Thread: "2-c parity(?) problem with 4^4"

I have a problem with the last 2 faces
http://groups.yahoo.com/group/4D_Cubing/photos/album/346940124/pic/list
reply please
(I got parental controls on time so I just type that, lolz)
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I updated the pictures. The red line is the wrong piece and the green line =
are the right pieces. And, can you make a log file showing the XY moves?

--- In 4D_Cubing@yahoogroups.com, Brandon Enright wrote:
>
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>=20
> On Wed, 21 Jul 2010 13:53:56 -0000
> "deustfrr" wrote:
>=20
> > I have a problem with the last 2 faces
> > http://groups.yahoo.com/group/4D_Cubing/photos/album/346940124/pic/list
> > reply please
> > (I got parental controls on time so I just type that, lolz)
> >=20
>=20
> deustfrr,
>=20
> Your images are quite hard (for me) to see the exact problem in context.
>=20
> However, for your "1-c piece situation" image, you have what appears to
> be a blue and an orange 1-c central piece swapped. If you were solving
> purely intuitively then you may have a bit of trouble solving this but
> if you have a 3-cycle for the 1-c pieces then just swap two
> indistinguishable pieces such as two blue in the 3-cycle along with the
> orange.
>=20
> For your "2-c piece parity 1b" and "2-c piece parity 1a" images, this
> isn't really a parity but they must be solved together.
>=20
> I recently discussed a semi-generic technique for doing this on almost
> any puzzle here:
> http://www.twistypuzzles.com/forum/viewtopic.php?f=3D8&t=3D7830&p=3D21942=
2#p219422
> The general idea is to 3-cycle your two flipped pieces along with some
> other (choice is arbitrary) piece such that one of the flipped pieces
> moves into the place of the other flipped piece (call this sequence X).
> Then flip the whole group over and put it back in place (call this Y),
> then undo X, then undo Y. This technique will work in any number of
> dimensions.
>=20
> Good luck,
>=20
> Brandon
>=20
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v2.0.15 (GNU/Linux)
>=20
> iEYEARECAAYFAkxHNRsACgkQqaGPzAsl94JmswCfaN11Ja6eh2Dw6+nAFcunco40
> X/MAn3VzbHkYtEJCNUGeCCM5MljsXnsG
> =3DV8uU
> -----END PGP SIGNATURE-----
>

--005045013e1be7a67b048bf29fd6
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

Well, we can't exactly solve it for you, but one of the big hints that
Brandon just gave is to try to "swap two indistinguishable pieces". When
you realize the presence of indistinguishable pieces, it suddenly no longer
becomes a parity issue, but just another case to work out with your
3-cycles. Still some work left for you to figure out exactly how to use th=
e
3 cycles to get what you want done, but I think you'll feel pretty good
about it when you do figure it out. Good luck!

Chris

2010/7/22 deustfrr

>
>
> I updated the pictures. The red line is the wrong piece and the green lin=
e
> are the right pieces. And, can you make a log file showing the XY moves?
>
>
> --- In 4D_Cubing@yahoogroups.com <4D_Cubing%40yahoogroups.com>, Brandon
> Enright wrote:
> >
> > -----BEGIN PGP SIGNED MESSAGE-----
> > Hash: SHA1
> >
> > On Wed, 21 Jul 2010 13:53:56 -0000
> > "deustfrr" wrote:
> >
> > > I have a problem with the last 2 faces
> > >
> http://groups.yahoo.com/group/4D_Cubing/photos/album/346940124/pic/list
> > > reply please
> > > (I got parental controls on time so I just type that, lolz)
> > >
> >
> > deustfrr,
> >
> > Your images are quite hard (for me) to see the exact problem in context=
.
> >
> > However, for your "1-c piece situation" image, you have what appears to
> > be a blue and an orange 1-c central piece swapped. If you were solving
> > purely intuitively then you may have a bit of trouble solving this but
> > if you have a 3-cycle for the 1-c pieces then just swap two
> > indistinguishable pieces such as two blue in the 3-cycle along with the
> > orange.
> >
> > For your "2-c piece parity 1b" and "2-c piece parity 1a" images, this
> > isn't really a parity but they must be solved together.
> >
> > I recently discussed a semi-generic technique for doing this on almost
> > any puzzle here:
> >
> http://www.twistypuzzles.com/forum/viewtopic.php?f=3D8&t=3D7830&p=3D21942=
2#p219422
> > The general idea is to 3-cycle your two flipped pieces along with some
> > other (choice is arbitrary) piece such that one of the flipped pieces
> > moves into the place of the other flipped piece (call this sequence X).
> > Then flip the whole group over and put it back in place (call this Y),
> > then undo X, then undo Y. This technique will work in any number of
> > dimensions.
> >
> > Good luck,
> >
> > Brandon
> >
> > -----BEGIN PGP SIGNATURE-----
> > Version: GnuPG v2.0.15 (GNU/Linux)
> >
> > iEYEARECAAYFAkxHNRsACgkQqaGPzAsl94JmswCfaN11Ja6eh2Dw6+nAFcunco40
> > X/MAn3VzbHkYtEJCNUGeCCM5MljsXnsG
> > =3DV8uU
> > -----END PGP SIGNATURE-----
> >
>
>=20=20
>

--005045013e1be7a67b048bf29fd6
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

Well, we can't exactly solve it for you, but one of the big hints that =
Brandon just gave is to try to "swap two

indistinguishable pieces".=C2=A0 When you realize the presence of indi=
stinguishable pieces, it suddenly no longer becomes a parity issue, but jus=
t another case to work out with your 3-cycles.=C2=A0 Still some work left f=
or you to figure out exactly how to use the 3 cycles to get what you want d=
one, but I think you'll feel pretty good about it when you do figure it=
out.=C2=A0 Good luck!


Chris

That reminds me of another problem I had. I'll just say it
The first time i tried solving the 3^4 I had a 2-cycle center parity, but t=
he third time (youtube vid)I realized it was a 3-cycle. lolz=20
I'm trying it right now. I switched 4 pieces...

--- In 4D_Cubing@yahoogroups.com, Chris Locke wrote:
>
> Well, we can't exactly solve it for you, but one of the big hints that
> Brandon just gave is to try to "swap two indistinguishable pieces". When
> you realize the presence of indistinguishable pieces, it suddenly no long=
er
> becomes a parity issue, but just another case to work out with your
> 3-cycles. Still some work left for you to figure out exactly how to use =
the
> 3 cycles to get what you want done, but I think you'll feel pretty good
> about it when you do figure it out. Good luck!
>=20
> Chris
>=20
> 2010/7/22 deustfrr
>=20
> >
> >
> > I updated the pictures. The red line is the wrong piece and the green l=
ine
> > are the right pieces. And, can you make a log file showing the XY moves=
?
> >
> >
> > --- In 4D_Cubing@yahoogroups.com <4D_Cubing%40yahoogroups.com>, Brandon
> > Enright wrote:
> > >
> > > -----BEGIN PGP SIGNED MESSAGE-----
> > > Hash: SHA1
> > >
> > > On Wed, 21 Jul 2010 13:53:56 -0000
> > > "deustfrr" wrote:
> > >
> > > > I have a problem with the last 2 faces
> > > >
> > http://groups.yahoo.com/group/4D_Cubing/photos/album/346940124/pic/list
> > > > reply please
> > > > (I got parental controls on time so I just type that, lolz)
> > > >
> > >
> > > deustfrr,
> > >
> > > Your images are quite hard (for me) to see the exact problem in conte=
xt.
> > >
> > > However, for your "1-c piece situation" image, you have what appears =
to
> > > be a blue and an orange 1-c central piece swapped. If you were solvin=
g
> > > purely intuitively then you may have a bit of trouble solving this bu=
t
> > > if you have a 3-cycle for the 1-c pieces then just swap two
> > > indistinguishable pieces such as two blue in the 3-cycle along with t=
he
> > > orange.
> > >
> > > For your "2-c piece parity 1b" and "2-c piece parity 1a" images, this
> > > isn't really a parity but they must be solved together.
> > >
> > > I recently discussed a semi-generic technique for doing this on almos=
t
> > > any puzzle here:
> > >
> > http://www.twistypuzzles.com/forum/viewtopic.php?f=3D8&t=3D7830&p=3D219=
422#p219422
> > > The general idea is to 3-cycle your two flipped pieces along with som=
e
> > > other (choice is arbitrary) piece such that one of the flipped pieces
> > > moves into the place of the other flipped piece (call this sequence X=
).
> > > Then flip the whole group over and put it back in place (call this Y)=
,
> > > then undo X, then undo Y. This technique will work in any number of
> > > dimensions.
> > >
> > > Good luck,
> > >
> > > Brandon
> > >
> > > -----BEGIN PGP SIGNATURE-----
> > > Version: GnuPG v2.0.15 (GNU/Linux)
> > >
> > > iEYEARECAAYFAkxHNRsACgkQqaGPzAsl94JmswCfaN11Ja6eh2Dw6+nAFcunco40
> > > X/MAn3VzbHkYtEJCNUGeCCM5MljsXnsG
> > > =3DV8uU
> > > -----END PGP SIGNATURE-----
> > >
> >
> >=20=20
> >
>

--001636417e1b89af4a048bfb6de9
Content-Type: text/plain; charset=windows-1252
Content-Transfer-Encoding: quoted-printable

do you have a regular 4x4x4 rubiks cube at home? try playing around with
that to see what happends. Your doing great so far and dont stress it.

On Thu, Jul 22, 2010 at 7:52 AM, deustfrr wrote:

>
>
> That reminds me of another problem I had. I'll just say it
> The first time i tried solving the 3^4 I had a 2-cycle center parity, but
> the third time (youtube vid)I realized it was a 3-cycle. lolz
> I'm trying it right now. I switched 4 pieces...
>
>
> --- In 4D_Cubing@yahoogroups.com <4D_Cubing%40yahoogroups.com>, Chris
> Locke wrote:
> >
> > Well, we can't exactly solve it for you, but one of the big hints that
> > Brandon just gave is to try to "swap two indistinguishable pieces". Whe=
n
> > you realize the presence of indistinguishable pieces, it suddenly no
> longer
> > becomes a parity issue, but just another case to work out with your
> > 3-cycles. Still some work left for you to figure out exactly how to use
> the
> > 3 cycles to get what you want done, but I think you'll feel pretty good
> > about it when you do figure it out. Good luck!
> >
> > Chris
> >
> > 2010/7/22 deustfrr
>
> >
> > >
> > >
> > > I updated the pictures. The red line is the wrong piece and the green
> line
> > > are the right pieces. And, can you make a log file showing the XY
> moves?
> > >
> > >
> > > --- In 4D_Cubing@yahoogroups.com <4D_Cubing%40yahoogroups.com><4D_Cub=
ing%
> 40yahoogroups.com>, Brandon
>
> > > Enright wrote:
> > > >
> > > > -----BEGIN PGP SIGNED MESSAGE-----
> > > > Hash: SHA1
> > > >
> > > > On Wed, 21 Jul 2010 13:53:56 -0000
> > > > "deustfrr" wrote:
> > > >
> > > > > I have a problem with the last 2 faces
> > > > >
> > >
> http://groups.yahoo.com/group/4D_Cubing/photos/album/346940124/pic/list
> > > > > reply please
> > > > > (I got parental controls on time so I just type that, lolz)
> > > > >
> > > >
> > > > deustfrr,
> > > >
> > > > Your images are quite hard (for me) to see the exact problem in
> context.
> > > >
> > > > However, for your "1-c piece situation" image, you have what appear=
s
> to
> > > > be a blue and an orange 1-c central piece swapped. If you were
> solving
> > > > purely intuitively then you may have a bit of trouble solving this
> but
> > > > if you have a 3-cycle for the 1-c pieces then just swap two
> > > > indistinguishable pieces such as two blue in the 3-cycle along with
> the
> > > > orange.
> > > >
> > > > For your "2-c piece parity 1b" and "2-c piece parity 1a" images, th=
is
> > > > isn't really a parity but they must be solved together.
> > > >
> > > > I recently discussed a semi-generic technique for doing this on
> almost
> > > > any puzzle here:
> > > >
> > >
> http://www.twistypuzzles.com/forum/viewtopic.php?f=3D8&t=3D7830&p=3D21942=
2#p219422
> > > > The general idea is to 3-cycle your two flipped pieces along with
> some
> > > > other (choice is arbitrary) piece such that one of the flipped piec=
es
> > > > moves into the place of the other flipped piece (call this sequence
> X).
> > > > Then flip the whole group over and put it back in place (call this
> Y),
> > > > then undo X, then undo Y. This technique will work in any number of
> > > > dimensions.
> > > >
> > > > Good luck,
> > > >
> > > > Brandon
> > > >
> > > > -----BEGIN PGP SIGNATURE-----
> > > > Version: GnuPG v2.0.15 (GNU/Linux)
> > > >
> > > > iEYEARECAAYFAkxHNRsACgkQqaGPzAsl94JmswCfaN11Ja6eh2Dw6+nAFcunco40
> > > > X/MAn3VzbHkYtEJCNUGeCCM5MljsXnsG
> > > > =3DV8uU
> > > > -----END PGP SIGNATURE-----
> > > >
> > >
> > >
> > >
> >
>
>=20=20
>

--001636417e1b89af4a048bfb6de9
Content-Type: text/html; charset=windows-1252
Content-Transfer-Encoding: quoted-printable

do you have a regular 4x4x4 rubiks cube at home? try playing around with th=
at to see what happends. Your doing great so far and dont stress it.
>

I really don't know what to do about this problem. And do I only swap 2 or =
can I swap 2 pairs?

> --- In 4D_Cubing@yahoogroups.com, Chris Locke wrote:
> >
> > Well, we can't exactly solve it for you, but one of the big hints that
> > Brandon just gave is to try to "swap two indistinguishable pieces". Wh=
en
> > you realize the presence of indistinguishable pieces, it suddenly no lo=
nger
> > becomes a parity issue, but just another case to work out with your
> > 3-cycles. Still some work left for you to figure out exactly how to us=
e the
> > 3 cycles to get what you want done, but I think you'll feel pretty good
> > about it when you do figure it out. Good luck!
> >=20
> > Chris
> >=20
> > 2010/7/22 deustfrr
> >=20
> > >
> > >
> > > I updated the pictures. The red line is the wrong piece and the green=
line
> > > are the right pieces. And, can you make a log file showing the XY mov=
es?
> > >
> > >
> > > --- In 4D_Cubing@yahoogroups.com <4D_Cubing%40yahoogroups.com>, Brand=
on
> > > Enright wrote:
> > > >
> > > > -----BEGIN PGP SIGNED MESSAGE-----
> > > > Hash: SHA1
> > > >
> > > > On Wed, 21 Jul 2010 13:53:56 -0000
> > > > "deustfrr" wrote:
> > > >
> > > > > I have a problem with the last 2 faces
> > > > >
> > > http://groups.yahoo.com/group/4D_Cubing/photos/album/346940124/pic/li=
st
> > > > > reply please
> > > > > (I got parental controls on time so I just type that, lolz)
> > > > >
> > > >
> > > > deustfrr,
> > > >
> > > > Your images are quite hard (for me) to see the exact problem in con=
text.
> > > >
> > > > However, for your "1-c piece situation" image, you have what appear=
s to
> > > > be a blue and an orange 1-c central piece swapped. If you were solv=
ing
> > > > purely intuitively then you may have a bit of trouble solving this =
but
> > > > if you have a 3-cycle for the 1-c pieces then just swap two
> > > > indistinguishable pieces such as two blue in the 3-cycle along with=
the
> > > > orange.
> > > >
> > > > For your "2-c piece parity 1b" and "2-c piece parity 1a" images, th=
is
> > > > isn't really a parity but they must be solved together.
> > > >
> > > > I recently discussed a semi-generic technique for doing this on alm=
ost
> > > > any puzzle here:
> > > >
> > > http://www.twistypuzzles.com/forum/viewtopic.php?f=3D8&t=3D7830&p=3D2=
19422#p219422
> > > > The general idea is to 3-cycle your two flipped pieces along with s=
ome
> > > > other (choice is arbitrary) piece such that one of the flipped piec=
es
> > > > moves into the place of the other flipped piece (call this sequence=
X).
> > > > Then flip the whole group over and put it back in place (call this =
Y),
> > > > then undo X, then undo Y. This technique will work in any number of
> > > > dimensions.
> > > >
> > > > Good luck,
> > > >
> > > > Brandon
> > > >
> > > > -----BEGIN PGP SIGNATURE-----
> > > > Version: GnuPG v2.0.15 (GNU/Linux)
> > > >
> > > > iEYEARECAAYFAkxHNRsACgkQqaGPzAsl94JmswCfaN11Ja6eh2Dw6+nAFcunco40
> > > > X/MAn3VzbHkYtEJCNUGeCCM5MljsXnsG
> > > > =3DV8uU
> > > > -----END PGP SIGNATURE-----
> > > >
> > >
> > >=20=20
> > >
> >
>