2 (or 4?) gen 4x4x4 solving

[Brett]

I've been trying this for awhile but I've never made a full solve out of it.

Scramble the cube with this algorithm. (4x4x4)
R U' r U u' R2 u' r2 2U 2r R' r U' 2u R' 2u r' R 2U R' 2u r u R u'

Solve with just R U r u moves.

 

[Swordsman Kirby]

Stefan, how old is this?!

http://stefan-pochmann.de/spocc/videos/UuRr4x4.wmv

 

[masterofthebass]

It's much more fun on 5x5, since you don't have the crappy problems of flipped edges... 5x5 is much more fun.

 

[cuBerBruce]

Let's see.

< R, U, r, u >

It shouldn't be too hard to count the generators. 1 ... 2 ... 3 ... 4.

It looks like 4 generators to me.

 

[Stefan]

It was about 3.5 years ago:
http://games.groups.yahoo.com/group/speedsolvingrubikscube/message/13653

 

[Lucas Garron]

I have no idea what the placement of the 2s in your scramble mean, but I tried somehow following, and I got 2:26 for the solve....

I solve the left half of the u slice, the right face (psuedo-Sune: u'R'uR'u'R2u), the other faces, place FDr and BDr, pair edges (perhaps fixing some parities), solve 2-gen 3x3x3, fix parity if necessary.

Note:
(rU2)5
UR'U' r URU' r UR'U' r2 URU' (used to be my r2 comm)

 

[Brett]

It just means I sometimes forget if it's U2 or 2U.

I got OLL parity, and I don't feel like fixing that 2-gen. >_>

I'll have to try it on a 5x5x5 sometime. Once I get around to convincing my parents to let me buy one.

 

[Lucas Garron]

It just means I sometimes forget if it's U2 or 2U.

:rolleyes:

I got OLL parity, and I don't feel like fixing that 2-gen. >_>

Does anyone actually have a 2-gen OLL parity in rU? (Mitchell, I'm looking at you.)


5x5x5:
Just got 2:52 using r2.
(Who wants algs?)

 

[masterofthebass]

I got a 2:10 on my first solve without parity today on 5x5

 

[Tim Reynolds]

Does anyone actually have a 2-gen OLL parity in rU? (Mitchell, I'm looking at you.)

r U2 r U2 r U2 r U2 r U' (Rr)' U R U' (Rr) U R' u R U R' (Uu)' R' U R (rR) U' R' U r' U' R' U R u R U' R' u' R2 u R U R' u' R' U2 R' U R' U' R U R' U' R2 U R' U R U2 R' U2 R' U' R U' R' U2 R U'
flips BR

Want one that flips UF? Simple. U2 (Rr) U2 r U2 r U2 r U2 r U' (Rr)' U R U' (Rr) U R' u R U R' (Uu)' R' U R (rR) U' R' U r' U' R' U R u R U' R' u' R2 u R U R' u' R' U2 R' U R' U' R U R' U' R2 U R' U R U2 R' U2 R' U' R U' R' U2 R U' R' U2

Nice and short.

 

[watermelon]

Does anyone actually have a 2-gen OLL parity in rU? (Mitchell, I'm looking at you.)

rU (22 moves):
U2 r' U2 r U2 r' U2 r' U r' U r' U2 r2 U2 r' U2 r' U r U' r2
U2 r' U2 r U2 r' U2 r' U' r' U' r' U2 r2 U2 r' U2 r' U' r U r2
U2 r2 U r U' r' U2 r' U2 r2 U2 r' U' r' U' r' U2 r' U2 r U2 r'
U2 r2 U' r U r' U2 r' U2 r2 U2 r' U r' U r' U2 r' U2 r U2 r'
r U2 r' U2 r U2 r U r U r U2 r2 U2 r U2 r U r' U' r2 U2
r U2 r' U2 r U2 r U' r U' r U2 r2 U2 r U2 r U' r' U r2 U2
r2 U r' U' r U2 r U2 r2 U2 r U' r U' r U2 r U2 r' U2 r U2
r2 U' r' U r U2 r U2 r2 U2 r U r U r U2 r U2 r' U2 r U2

I'll add RrU later, if the algs are shorter.