Pyraminx Crystal

[Stefan]

4 move pure edge cycle... i'm an idiot.

That's what I thought.

 

[Kenneth]

I don't have a crystal but can't you transfer algs from Pyraminx to it?

A Pyraminx 8 turn edge flip is: R' L R L' B L' B' L ... two times the 4 turn edge cycle.

If you are holding it so there is a U-face and a F-face, then the tips becomes R, L, D and B = the notation I use for Pyraminx.

 

[Stefan]

Nope......

 

[joey]

Btw, when I said pure 3-cycle, I meant a U-perm.
I have 2 16 movers.

 

[Kenneth]

Well, I took a chance

 

[Stefan]

Please define "U-perm".

 

[joey]

Umm. Edge 3-cycle that doesn't affect orientation. Edges on LL, 3 adjacent or two adjacent one opposite.

 

[Stefan]

You do realize I should ask what you mean with "affect orientation", don't you? But alright, I'll make an exception, cut you some slack and assume I know what you mean. But I still hate people's messed up understanding of "orientation".

 

[mrCage]

i have a pur 3 cycle edges, but it's pretty long 19 moves to be exact.

--EDIT---
4 move pure edge cycle... i'm an idiot.

Final hint for 2-flip and edge 3-cycle

3-cycle: replace a lower edge of the U layer (as opposite to face) in 1 turn only, then make commutator based on that

2-flip: similar hint= flip one lower edge of U layer and make a commutator.

More direct hints are hard to find

- Per

 

[joey]

You do realize I should ask what you mean with "affect orientation", don't you? But alright, I'll make an exception, cut you some slack and assume I know what you mean. But I still hate people's messed up understanding of "orientation".

Thanks Stefan. If I could define what I meant by "orientation" I would do, but since I don't know a good way to express it, I'll just say orientation!

Keeping the U face colour on the top and cycling 3-edge? Maybe?

 

[Stefan]

I posted some videos:
http://www.speedsolving.com/forum/showthread.php?t=5508

 

[Stefan]

Got simple U-perms for Joey in 10 moves, btw. Both versions, adjacent and spread edges.

 

[mrCage]

Hi

I have 2 ways to flip 2 edges in 8 turns. One is a commutator built on a 3-move flip. The other is 2 4-move 3-cycles :rolleyes: Both of them use 2/5 turns only

- Per

(edit)

I have 3 ways actually, the last is an obvious variation of the first one ...

(/edit)

 

[pjk]

Per, you should post your algs or make a video.

Thanks Stefan for the vids, that was helpful.

 

[Swordsman Kirby]

Hi

I have 2 ways to flip 2 edges in 8 turns. One is a commutator built on a 3-move flip. The other is 2 4-move 3-cycles :rolleyes: Both of them use 2/5 turns only

- Per

(edit)

I have 3 ways actually, the last is an obvious variation of the first one ...

(/edit)

So I guess you don't need mine anymore?

EDIT: Heh, found the second one you were talking about.

 

[mrCage]

Hi

All those corner cycle/twist stuff is ultimatelt useless as far as speedsolving os concerned. I'm truly convinced that corner first is the way to go. And then sort out the edges with easy cycles and setups. I estimate that 2-3 minutes solves will be easily attainable with a little more practice, and lubing ... :rolleyes:

-Per

 

[Stefan]

Do you mean pure corners first? Seems like waste. I always solve the corners of one layer and then insert the edges right away (just those up to five which are strictly between the corners).

 

[mrCage]

Hi

Yes i mean pure corners first. In most cases up to half the edges are solvable in 4/5 turn 3-cycles. Of course, as far as fewest moves is concerned that approach may still be a waste as blocks can be utilized.

Btw, Stefan i have 7/9 face turn solutions for the 2 U-perm edge cycles. I based both of them off a 5-turn variation of the basic 4-turn 3-cycle. Then very easy setup moves. You will find them easily i guess

-Per

 

[TimMc]

Finally figured it out

Skewb and Skewb Ultimate to go now

tis always satisfying to struggle with puzzles and finally solve them. Now to speedsolve :-D

Tim.

 

[mrCage]

Hi

I will soon post my PLL edge algs once i have made a decent diagram to show my notation. I have found that vids are simply too confusing for the pyra crystal. I will only show the 2 PLL and not any of the other algs. Really those others are nothing difficult at all. The corner algs of stefan are probably the most difficult anyone would possibly "need":rolleyes:

Corners first is really easy and algs for that (ignoring edges) can be found elsewhere - with the possible exception of corner twists. Many normal cube algs for them do not apply, as the crystal simply does not "wrap around" in the same manner. The approach that easily works is using monotwists and U layer positioning. This way we can achieve all the possible corner orientations easily. For those who know it this would work the same way for corner orientation as the singmaster beginner solution.

- Per