How do you solve this commutator optimally?

[Repsela]

Hi Considering this comm: FD (buffer) RB DR what is the optimal and fastest way to solve it?

 

[yoinneroid]

Hi Considering this comm: FD (buffer) RB DR what is the optimal and fastest way to solve it?

What I do: x y' R' U M2 U' R U M2 U' y x'
What I wish I would do: B M2 U R2 U' M2 U R2 U' B'
What is probably faster: Uw R U' M2 U R U' M2 U R2 Uw'

 

[Tao Yu]

What I do: x y' R' U M2 U' R U M2 U' y x'
What I wish I would do: B M2 U R2 U' M2 U R2 U' B'
What is probably faster: Uw R U' M2 U R U' M2 U R2 Uw'

You're using the buffer DF instead of FD...

I would use x y F' R U M' U2 M U R' F y' x' (this is a setup to a 4 move comm)

 

[Ollie]

What I do: x y' R' U M2 U' R U M2 U' y x'
What I wish I would do: B M2 U R2 U' M2 U R2 U' B'
What is probably faster: Uw R U' M2 U R U' M2 U R2 Uw'

FD buffer

Optimal is 10 HTM, but the speed-optimal alg is much better and it's only one move extra.

Uw R U M' U' R U M U' R2 Uw'

edit: ninja'd. And also, in future this should go in the One Answer BLD Question Thread

 

[Nicck]

here are some that are optimaler - 9 STM - but not center-safe:

[ R' U F' ; F2 E' F2 E ] = R' U F E' F2 E F U' R
[ R' B' D' ; D2 S D2 S' ] = R' B' D S D2 S' D B R
...
...

conjugated 4-movers, each with an A9 and B9 version (invert last setup turn and 4-mover of A9 version to get B9 version)

EDIT: yup. ouch.

 

[Parham Saeednia]

What i do is :
z' x' D' M' U' R U M U' R' U D x z
10 move

 

[Stefan]

Considering this comm: FD (buffer) RB DR

That's not a commutator. That's a case.

Commutators are move sequences of a certain type (ABA'B') and they can be used to solve cases.

 

[Repsela]

FD buffer

Optimal is 10 HTM, but the speed-optimal alg is much better and it's only one move extra.

Uw R U M' U' R U M U' R2 Uw'

edit: ninja'd. And also, in future this should go in the One Answer BLD Question Thread

Ok thank you

 

[A Leman]

FD is not my buffer and I don't rotate too often with UF, but this may be worth a try.
z'U'rUMU2M'Ur'Uz