The "Request an Alg" Thread

[PapaSmurf]

Hello!

I’m looking for some easy 2x2 T-Perms... thanks!

R' F R F' R U2 R' U R U2 R' is the best imo.

 

[TetraCubes]

So I have this case on the 2x4 where all the edges need to be rotated clockwise, any algs?

 

[NitroCuber7]

My e-perm dosen’t work... Anyone have a good, WORKING E-Perm?

 

[PapaSmurf]

https://alg.cubing.net/?alg=x-_R_U-_R-_D_R_U_R-_D-_R_U_R-_D_R_U-_R-_D-_x&setup=z2

The alg is: x' R U' R' D R U R' D' R U R' D R U' R' D' x
It's fast. I (and many people) can sub 1 it.

 

[xd-Dadamaster]

https://alg.cubing.net/?alg=x-_R_U-_R-_D_R_U_R-_D-_R_U_R-_D_R_U-_R-_D-_x&setup=z2

The alg is: x' R U' R' D R U R' D' R U R' D R U' R' D' x
It's fast. I (and many people) can sub 1 it.

I use it as well and i love it

 

[cuber314159]

Is there a better algorithm for this than just flip and inner parity?

 

[xyzzy]

Is there a better algorithm for this than just flip and inner parity?

4-cycle inner parity, then slice-flip-slice:

3r U2 3R2 U2 3r' U2 3R U2 3r' U2 3R2 U2 3r
3-4l flip 3-4l'

(I was going to say "no", but then I thought about it for a while and came up with this. 4-cycle inner parity is probably the fastest inner parity alg, but if you prefer, you can also use any other inner parity alg instead.)

 

[cuber314159]

4-cycle inner parity, then slice-flip-slice:

3r U2 3R2 U2 3r' U2 3R U2 3r' U2 3R2 U2 3r
3-4l flip 3-4l'

(I was going to say "no", but then I thought about it for a while and came up with this. 4-cycle inner parity is probably the fastest inner parity alg, but if you prefer, you can also use any other inner parity alg instead.)

Thanks, but just to clarify, is that meant to lead to outer parity and if so would it be faster to do inner slice flip slice at the end to get the L2E case.

 

[xyzzy]

Thanks, but just to clarify, is that meant to lead to outer parity and if so would it be faster to do inner slice flip slice at the end to get the L2E case.

It's a full solution of that L2E case. (The thing has a link to alg.cubing.net too.)

 

[cuber314159]

It's a full solution of that L2E case. (The thing has a link to alg.cubing.net too.)

oh right, I did not realise the difference between 3R and 3r, now I know, thanks and I think I will use the algorithm with all lower case moves as my parity algorithm anyway.

 

[PetrusQuber]

Hi I need help with some awkward last layer algorithms. I use Petrus by the way, so my edges are oriented already, giving me three look. Can anybody suggest some good algorithms for the Z Perm and Headlights/Superman case? I use m2 u' m2 u' m' u2 m2 u2 m' u2 and r2 d r' u2 r d' r' u2 r2, respectively. I hate the d moves for the second one, and the way that the m moves work so that you can't do a u move in the first one. (I do ms with my 3rd right finger). Please help.

 

[Zeke Mackay]

For the Z perm, you can use the alg M' U' M2 U' M2 U' M' U2 M2 or R' U' R2 U R U R' U' R U R U' R U' R'.
For headlights, you can do R U R' U R U2 R2 U' R U' R' U2 R

 

[Krerey]

Those algs are good algs. I would recommend doing m moves with your ring finger instead and make sure that you are doing the ring finger push D’ (is you don’t already) for the headlights case.

 

[PetrusQuber]

Those algs are good algs. I would recommend doing m moves with your ring finger instead and make sure that you are doing the ring finger push D’ (is you don’t already) for the headlights case.

Ok, but the thing is, there were actually two algs for the Z Perm and the second one was m2 u m2 u m' u2, etc. The first two U s in the alg swap the four corners differently, depending if you use u' or just u, but like I said, doing a U after m2 was killing me so I dropped it. And now I have do some y s for Z Perm if the corners are going to be swapped wrong. I hope that made sense.

I ll see if I can improve on using my headlights for a little longer.

Those algs are good algs. I would recommend doing m moves with your ring finger instead and make sure that you are doing the ring finger push D’ (is you don’t already) for the headlights case.

Ok, I'll see if I can switch to ring finger, but I need some questions answered. Do you do your m2 s with the ring finger then the middle finger following behind it?
Also, how do you do a m' move efficiently? I have to use my right hand to perform a wide r' then a r for an m' move.

For the Z perm, you can use the alg M' U' M2 U' M2 U' M' U2 M2 or R' U' R2 U R U R' U' R U R U' R U' R'.

I only just realised those were the inverted Z Perms, lol. Thx.

 

[Krerey]

Ok, I'll see if I can switch to ring finger, but I need some questions answered. Do you do your m2 s with the ring finger then the middle finger following behind it?
Also, how do you do a m' move efficiently? I have to use my right hand to perform a wide r' then a r for an m' move.

Yes, I do my M2’s with my ring finger followed by middle.
Also, keeping in mind that M moves follow L, so I think you have M and M’ switched. With M, people do a ring finger push at the back.

 

[PetrusQuber]

Yes, I do my M2’s with my ring finger followed by middle.
Also, keeping in mind that M moves follow L, so I think you have M and M’ switched. With M, people do a ring finger push at the back.

Ok thx, but what do you mean when you say M moves follow L and I have M and M' switched?

Ok nvm, I see what you mean, Kerry_Creech
But lol, the algs still worked.

 

[Krerey]

Ok thx, but what do you mean when you say M moves follow L and I have M and M' switched?

Rw’ R does an M move.

 

[PetrusQuber]

Yes, I do my M2’s with my ring finger followed by middle.
Also, keeping in mind that M moves follow L, so I think you have M and M’ switched. With M, people do a ring finger push at the back.

My finger isn't strong enough to push the cubie (BD one I think) up efficiently, and I meet a lot of resistance

 

[Krerey]

My finger isn't strong enough to push the cubie (BD one I think) up efficiently, and I meet a lot of resistance

Yeah, it’s a pretty hard fingertrick to master, but it is a very nice fingertrick to use, such as in MU U perms. I’d say practice it, it comes in handy.

 

[PetrusQuber]

Yeah, it’s a pretty hard fingertrick to master, but it is a very nice fingertrick to use, such as in MU U perms. I’d say practice it, it comes in handy.

Ok sure, can't wait to get my fingers sore...