Random Cubing Discussion

[abctoshiro]

I use it sometimes for speed, and I average 30s with it (I average 19-23 with Roux). L5C is sometimes nasty. Also, I need to look on Heise's page for some inspiration for ideas for XELS-L5C shortcuts.

 

[StachuK1992]

How many algs is L5C, 486? I'm guessing that's too high.

 

[abctoshiro]

L5C has a very high alg count that's why I divided it into two parts.

EDIT: Page updated. Check the page at the link at my sig.

 

[StachuK1992]

L5C has a very high alg count that's why I divided it into two parts.

I'm simply wondering out of curiosity.
Here's my logic behind my guess:

DFR can go in any of 3 places (URF, RFU, FUR) because you can always AUF to make one corner be in the correct relative place.
the piece at UFR or any of those positions can then go to any of 9 positions (3*3)
so 27 so far
Then, that can go to any of 6 positions
so 162.

Then really, that can only go in one position, so my upper limit guess now is 162.


Reading over that, it's not really clear but I'm not sure how to better explain it.

 

[abctoshiro]

I'm not sure how to calculate L5C alg-count but I'm just guessing a very high number. Most algs can't be mirrored (I also guess).
But I'm trying to understand your explanation.




[Uhm, in my page, I didn't indicate that UFR or RFU or FUR is just a reference to permutation, not orientation.]

 

[Athefre]

A little interesting:

http://games.groups.yahoo.com/group/speedsolvingrubikscube/message/42605

 

[qqwref]

Counting the algs for L5C (in one look, allowing AUF before and after, counting mirrored positions as separate) I get:
- If DFR is in place then the possible LL permutations are solved (8+8+8 orientations), 3-cycle (2 permutations * 27+27+27 orientations), or 2-2-cycle (1 permutation * 15+15+15 orientations).
- If DFR is not in place, assume the piece in DFR gets permuted to UFR (but then no more AUF is possible), so the possible permutations are 3-cycle (3 permutations * 27+27+27 orientations), 2-2-cycle (3 permutations * 27+27+27 orientations), or 5-cycle (6 permutations * 27+27+27 orientations).

So I count 1203 cases. I think this is a bit much to memorize. It would be very very roughly about 300 if you can invert/mirror algs on the fly.

 

[oll+phase+sync]

I'm technically sub 12, I guess. I don't use any basic multislotting but I do try to affect edges during F2L (not just the last pair) to make OLL easier.

If I understand corretly, you do not "die hard" force orientd edges during F2L. Do you have an estimation/percentage howoften you get 4 oriented LL edges.

 

[qqwref]

How could I possibly estimate that? I guess I could do a lot of solves and record it but that would take a while.

 

[abctoshiro]

A little interesting:

http://games.groups.yahoo.com/group/speedsolvingrubikscube/message/42605

Now that was similar to mine. Very similar. Except that I do EO first before F2L.

Can someone sub-20 or sub-15 do an Ao5 of my "method"? I wanna see how fast solvers do it.

Sorry if I'm a bit annoying.

 

[Tim Reynolds]

Random 6-twist: (R U D' R' U' D)*3

 

[joey]

Hey tim, how's your official 12.49 average feel?

 

[Tim Reynolds]

A hell of a lot better than I'm getting these days.

 

[qqwref]

Can someone sub-20 or sub-15 do an Ao5 of my "method"? I wanna see how fast solvers do it.

Sure. I did a whole bunch of solves, still not 100% used to it though. I like how intuitive it is.

best avg12: 24.22 (σ = 2.54)
25.13, 30.10, (15.95), 22.90, 23.64, 21.18, (DNF), 22.70, 26.70, 25.38, 22.14, 22.34

 

[Kirjava]

 

[JonnyWhoopes]

Sexymove LSE six-flip.

R' D' R D (r U r' U')3 (R U R' U')3 D' R' D R

I dunno. I like it. SM = fun.

 

[oll+phase+sync]

Sexymove LSE six-flip.

R' D' R D (r U r' U')3 (R U R' U')3 D' R' D R

I dunno. I like it. SM = fun.

Not so special LSE only orient 6 edges (don'T know if they are already know)

R' F R U M U' R' F' r

R' U r U M U' r' U' r

I don't use them personally because I feel there is alway somthing better on could do instead.
EDIT I mean M/M' and then just orient 4 Edges but if UR/UL slot are free, these algs may be handy to orient and place UR/UL in one go.

 

[qqwref]

The mirror of your second one (R U' r' U' M' U r U r') is pretty good. Kirjava told me about it a while ago.

 

[oll+phase+sync]

How could I possibly estimate that? I guess I could do a lot of solves and record it but that would take a while.

Sorry to insist, I don't want you to do long time statistics - not even short time. I'm more interessted in your personal feelings like:

Do you still run into "no edge oriented" OLL case, without knowing before, or other unpleasant OLLs ?

Do you get 4 oriented edges so often, that you would consider using "enhancements" to get further profit from it?

And if you don't mind further inquery, regarding ZZF2L-XELS-L5C:

Did you consider to do it in the folowing order F2L_minus_one_Slot + EO + XELS + L5C ? (more or less on the heise site)

During the first part of L5C do you always solve DFR corner?

[abc]toshiro, please answer ,too.

 

[oll+phase+sync]

The mirror of your second one (R U' r U' M' U r U r') is pretty good. Kirjava told me about it a while ago.

the prime mix in the citing drove me nuts, but finally your right r'UrU M'U'r'U'R is much better. copy.