... Hey, there is another objective way to measure it. Percentage of 4 turn crosses as a function of number of scramble moves. - - - - - - - - - - - - "He who...
34640
d_funny007
Mar 31, 2007 6:03 pm
Intuitively this must be the case, and I think it's a assertion that everybody here is willing to believe. But this is much easier than proving the other...
34641
Lars Petrus
gorimek
Mar 31, 2007 6:03 pm
... As far as I know, all those brands are equally good. Just get one. They're cheap. - - - - - - - - - - - - There are two types of people in this world......
34642
Stephen Shores
stshores24
Mar 31, 2007 6:37 pm
... Ah. I didn't know that. I'll keep that in mind. Thanks. Stephen http://www.stephenshores.org...
34643
Arnaud van Galen
arnaudvangalen
Mar 31, 2007 6:39 pm
"Intuitively this must be the case" Well maybe, but if you spend a little time googling for god's algorithm, optimal solves and "cube explorer" you will find...
34644
Arnaud van Galen
arnaudvangalen
Mar 31, 2007 6:41 pm
An answer it is, but not a very constructive one. ... From: Stefan Pochmann To: speedsolvingrubikscube@yahoogroups.com Sent: Saturday, March 31, 2007 7:48 PM ...
34645
Stephen Shores
stshores24
Mar 31, 2007 6:43 pm
... Thanks Mike. I'll see if I can find that. Hopefully the WD-40 hasn't done any permanent damage. :P Stephen http://www.stephenshores.org...
34646
d_funny007
Mar 31, 2007 6:44 pm
... algorithm, optimal solves and "cube explorer" you will find that every position that has ever been tested can be reached in 20 moves (or less) so far. Less...
34647
Stefan Pochmann
stefan_pochmann
Mar 31, 2007 6:46 pm
... that ... As far as I know, the known lower and upper bounds for length of the longest optimal solution are 20 and 27 HTM, respectively. I might be off by...
34648
Stefan Pochmann
stefan_pochmann
Mar 31, 2007 6:58 pm
On the contrary, I think it was very constructive. First I pointed out that you intended to do some stuff, but you failed to say how you're going to reach a...
34649
Stefan Pochmann
stefan_pochmann
Mar 31, 2007 7:02 pm
... Fourth, not third. Where's the edit button here? Cheers! Stefan...
34650
Stefan Pochmann
stefan_pochmann
Mar 31, 2007 7:47 pm
... R (FU'R'FRF'U'RUR'F'U) R (FU'R'FRF'U'RUR'F'U) R2 Cheers! Stefan...
34651
Stefan Pochmann
stefan_pochmann
Mar 31, 2007 9:03 pm
Aha, it lives again! Next question: I saw the 5x5 average record was broken with... an average-of-10. Used to be average-of-5. When did it change? And yes, I...
34652
Gilles Roux
gogozergus
Mar 31, 2007 9:26 pm
... Really? Do our scrambles preserve pairs? I just tried a series of 25-move scrambles generated by JNetCube applied to solved cubes. Number of corner/edge...
34653
Frank Morris
ephem825
Mar 31, 2007 9:30 pm
I believe Ron changed it early last week. It hasn't been that way for too long. Stefan Pochmann <pochmann@...> wrote: Aha, it lives again! Next question: I...
34654
Ron van Bruchem
ilovemycube
Mar 31, 2007 10:02 pm
Hi Stefan, Yes, I changed it to average of 10 this week. I was cleaning up the database. Removed several impopular categories. Now I have all categories in...
34655
thomkirjava
Mar 31, 2007 10:16 pm
... solvable ... Remember the UK Open where a solved cube was laid before me to solve? :)...
34656
cmhardw
Mar 31, 2007 10:53 pm
25 turns and it generates the solved state: R' L2 U2 D2 R2 L2 D2 U2 R' F' B R' L U' D F' B U D' R L' F B' U D' This could be generated by a scrambler though it...
34657
Stefan Pochmann
stefan_pochmann
Mar 31, 2007 11:06 pm
... a ... intent. No that was just because I thought 1+12+1+12+1 = 25. My mistake, no intention. Should've used Thom's 10 move identity instead and do for ...
34658
Stefan Pochmann
stefan_pochmann
Mar 31, 2007 11:10 pm
... Ah, ok. Your first nine moves already are an identity alg: R' L2 U2 D2 R2 L2 D2 U2 R' Probably made from (R2 L2 D2 U2)*2 by breaking a double turn, right? ...
34659
Stefan Pochmann
stefan_pochmann
Mar 31, 2007 11:16 pm
... 25 ... Oh and if you didn't know it yet, this is a page you will like if you're interested in this stuff: http://cubezzz.homelinux.org/drupal/ For example...
34661
Ryan Heise
r_h_e_i_s_e
Apr 1, 2007 12:42 am
... Yes, but if you try a sequence of 25 "random" moves, you may get numbers more like the ones I got. The reason you're not getting those numbers is...
34662
Ryan Heise
r_h_e_i_s_e
Apr 1, 2007 12:53 am
... It would be interesting to measure in a number of different ways and see if the results correlate. For example, we should also measure the number of...
34663
cmhardw
Apr 1, 2007 1:14 am
Hey Stefan, Yes that is how I came up with my alg. I was trying to find an identity different from 12 moves, preferably longer, and thought of that "holes"...
34664
Ryan Heise
r_h_e_i_s_e
Apr 1, 2007 1:16 am
... Yes, but there still may exist a subset of scrambles that are hard for all. We do know something about how humans operate, and I think we can define an...
34665
Ryan Heise
r_h_e_i_s_e
Apr 1, 2007 1:34 am
... Another idea... Are there any smart ideas for how to produce a list of all possible 25-move solutions to the superflip? Then we could measure the...
34666
d_funny007
Apr 1, 2007 2:05 am
That's a fantastic idea! It seems to me to be a lot easier than working with any other state since it's the only non-trivial "center element" of the group. ......
34667
d_funny007
Apr 1, 2007 2:27 am
... (U R2 F' R D' L B' R U' R U' D F' U F' U' D' B L' F' B' D' L') The above is a generator for the superflip of 23 HTM, simply conjugate it with any single...
34668
Ryan Heise
r_h_e_i_s_e
Apr 1, 2007 4:03 am
... Well actually, we could apply the same idea for the solved position. Can we create a list of all 25-move sequences that amount to the identity operation? ...
34669
Ryan Heise
r_h_e_i_s_e
Apr 1, 2007 4:16 am
... Sorry to answer my own question, but I guess this list would be in the billions, and so listing them may not be a good idea :-) -- Ryan Heise ...
