Commutators vs. r2 for big cubes BLD

[Mike Hughey]

I just tried a scramble and came across a situation that I don't know how to handle right of the bat. In my buffer (FD) is DF, and then in DF is DB. These are all in the r and l slices. I'm not sure how to do these commutators. If one of you guys could help me out with that, that would be great.

I would probably do (L' l') as a setup move, then [D b D', F2] (in other words, D b D' F2 D b' D' F2), then undo the setup move.

 

[Lucas Garron]

Edit...
I just tried a scramble and came across a situation that I don't know how to handle right of the bat. In my buffer (FD) is DF, and then in DF is DB. These are all in the r and l slices. I'm not sure how to do these commutators. If one of you guys could help me out with that, that would be great.

Do you know how to shoot BU (UB?), by flipping an edge?
This is similar, I'd do:
x [r, flip UF without affecting the l or r slice] x'

Or try it this way: x2 [r, shoot UB] x2'
I'd do: x2 r (U R' U' B' R2 B) r' (B' R2' B U R U') x2'

 

[masterofthebass]

I didn't know how to flip UF except for the algorithm that erik uses for the l slice edges. I figured that it wouldn't be much faster for me to do it that way than using straight r2. I just didn't know the commutator for it.

 

[abunickabhi]

r2 is very fast on big cubes.....with move cancellations...its 5.5 moves per piece

 

[JamesDanko]

r2 is very fast on big cubes.....with move cancellations...its 5.5 moves per piece

8 years bro, you're a little late to the party on this one.

 

[Ollie]

8 years bro, you're a little late to the party on this one.

He says to the official AsR holder for 5BLD.

 

[mark49152]

r2 is very fast on big cubes.....with move cancellations...its 5.5 moves per piece

What solutions did you count for the l and r slices?

 

[Goosly]

What solutions did you count for the l and r slices?

Probably using advanced r2.

Example: Fd Ru
(l' U2) r2 B L' B' r2 B L B' (U2 l)
which is 6 moves per piece.

Other example: Bu Fl
(B) U' L U r2 U' L2 U r2 U' L U (B')
which is 6.5 moves per piece.

I'm not sure how he got the 5.5 average though

 

[mark49152]

Probably using advanced r2.

That's a nice trick for the l slice pieces, thanks.

 

[MatejMuzatko]

Probably using advanced r2.

Example: Fd Ru
(l' U2) r2 B L' B' r2 B L B' (U2 l)
which is 6 moves per piece.

Other example: Bu Fl
(B) U' L U r2 U' L2 U r2 U' L U (B')
which is 6.5 moves per piece.

I'm not sure how he got the 5.5 average though [emoji14]

He probably got that average by using better solutions... Or more advanced, using r and r' interchanges which probably doesn't
Bu Fl can be done (L' U) B' R B r2 B' R' B r2 (U' L) which is 6 moves per piece
Or (U2) D' L D r' D' L' D r (U2) which is 5 moves per piece but I wouldn't count it as r2 obviously, it's r', but it's using the same principles

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