge: y D r' E' L
CLL: z2 U y l D R' z' R' x z' r' R2 U2 z D R2 D2
FL 3rd edge: R' l' z M D2 M'
LL 1st edge: z2 y R z' M z R'
LL 2nd edge: z' r' L' z D R' E R
LL 3rd edge: U' u' R E' R'
LSE hax: u R' E' R E2 R E R'
centers: R2 E E' r2 E M2 E'

52ish slice moves = 2.26 tps

http://alg.garron.us/?alg=x2_y%0AD-_..._B-_L-_D-_R_F-

What method did he use?

[qqwref]

As far as I can tell the method is roughly:
- first layer corners and then center, try to add in an edge if you see it
- last layer corners in one step
- insert first layer edges until 3 are done
- use the keyhole in the first layer to insert 3 last layer edges
- solve the last 6 edges and centers (not sure what his strategy here is)

[DavidWoner]

I would guess he was just trying to solve the two remaining edges in each layer, and he just got an easy E-slice case.

[Kirjava]

This is awesome, thanks a lot for doing it.

CLL: z2 U y l D R' z' R' x z' r' R2 U2 z D R2 D2

Equivalent to F U R U' R' F' y R2 U2 R U2 R2

pretty damn cool

I would guess he was just trying to solve the two remaining edges in each layer, and he just got an easy E-slice case.

I agree. The 'LSE hax' is a Roux trick for solving UL/UR edges and orientation in one, but I think it's unlikely he used the orient -> permute technique and he probably just did UL/UR then midges.

You could always reconstruct his other solves for more info :P

[qqwref]

Feliks's 2.12 WR average on 2x2:

1. 2.38 U2 F' U2 F U2 R' F R' U'
inspection: x' z2
FL: R' U R U' R' U
CLL: R U2 R' U' R U' R'

2. 1.77 U' F' U2 F2 U' F R' F2 U
inspection: y'
FF: R' U' R2 U'
EG2: R U' L' U R' U' R' U2 R2

3. (1.75) U2 R' F' R U2 R F2 R2
inspection: y x
FL: R' U R2 U R2'
CLL: F R U R' U' R U R' U' F' U

4. 2.21 U' F' U R F2 U' F R2 F'
inspection: x y
FL: U' L' U R U' R' L' U L
CLL: U2' R U R' U R U' R' R U' R'

5. (2.46) R2 U R U F2 U2 R2 F'
inspection: y'
FL: R U2 R' U R U' R' U
CLL: U' R U' R' U2 R L U' R' U L' U'

You could always reconstruct his other solves for more info :P

Yeahhhhh no thanks.