Random Blindfold Cubing Discussion

[Cubenovice]

When ever there were swaps involving the bottom layer centre, I did x r U2 r' to set up the centre in the F face and then commuted with the other centre and undid that.

Assuming your buffer is Ulb: for pieces in the D layer just do f, f', r or r' to bring it to a side face.
For Dlb just preceed f, f', r or r' with a D, D' or D2 move.

I also had lots of problems when setting up centres involving B face.

B face is just a matter of practice, there is nothing special about the B face

Also I had problems when I had to commute three centres (buffer and the other two) , which were lying on the exact spots of their respective faces.

Do you mean something like Ulb-Lbu-Bru? (each piece being the top left center when looking directly onto that face)
Again nothing special...
u r' U2 r u' r' U2 r

or something like:Ulb-Lbu-Flu?
u r' U2 r u r' U2 r u2

if you write some specific cycles you have trouble with it makes it easier to help you

 

[Bhargav777]

For cases involving D face, I understood what should be done, thanks!
Will try to tell you some vague cases, hope I'm right about what centres I mean.
Ulb Ulf(bottom left centre of U face) Rlb (top left of R face)

Ulb Brf(top right of B face) Rrf(top right of R face) - should I do U' , so that the buffer goes to top left position finish swapping and do U?

Ulb Flu(top left of F face) Bru (top right of B face) -should I do a U and proceed, then do U'?

Ulb Urf Dlb (top left of D face)
Also not sure about how to perform two centre swaps involving opposite centres and adjacent centres not involving buffers.
Sorry for these many questions. I've many more, but if these are cleared, I can get an idea of how I should start figuring out the rest. thanks.

 

[Ollie]

Also not sure about how to perform two centre swaps involving opposite centres and adjacent centres not involving buffers.

Adjacent swaps - you have a few options

r U r' [d'] r U' r' [d] should swap Fru, Fdr and Rbd
A Niklas commutator should be fine too z' [r] U' l' U [r'] U' l U z

Opposite swaps

I really like using U r2 U' [l2] U r2 U' [l2] which you can adjust for non-buffer center swaps by doing a x/x' rotation.
But you can break into the 2-cycle from the buffer position, and it will solve the second target and leave an easier 2-cycle involving the buffer piece. For example, (HP) where H and P are two targets on the front and back faces,you break into the cycle from buffer A by cycling (A,HP) which will solve P and leave (AH).

 

[Cubenovice]

Ulb Ulf(bottom left centre of U face) Rlb (top left of R face)

Ulb Brf(top right of B face) Rrf(top right of R face) - should I do U' , so that the buffer goes to top left position finish swapping and do U?

Ulb Flu(top left of F face) Bru (top right of B face) -should I do a U and proceed, then do U'?

Ulb Urf Dlb (top left of D face)

I'm not good at notation but I think you got something wrong there

Ulb - Uface leftback
Ulf - Uface leftfront
Rlb - Rface left back uh? you mention top left of R face so I assume this is Rfu Rface frontup
the small letters refer to the slices the center is on.

l u l' U l u' l' U


Ulb Brf(top right of B face) Rrf(top right of R face)
Assuming with right of B face you mean it's right side when looking directly at it (not "through" the cube)
= Ulb Blu Rbu
for this cycle you can indeed move the uffer with U' and proceed with u' b U b' u b U' b' then do U

If both targets are on the slices that go through the buffer piece you can indeed move the buffer with U moves.
But this can give akward comms with b or f moves...

What I do is u2 r U r' u' r U' r' u' on emove less and has nice r moves


let me know if these are the correct cycles

 

[moralsh]

29.66 Official Mo3 by Marcell Endrey @Slovenian open, wow

EDit: and 4BLD WR 2:30.62 ! wow (2)

 

[Bhargav777]

Re: thanks Ollie and cube novice

Thanks a lot Ollie! Niklas is awesome! I'm gonna use it from now on!
Ulb Ulf Ruf swap that cube novice gave, could be applied only if it is already U2 away? Thanks, I understand the notation
one more case please - Ulb Ulf(or any other centre on U face) Dlb (or any other centre on D). I sit for minutes together when I get this case!

 

[Ollie]

Thanks a lot Ollie! Niklas is awesome! I'm gonna use it from now on!
Ulb Ulf Ruf swap that cube novice gave, could be applied only if it is already U2 away? Thanks, I understand the notation
one more case please - Ulb Ulf(or any other centre on U face) Dlb (or any other centre on D). I sit for minutes together when I get this case!

The best I can think of is (U' y' x') [d2] r U r' [d2] r U' r' (x y U) I'll look properly when I'm back tonight

 

[TheNextFeliks]

How can I improve my execution? I use m2/op. I average like 2 mins for execution.

 

[JasonK]

How can I improve my execution? I use m2/op. I average like 2 mins for execution.

Thinkahead. You want no pauses at all in execution, so while you're solving one target you already know what you're going to do for the next target.

Also turn faster.

 

[Username]

How can I improve my execution? I use m2/op. I average like 2 mins for execution.

Turn slower without pauses. You need to know all the setups without thinking

 

[TheNextFeliks]

U

Thinkahead. You want no pauses at all in execution, so while you're solving one target you already know what you're going to do for the next target.

Also turn faster.

Turn slower without pauses. You need to know all the setups without thinking

Lol. One says turn faster and the other says slower. How can I turn faster? I just cant. Both say to work on thinkahead. I think I am fine at edges. It is corners that are my weak point. someone needs to find a better intermediate corners method. I am getting better with corner setups but I still have some trouble.

 

[Username]

U



Lol. One says turn faster and the other says slower. How can I turn faster? I just cant. Both say to work on thinkahead. I think I am fine at edges. It is corners that are my weak point. someone needs to find a better intermediate corners method. I am getting better with corner setups but I still have some trouble.

Start with OP, after OP go 3-style

 

[TheNextFeliks]

Start with OP, after OP go 3-style

I use op. I avg 45 for exec with 8 targets. And I can do sub-2.5 second y perm on average. I need to work on not taking pauses to remember. I memo corners memo edges exec edges exec corners.

 

[Ollie]

Lol. One says turn faster and the other says slower. How can I turn faster? I just cant. Both say to work on thinkahead. I think I am fine at edges. It is corners that are my weak point. someone needs to find a better intermediate corners method. I am getting better with corner setups but I still have some trouble.

Practice your set-up moves until they are automatic. Do some sighted solves, follow the stickers through the set-up moves and understand what the set-up moves are actually doing. Once you've got this down, start turning slowly first during execution so that you can recall the next letter in your memo, prepare yourself to do the next series of set-ups and solve the next target. This is thinking ahead rather than looking ahead.

Once you get better at thinking ahead and you've eliminated the pauses in execution, return to faster turning. Learn to turn faster still by doing a time attack of all the corner/edge set-up moves and practice executing the T/J/Y perms as fast as possible.

Intermediate corners method - R2. You can also try Boomerang method for corners but it is a bit of a backwards step considering you have to memorize orientation and permutation.

 

[TheNextFeliks]

Practice your set-up moves until they are automatic. Do some sighted solves, follow the stickers through the set-up moves and understand what the set-up moves are actually doing. Once you've got this down, start turning slowly first during execution so that you can recall the next letter in your memo, prepare yourself to do the next series of set-ups and solve the next target. This is thinking ahead rather than looking ahead.

Once you get better at thinking ahead and you've eliminated the pauses in execution, return to faster turning. Learn to turn faster still by doing a time attack of all the corner/edge set-up moves and practice executing the T/J/Y perms as fast as possible.

Intermediate corners method - R2. You can also try Boomerang method for corners but it is a bit of a backwards step considering you have to memorize orientation and permutation.

Ok. Thanks. R2 is brutal cause most of the targets you basically need an algorithm. However I might watch bldmaster's tutorial. That's how I learned m2.

 

[Ollie]

Ok. Thanks. R2 is brutal cause most of the targets you basically need an algorithm. However I might watch bldmaster's tutorial. That's how I learned m2.

I'd say that's true for 9 of them, so 9 algs to learn in total, which is almost nothing. The rest are intuitive.

 

[TheNextFeliks]

I'd say that's true for 9 of them, so 9 algs to learn in total, which is almost nothing. The rest are intuitive.

Ok. And R2 is faster than OP once you learn the algs. I'll try it. The bad thing is isn't UBL the common buffer for 3 style not DFR. That could make things annoying switching back. If I ever do.

 

[Username]

Ok. And R2 is faster than OP once you learn the algs. I'll try it. The bad thing is isn't UBL the common buffer for 3 style not DFR. That could make things annoying switching back. If I ever do.

For 3-style you can choose whatever buffer you'd like

 

[A Leman]

Ok. And R2 is faster than OP once you learn the algs. I'll try it. The bad thing is isn't UBL the common buffer for 3 style not DFR. That could make things annoying switching back. If I ever do.

I think marcell uses a DFR buffer and it seems to work well for him. I don't think the buffer choice matters that much. If you use DFR with DF, it may actually be easier during parity because both buffers are on the same layer.

 

[bobthegiraffemonkey]

Ok. And R2 is faster than OP once you learn the algs. I'll try it. The bad thing is isn't UBL the common buffer for 3 style not DFR. That could make things annoying switching back. If I ever do.

You could mirror to do L2 instead with UBL buffer? I'd guess U2 is also a viable option, but I've never really looked at R2.