Older cubers discussions

[pglewis]

None of the above are what I've used for V for ages: z D' R2 D R2 U R' D' R U' R U R' D R U'

 

[mark49152]

I used to use yours @pglewis, but switched to avoid the rotation. I still rotate z for RUD N-perms though.

 

[ravicvn]

I got into edge parity issue with 4x4 initially but I was able to avoid it totally by using a procedure and have been successful in avoiding edge parity.

Is it usual to not to get into 4x4 edge parity at all?

 

[Sergey]

I got into edge parity issue with 4x4 initially but I was able to avoid it totally by using a procedure and have been successful in avoiding edge parity.

Is it usual to not to get into 4x4 edge parity at all?

There is no edge parity on 4x4, only OLL and PLL parities. Edge parity may occur only on 5x5 and higher.

 

[pglewis]

I think it's those wide U and D moves that get me with the GAN. Because it does have some flex and when you only hold 1 layer it distorts a little easier.

Yeah, I think you completely nailed the issue I've been having. I've also had some fairly fast solves with it including a full step 17.1, which is really fast for me.

With the green GES and tweaking the tensions (roughly 2-3 threads exposed above the nut) I think I've finally managed to find a decent sweet spot for me.

I used to use yours @pglewis, but switched to avoid the rotation. I still rotate z for RUD N-perms though.

I'd probably try yours but the other one works well enough for me and I have bigger issues with some OLLs. I'm sticking that one in the spreadsheet for later though.

I never could get the RUD algs for the N-Perms to flow well for me for some reason, despite probably a year and a half with those as my primary algs... not like I gave up easily. Now I use a less efficient RUL alg for one of 'em and just do J-Perm twice for the other o_O.

 

[ravicvn]

There is no edge parity on 4x4, only OLL and PLL parities. Edge parity may occur only on 5x5 and higher.

Sorry, it's OLL PARITY

 

[Sergey]

Sorry, it's OLL PARITY

As I know there is no way to avoid parities on 4x4 (they can occur in about 50% of solves). BTW, if such an opportunity existed and was fast, then it would be used by speedcubers. But there is a way to solve parities using appropriate algs. What do you mean by "I was able to avoid it totally by using a procedure"?

 

[ravicvn]

As I know there is no way to avoid parities on 4x4 (they can occur in about 50% of solves). BTW, if such an opportunity existed and was fast, then it would be used by speedcubers. But there is a way to solve parities using appropriate algs. What do you mean by "I was able to avoid it totally by using a procedure"?

I mean I never get OLL Parity. I just position the yellow pairs in certain position and it helps me in not getting any OLL Parity. I solved it almost 15 times and never got OLL Parity

 

[SpartanSailor]

I mean I never get OLL Parity. I just position the yellow pairs in certain position and it helps me in not getting any OLL Parity. I solved it almost 15 times and never got OLL Parity

Couple questions:
How/Where do you position the yellow pairs while using your procedure? And how do you know when to do so, such that you avoid parity?

I would think that doing so during the “wrong” solve would create the parity that your procedure seems to solve. Are you just doing modified PLL/OLL that corrects the parity at the same time as solving the OLL? I know of a few OLLs that can be applied this way... they have the effect of being essentially a single OLL alg rather than OLL + parity.
Curious minds want to know!

 

[SpartanSailor]

Yeah, I think you completely nailed the issue I've been having. I've also had some fairly fast solves with it including a full step 17.1, which is really fast for me.

With the green GES and tweaking the tensions (roughly 2-3 threads exposed above the nut) I think I've finally managed to find a decent sweet spot for me.



I'd probably try yours but the other one works well enough for me and I have bigger issues with some OLLs. I'm sticking that one in the spreadsheet for later though.

I never could get the RUD algs for the N-Perms to flow well for me for some reason, despite probably a year and a half with those as my primary algs... not like I gave up easily. Now I use a less efficient RUL alg for one of 'em and just do J-Perm twice for the other o_O.

As much as I dislike the N-perm (almost as much as V-perm... perhaps more so), even I can execute it faster than doing J-perm twice...

 

[CLL Smooth]

As I know there is no way to avoid parities on 4x4 (they can occur in about 50% of solves). BTW, if such an opportunity existed and was fast, then it would be used by speedcubers. But there is a way to solve parities using appropriate algs. What do you mean by "I was able to avoid it totally by using a procedure"?

Parity avoidance is actually a thing but not many people use it. As I think I understand it, you have to be able to do blind memo really fast and then count the number of quarter turns you make during centers. Maybe one of the blinders here understands it better.

 

[openseas]

As much as I dislike the N-perm (almost as much as V-perm... perhaps more so), even I can execute it faster than doing J-perm twice...

V perm is almost as fast as A perm (+ similar recognition): R' U R' (y) U' R' F' R2 U' R' U R' F R F , key here is (y) rotation and U' can be done at the same time or d'

N perm : R U R' U (R U R' F' R U R' U' R' F R2 U' R') (=this is J perm) U2 R U' R' or insert + (rotate) J perm + undo-insert

 

[Sergey]

Parity avoidance is actually a thing but not many people use it. As I think I understand it, you have to be able to do blind memo really fast and then count the number of quarter turns you make during centers. Maybe one of the blinders here understands it better.

I don't think that this is an avoidance in pure term. It is solving but at earlier stage.

 

[mark49152]

I don't think that this is an avoidance in pure term. It is solving but at earlier stage.

The point is that you avoid having to execute an OLL parity algorithm.

 

[Sergey]

The point is that you avoid having to execute an OLL parity algorithm.

Of course. The question, as I understood, was about avoiding parity itself so my answer was about it.

 

[mark49152]

Of course. The question, as I understood, was about avoiding parity itself so my answer was about it.

At what point does OLL parity start to exist? Can you take a scrambled cube and tell me whether or not it has OLL parity already? And can you do that without knowing whether I will take an odd or even number of quarter slice turns to solve my centres?

 

[phreaker]

Gan 354M: Are others finding this cube slows down as it breaks in?

I currently use yellow nuts at flush tensions, and Angstrom lubes in it.

 

[SpartanSailor]

Just a quick “brag”... I got a 2:19 with 5x5! That’s my first sub-2:20 and only twice else have i had anything under 2:30 (both in the days just prior to the 2:19). I was pretty excited about that one.

 

[Sergey]

My first 7x7x7. Just received. Not tried yet.

 

[pglewis]

Gan 354M: Are others finding this cube slows down as it breaks in?

I currently use yellow nuts at flush tensions, and Angstrom lubes in it.

The 354 is still new for me but as a general rule I only use light silicone lube (Lubicle Speedy has been my go-to) and DNM in my 3x3s. I like low effort turning and it seems like any time I've used anything heavier I've regretted it. Lower viscosity silicone lubes will dry out faster and may require more frequent reapplication. Seems like it does coat the pieces still and "reactivates" with a couple drops of DNM. Dry and crisp is perfectly fine for me as long as it's fairly fast and controllable still.

You might also swap out for the green GES and see if that suits you more.