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1001010101001

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Joined
Dec 18, 2017
Messages
1,027
Location
Australia
WCA
2017WENR01
R U R’ U’ — setup
(Take r as a slice turn)
l’ U2 l U2 l U2 r’ U2 l U2 l’ U2 F2 l2 F2 r

U R U’ R’

Edit :If you don’t have wifi, how did you post this?
 

xyzzy

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Dec 24, 2015
Messages
2,876
The exact case as in the picture is indeed impossible, but what's possible are cases like these:

Adj.case1.png
Adjcase2.png
Adjcase3.png


For these, the solution is as 1001010101001 mentioned: do some setup moves to bring the two pieces you want to swap to the UFr and UBr positions, do that alg, then undo the setup moves.
 

Christopher Mowla

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For pll has anyone compiled a list of algs for the remaining cases with parity?
Thanks in advance
If you mean for PLL parity, I put quite a few algorithms for most of the 22 PLL Parity cases at the beginning of the 4x4x4 parity algorithms Wiki page. I have included all (or at least most) of the original algorithms found for these cases back at the beginning of the century.

I am aware that there have been several videos of PLL parity tutorials featuring new (and possibly faster) algorithms for each of the cases, but I lost track of them. If someone does his or her research and figures out which algorithms for PLL parity cases which are already not in the Wiki and lists them here, I will add them to the Wiki.
 

Lapis

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Joined
Jun 7, 2017
Messages
19
Is there a nice way to solve this pll parity case?
Set Up: (V Perm) U2 R U R' U' (PLL Parity) U' R U' R'
 

xyzzy

Member
Joined
Dec 24, 2015
Messages
2,876
Is there a nice way to solve this pll parity case?
Set Up: (V Perm) U2 R U R' U' (PLL Parity) U' R U' R'
Just do PLL parity + E perm.

Alternatively, Uw2 Rw2 U2 Rw2 R' D R' U' R (U2 D') R' D' R U2 R' (U' D) Rw2 Uw2, or one of the algs in the wiki page linked in the post directly above yours.
 
Joined
Jun 16, 2018
Messages
406
Location
Jakarta, Indonesia
WCA
2017PRAM03
i ever accidentally get this condition, i did oll algorithm but i realised this condition so i reversed oll algorithm before oll algorithm is done and i did oll parity 2 times

if you get this condition :

untitled5-png.9228

untitled6-png.9229


do oll parity algoritm 2 times with this algorithm

(Rr)2 B2 U2 (Ll) U2 (Rr)' U2 (Rr) U2 F2 (Rr) F2 (Ll)' B2 (Rr)2

and your 4x4 will be solved
 

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kemuat

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Joined
Apr 12, 2017
Messages
36
WCA
2017ALQU01
So, I’m not sure if this is the appropriate place to put this question, but the title of this thread is quite vague, so I’ll just throw the question. I’m having trouble with my AoSu GTS M. Nothing seems wrong with the mechanism. No pieces are broken and the centers are put in correctly. However, when I turn the inner layers, the centers will frequently misalign.
This is really troubling as I have tried disassembling the cube and reassembling the cube multiple times. I have also assured that the centers are put into the right spots and oriented correctly. Can anyone please find a solution? The cube used to be my main before this incident.
 
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