A Collection of Algorithms

[ProStar]

Clearing out some junk from my hard drive, saw I had a VOD of one of Kevin Hays's livestreams saved, skimmed through it, and I saw him using this weird Ja perm (for 333):
(l R) u' R' u (l R) y' R' U R' U' R2

(It is on Algdb, but with only two votes.)

Ew.

 

[Deleted member 36445]

OLL 37

(y) F' r U r' U' r' F r

I found this alg by hand. nice fingertricks flow

 

[mencarikebenaran]

The best way to do Gd perm :

Jb perm + H perm

 

[EvanTheCuber]

Hi Guys, I was doing some PLL algorithms with my left hand and for one of them, it went into a different PLL algorithm. Can you guys tell me if this is an already known algorithm? Thanks.

The algorithm I did is

L U2 L' U2 L F' L' U' L U L F L2 U

 

[fun at the joy]

Hi Guys, I was doing some PLL algorithms with my left hand and for one of them, it went into a different PLL algorithm. Can you guys tell me if this is an already known algorithm? Thanks.

The algorithm I did is

L U2 L' U2 L F' L' U' L U L F L2 U

It's an Ra-Perm alg.
The alg is just the left-handed version of the standard Rb-Perm.

 

[brododragon]

That's an Ra perm. It's the second most voted alg on algdb.net.

 

[ProStar]

If you do the lefty version of an alg that has two variants(like A perm has Aa and Ab), then you'll solve the other variant(so if you do Aa lefty you solve Ab, where if you do T lefty, it's just T cause T has one variant). Since it's a lefty Rb, what you did was Ra

 

[EvanTheCuber]

I didn't know that PLL algorithm Yet so... I might use it. Thanks though

 

[༼(∩ ͡°╭͜ʖ╮͡ ͡°)༽⊃]

Algorithms
I only know these two algorithms (R,U,R',U') & (L', U',L,U).
P.S. I'm a baby Cuber.

 

[ProStar]

Best alg for this F2L case from this specific angle?

 

[Brest]

Best alg for this F2L case from this specific angle?

R' U R U R' U R U' R' U' R

 

[mencarikebenaran]

alg.cubing.net

alg.cubing.net

 

[ProStar]

alg.cubing.net

alg.cubing.net

I'm using that. Right now I have to do F moves and am always annoyed by that case

 

[xyzzy]

Pure opposite flip (UL and UR):
R u R U R' (u' U') R2 U2 R U' R' U' R

About as fast as M' U2 M U [R' F' R, S] for me, and a lot faster than the MU ones.

I still use the RUu alg for OH and 2H, but I switched to an RrU alg for big cubes… which still kinda sucked, so I went looking for an RUF alg. This one seems nice (and it didn't even take long to find):
R U' R' F U R2 U' R' F' R' U' R U R U R2'

Regripless, starting and ending with thumb on bottom. The F' is kinda unreliable, though. (All the other 16-move RUF algs require either regrips or even more unreliable fingertricks.)

 

[paul.edmondson.magician]

I still use the RUu alg for OH and 2H, but I switched to an RrU alg for big cubes… which still kinda sucked, so I went looking for an RUF alg. This one seems nice (and it didn't even take long to find):
R U' R' F U R2 U' R' F' R' U' R U R U R2'

Regripless, starting and ending with thumb on bottom. The F' is kinda unreliable, though. (All the other 16-move RUF algs require either regrips or even more unreliable fingertricks.)

Love this algorithm but what is the user in a standard 3x3 solve please?

Sent from my CLT-L09 using Tapatalk

 

[xyzzy]

Love this algorithm but what is the user in a standard 3x3 solve please?

It's an easy-to-recognise 1LLL case, but beyond that, not much use.

Sent from my laptop using Firefox

 

[xyzzy]

P perms ("K perm" on the wiki):
bar on back, square on left: R U' L U2 R' U 3r' r2 U2 r2 u2 2R2 u2 (x)
bar on back, square on right: L' U R' U2 L U' R (l' r') U2 r2 u2 2R2 u2 (x') or maybe bar on front, square on left: R' U L' U2 R U' 3r r2 U2 r2 u2 2R2 u2 (x')

The first one is around half a second faster than the standard Jb + opp for me. Haven't seriously drilled the second one yet, but it looks promising. There are bad regrips in both of these algs, but these are so much shorter. Is that enough to compensate for the regrips? Sure is for me, maybe not for you, but give them a shot anyway.

Algs adapted from the wiki page, originally credited to Clément Gallet.
---
Of course you can also solve the B/D perms ("P perm" on the wiki) with variants of the above:

Da: R' U L' U2 R U' 3r B r2 U2 r2 u2 2R2 u2 (x')
Db: R U' L U2 R' U 3r' F r2 U2 r2 u2 2R2 u2 (x)
Ba: (r l) U2 r2 u2 2R2 u2 F 3r U' R U2 L' U R'
Bb: (r' l') U2 r2 u2 2R2 u2 B 3r' U R' U2 L U' R

Optimal for these is apparently 14 moves when restricted to u2/r2/f2, but the 14-move alg doesn't look great and is also longer in QTM. (Also, bless SiGN notation; Singmaster notation is so annoying to read.)
---
Some years ago I posted this alg for X perm (it's on the wiki too):
Uw2 Rw2 U2 Rw2 R' D R' U' R (U2 D') R' D' R U2 R' (U' D) Rw2 Uw2

I no longer use this alg. The (U' D) Rw2 is too risky, and trying to keep the rarest PLL case in muscle memory when I don't even practise 444 that much seems silly. The alg I now use for this case is the one I posted on the previous page of this thread, which is also usable on 666.
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(2020-04-30)
Another regripless X perm, this time from combining the above ideas, albeit with crappy F moves all over:
r2 U2 r2 u2 2R2 u' F' U F U' F R2 F' U F' U' F U R2 u' (21f, 29q)
You can mirror this and insert a rotation to make it RUFy, but then you'd get F2s, which might be even worse.

 

[brododragon]

How's this edge insert alg? It preserves EO. r U r' U' r' F r F'

 

[Deleted member 51471]

How's this edge insert alg? It preserves EO. r U r' U' r' F r F'

You'll rarely need this, keyhole is better when you have another free slot.

 

[brododragon]

You'll rarely need this, keyhole is better when you have another free slot.

But for ZZ and Petrus LS it can be useful.