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V Cube 7x7x7 edge parity question

Icedece

Member
Joined
Jan 31, 2009
Messages
11
hi i've finished pairing up as many edges as i can however i would like an algorithm please to overcome this parity issue. so what i need to do is to swap two tredges on the left and right side of the cube. For example image X as being the two edges i need to swap:

0000000
0000000
X00000X
0000000
0000000
0000000
0000000
 

Ellis

Member
Joined
Sep 23, 2008
Messages
1,212
WCA
2008HALL02
I fix my last inner edges before my outer edges so my algorithm uses triple layer turns. But if you only want to swap the two inners you can just do single slice moves in the same algorithm.

put the image you showed on the U layer, adjust with a U move first:

l' U2 l' U2 F2 l' F2 r U2 r' U2 l2 - remember all lower case are single slice moves of the 3rd layer if you're trying to preserve the two edges directly above the X's

Edit: To clarify, the U face should look like this before you do the algorithm

0000X00
0000000
0000000
0000000
0000000
0000000
0000X00

You can also use the same algorithm with double layer l & r turns to solve a similar case if you encounter it

00000X0
0000000
0000000
0000000
0000000
0000000
00000X0
 
Last edited:
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