--- 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 <*> 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/
