I once heard a good joke...not gunna repeat it...but anyways... I like your thinking Stefan, but I was aiming for a 1 algorithm solution to most cases in a 4LLL...the concept you described is actually quite wonderful...i would try it...but I'm lazy :p as you know...but if you are a beginner who wants something easy, but also wants to learn a more advanced solution I would suggest trying what I suggested, as what you suggested would take more moves on average...
Craig --- In [email protected], "Stefan Pochmann" <[EMAIL PROTECTED]> wrote: > > > That's not what I meant. I meant applying algs to the LL only. If you > use that alg you mentioned on LL only, it's obvious you cannot solve > the whole LL no matter how often you apply it. So if it works at all, > then you have to apply the alg to other layers than the LL. > > Also, Craig was talking about a 4-look LL and I'm after a 2-step > (better name than 2-look I think, but we mean the same) PLL. > > To be precise: find a smallest possible set of algs that change only > the U layer and which solve every PLL case with at most two alg > applications (from that set) together with any U-turns before, between > or after the algs. Currently the best I know is 5. > > Cheers! > Stefan > > > --- In [email protected], Gilles van den > Peereboom <[EMAIL PROTECTED]> wrote: > > > > Have you never heard that you can solve the LL with only 1 algorithm > ? > > Just use FURU'R'F' wisely and you will be able to solve it (you > might > > have to do it several times, and figure out how to combine several > > FURU'R'F' to affect only a few pieces. > > I can't remember the name of the french guy who found that. > > > > Have fun ! > > Gilles. > > > > > > 2006/1/9, Stefan Pochmann <[EMAIL PROTECTED]>: > > > --- In [email protected], "Craig Bouchard" > > > <[EMAIL PROTECTED]> wrote: > > > > > > > > I think if you want a > > > > 4LLL(every time) or less with skips...then you need to learn: 3 > for > > > > (as you call it) the cross on top, 4 for permuting corners...7 > for > > > > Orienting corners and 4 for Permuting Edges...so...3+4+7+4...18 > > > > algorithms for a guaranteed 4LLL... > > > > > > Be careful about the word "need" :-) > > > > > > Besides dropping the number for PCLL from 4 down to 2, I've taken > this > > > a bit further now. You can do guaranteed 2-step PLL with a set of > only > > > 5 algs. I'll use Jessica's names: > > > http://www.ws.binghamton.edu/fridrich/Mike/permute.html > > > > > > (J1) = Jessica's J > > > (J2) = L<->R mirror of (J1) > > > (R1) = Jessica's R > > > (R2) = L<->R mirror of (R1) > > > > > > You get all algs except H like this: > > > > > > U - (J1) y2 (J2) > > > A - (J1) y (J2) > > > Z - (J1) y' (R2) > > > H - ??? > > > E - (R1) y (J2) > > > T - (J1) U' (J2) > > > V - (J1) y (R1) U' > > > F - (J1) y U (R1) > > > R - (R1) > > > J - (J1) > > > Y - (J1) (J2) U > > > G1- (R1) (J2) U' d' > > > G2- (J1) (R2) U2 > > > G3- (J2) (R1) d2 > > > G4- (R2) (J1) U' d' > > > N - (J1) y2 (J1) > > > > > > So those four algs plus H guarantees 2-step PLL. Is this optimal? > I > > > wouldn't be surprised if it were possible with only 4 algs. > > > > > > Cheers! > > > Stefan > > > > > > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links > > > > > > > > > > > > > > > > > > > > > > > > > > > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/speedsolvingrubikscube/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
