# A Collection of Algorithms

Discussion in 'General Speedcubing Discussion' started by pjk, Mar 22, 2007.

1. ### SajwoMember

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What's the algorithms for 4x4 OLL parity to
- two edges opposite
- two edges side by side
- two corners opposite
- two corners side by side?

sorry for my english.

19
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Oct 14, 2011
Based on the method you use, I think its possible to have either only edge parity or only corner parity. You can switch corner parity to edge parity using the t and n perms.

For corners -
Adjacent swap - z' Rw2 x U2 R' U2 x' U2 R' U2 R U2 L' x U2 Rw2 U2 Rw2 U2 Rw2 x' U2 Rw2 z U
Diagonal swap - Rw2 R' U2 R' U2 R U2 Rw2 x' U2 Rw2 U2 Rw2 U2 L' x U2 R U2 R' U2 L Rw2

For Edges -
Adjacent swap - R' U R U r2 U2 r2 Uw2 r2 Uw2 U R' U' R
Opposite swap - r2 U2 r2 Uw2 r2 u2

3. ### JayceeMember

Jul 17, 2011
Crestwood, Illinois
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@ QQ : T-Perm's optimal HTM length is 11, not 14.

I might start using this F-Perm you posted :O

R2 U R2' U' R2 U2 R2' U' F2 U2' R2 U' R2' U' F2 (U2)

4. ### KirjavaColourful

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snkenjoi
2-F-move optimal Tperm is 14.

5. ### JayceeMember

Jul 17, 2011
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Ah, thanks. I wasn't sure if I should post even though I thought I was correct because, well, I'm a nub xP

6. ### KirjavaColourful

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snkenjoi
r' F2 r F' r U r2 F2 r

7. ### RpottsMember

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I prefer (y2) R' U2 R B' R B R2' U2 R

executed something like

R' U2 l U' R U (R' l') U2 R

just realized that it's the same alg.

It solves this OLLCP - diagonal good fish

[cube]alg=R' U2 R2 B' R' B R' U2 R[/cube]

same amount of moves as the common F R U' R' U' R U R' F' OLL, but I can't do it near as fast.

Last edited: Dec 11, 2011
8. ### oll+phase+syncMember

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Oct 1, 2010
Do you use the invers as CLL

R2U'R2 uR2 y R2UR2u'R2 = just 10-move-T ( 5 faces I think)

9. ### RpottsMember

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Yea it looks like he's counting the AUF that alg requires, optimal is 10 not counting AUF, but from the common angle with both blocks solved optimal is 11.

10. ### qqwrefMember

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Indeed. And if it wasn't clear, my optimal HTM/QTM counts were all disregarding any AUF turns.

11. ### KirjavaColourful

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snkenjoi
R2 U2 r' F' r U2 R' U R'

12. ### CubenoviceForever Slow

F2 U D R2 U D B2 D2 my favorite HTA alg

13. ### StachuK1992statue

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Was that intended for multislotting or LL? :S

14. ### AthefreMember

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Well, U'L'URUM' would be better if it was multislotting.

15. ### KirjavaColourful

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that would be a terrible multislotting alg

16. ### bobthegiraffemonkeyMember

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Didn't find these in the wiki, probably good for bigcubes, I'll switch to one of them. May also be other slight variations which are good.
R U R' F' R U R' U R U2' R' F R U' R2' U' R U' R' U2 R
R' U2 R U R' U R2 U R' F' R U2' R' U' R U' R' F R U' R'

Edit:
F R U' R2' U' R U' R' U2 R2 U R' F' R U R' U R U2' R'
F R U' R2' U' R U' R' U2 R2 U R' F' U' R' U' R U' R' U2 R

Last edited: Jan 3, 2012
17. ### CUB3R01Member

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I'm in love with the second alg! Thanks for sharing!

18. ### KirjavaColourful

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snkenjoi
U r' U' B' U r U' r' B r

19. ### IanTheCuberMember

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