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A new solution of the 3^4 MagicCube4D, solved in 467 twists, has been uploa=
ded to the "Files" section of this Yahoo group. This beats the existing re=
cord for the shortest such solution by 28 twists, if my calculations are co=
rrect.
Amusingly, about 2 twists before finishing this solution, my computer video=
output died and I had to spend about half an hour swapping out my video ca=
rd with an older one before I could go back to my last save and complete th=
e solution.
My brain kind of hurts, and it's way past my bedtime. I'm going to bed now=
.
--Matthew A. Young
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Sweet.
Looks like it is time to dust of my MagicCube4d and
try to resuscitate some long-unused neural pathways in
my brain. Whether I can or not, I will at least have
to try to get back the shortest solution :)
We used to have a standard starting file for the
shortest solution competition. We could use the
starting scrambled state of your new solution for
that. However, my vote would be to just allow a
random scrambled state if others were cool with that.
I never really agreed with the thought that a standard
starting state took any luck out of things anyway.
Thoughts?
I wonder if Melinda is still getting these emails?
The Hall of Fame still doesn't have Jay's new first of
solving the 2^4 on it, and isn't updated yet with
Matthew's solution either...
Roice
--- Matt Young
> A new solution of the 3^4 MagicCube4D, solved in 467
> twists, has been uploaded to the "Files" section of
> this Yahoo group. This beats the existing record
> for the shortest such solution by 28 twists, if my
> calculations are correct.
>
> Amusingly, about 2 twists before finishing this
> solution, my computer video output died and I had to
> spend about half an hour swapping out my video card
> with an older one before I could go back to my last
> save and complete the solution.
>
> My brain kind of hurts, and it's way past my
> bedtime. I'm going to bed now.
>
> --Matthew A. Young
>
_______________________________
Do you Yahoo!?
Win 1 of 4,000 free domain names from Yahoo! Enter now.
http://promotions.yahoo.com/goldrush
> We used to have a standard starting file for the
> shortest solution competition. We could use the
> starting scrambled state of your new solution for
> that. However, my vote would be to just allow a
> random scrambled state if others were cool with that.
> I never really agreed with the thought that a standard
> starting state took any luck out of things anyway.
> Thoughts?
I tend to agree that the starting point is not so important. I think
the order in which sections of the puzzle are solved probably has a
greater impact than the initial configuration, and I agree that
getting that right would be luck. In all my days of frequent 3^3
solving, I found that my speed varied over a narrow range and wasn't
heavily influenced by the starting configuration in most cases, though
once I got lucky and had all the corner pieces in the right place
after solving the top face....
--
Jay Berkenbilt
http://www.ql.org/q/
hello friends,
yes, i'm definitely here and have intended to get to this. i tried just
now but can't access the log file in order to link to it. i'll do that
soon. and a huge congratulations to matt!!! i may have said this before
but i never expected to see anyone beat roice's solution for years if
ever. you guys consistently surprise me.
i don't know how i feel about a standardized start configuration.
standardizing definitely makes it a fair start but allows people to
study other people's solutions in order to find any shortcut between any
pair of positions, which i expect everyone would agree would be unfair.
so there is definitely an advantage to a randomized start so that each
person is on their own but that allows people to generate lots and lots
of starting configurations until they find one that happens to give them
a head start. i'd love to hear everyone to chime in with their suggestions.
and on the subject of jay's 2^4 solution, i've been conflicted about
this because i'm fairly sure that it's been done before using other
programs (e.g. http://home.rochester.rr.com/jbxroads/4cube.html). what
do people think we should do? i'm thinking of adding it to the
hall-of-fame but with a note to this effect.
-melinda
Roice Nelson wrote:
>Sweet.
>
>Looks like it is time to dust of my MagicCube4d and
>try to resuscitate some long-unused neural pathways in
>my brain. Whether I can or not, I will at least have
>to try to get back the shortest solution :)
>
>We used to have a standard starting file for the
>shortest solution competition. We could use the
>starting scrambled state of your new solution for
>that. However, my vote would be to just allow a
>random scrambled state if others were cool with that.
>I never really agreed with the thought that a standard
>starting state took any luck out of things anyway.
>Thoughts?
>
>I wonder if Melinda is still getting these emails?
>The Hall of Fame still doesn't have Jay's new first of
>solving the 2^4 on it, and isn't updated yet with
>Matthew's solution either...
>
>Roice
>
>
>--- Matt Young
>
> > A new solution of the 3^4 MagicCube4D, solved in 467
> > twists, has been uploaded to the "Files" section of
> > this Yahoo group. This beats the existing record
> > for the shortest such solution by 28 twists, if my
> > calculations are correct.
> >
> > Amusingly, about 2 twists before finishing this
> > solution, my computer video output died and I had to
> > spend about half an hour swapping out my video card
> > with an older one before I could go back to my last
> > save and complete the solution.
> >
> > My brain kind of hurts, and it's way past my
> > bedtime. I'm going to bed now.
> >
> > --Matthew A. Young
> >
>
>
>
>
>_______________________________
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>Win 1 of 4,000 free domain names from Yahoo! Enter now.
>http://promotions.yahoo.com/goldrush
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>ADVERTISEMENT
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>
>
>
> and on the subject of jay's 2^4 solution, i've been conflicted
> about this because i'm fairly sure that it's been done before
> using other programs
> (e.g. http://home.rochester.rr.com/jbxroads/4cube.html). what do
> people think we should do? i'm thinking of adding it to the
> hall-of-fame but with a note to this effect.
For what it's worth, it's immaterial to me. I did it for fun and
practice, not to be on the hall of fame. Do whatever you think is
right. :-)
--Jay
Hey all! Sorry you couldn't access my log file, Melinda... I sent another
copy to the email address linked from the main site at superliminal.com, so
that's another place to check. Or, I can send you another copy if you like,
to the email address of your choosing. Just let me know.
I'd say randomized starts are fine, but shouldn't be required. I chose a
random start on this one, although I'd considered trying to start with
Roice's scramble state and work from there. I figured he'd probably done
his best to make his solution as efficient as possible though, and trim any
excess fat in terms of numbers of twists. I know I certainly did in trying
to beat his mark! I think a good chunk of my success, though, was in that
the sequence I'd come up with for swapping three 4-color corner pieces used
only 16 twists, rather than 18 as Roice's sequence requires.
Anyhow, I digress. I'd say either way is okay, whatever works for the
person attempting to break the record, since at this point, anything that
manages to set a new record has almost certainly been planned out to be as
economical as possible in terms of twists used to reach each position.
As far as Jay's solution, I'd say adding it to the page is fine, although
perhaps phrased so as to indicate that this is the first such solution *with
this software*, as opposed to first solution ever. Just my $0.02.
--Matt Young
Melinda Green wrote:
> hello friends,
>
> yes, i'm definitely here and have intended to get to this. i tried
> just now but can't access the log file in order to link to it. i'll
> do that soon. and a huge congratulations to matt!!! i may have said
> this before but i never expected to see anyone beat roice's solution
> for years if ever. you guys consistently surprise me.
>
> i don't know how i feel about a standardized start configuration.
> standardizing definitely makes it a fair start but allows people to
> study other people's solutions in order to find any shortcut between
> any pair of positions, which i expect everyone would agree would be
> unfair. so there is definitely an advantage to a randomized start so
> that each person is on their own but that allows people to generate
> lots and lots of starting configurations until they find one that
> happens to give them a head start. i'd love to hear everyone to chime
> in with their suggestions.
>
> and on the subject of jay's 2^4 solution, i've been conflicted about
> this because i'm fairly sure that it's been done before using other
> programs (e.g. http://home.rochester.rr.com/jbxroads/4cube.html). what
> do people think we should do? i'm thinking of adding it to the
> hall-of-fame but with a note to this effect.
>
> -melinda
>
> Roice Nelson wrote:
>
>> Sweet.
>>
>> Looks like it is time to dust of my MagicCube4d and
>> try to resuscitate some long-unused neural pathways in
>> my brain. Whether I can or not, I will at least have
>> to try to get back the shortest solution :)
>>
>> We used to have a standard starting file for the
>> shortest solution competition. We could use the
>> starting scrambled state of your new solution for
>> that. However, my vote would be to just allow a
>> random scrambled state if others were cool with that.
>> I never really agreed with the thought that a standard
>> starting state took any luck out of things anyway.
>> Thoughts?
>>
>> I wonder if Melinda is still getting these emails?
>> The Hall of Fame still doesn't have Jay's new first of
>> solving the 2^4 on it, and isn't updated yet with
>> Matthew's solution either...
>>
>> Roice
>>
>>
>> --- Matt Young
>>
>>> A new solution of the 3^4 MagicCube4D, solved in 467
>>> twists, has been uploaded to the "Files" section of
>>> this Yahoo group. This beats the existing record
>>> for the shortest such solution by 28 twists, if my
>>> calculations are correct.
>>>
>>> Amusingly, about 2 twists before finishing this
>>> solution, my computer video output died and I had to
>>> spend about half an hour swapping out my video card
>>> with an older one before I could go back to my last
>>> save and complete the solution.
>>>
>>> My brain kind of hurts, and it's way past my
>>> bedtime. I'm going to bed now.
>>>
>>> --Matthew A. Young
>>>
>>
>>
>>
>>
>> _______________________________
>> Do you Yahoo!?
>> Win 1 of 4,000 free domain names from Yahoo! Enter now.
>> http://promotions.yahoo.com/goldrush
>>
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>> ADVERTISEMENT
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