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7x7x7 Edge Issue (gabbasoft)

skwishy

Member
Joined
Jul 17, 2008
Messages
20
Location
Utah
This is my first attempt at solving a 7x7x7 cube and I have run into a problem that I just cant quite seem to figure out.

I have solved all the centers and all of the edges except for two of them.

The left edge looks like this



And the right edge looks like this



If anyone knows of some algorithms that would help me out I would greatly appreciate if you shared them with me.
 
Joined
Apr 17, 2008
Messages
735
Location
Massachusetts, USA
WCA
2009JOHN07
YouTube
rjohnson8ball
Yes, there is a way to swap those 2 cubies between green-yellow to orange-yellow.

Another way, which I prefer but might not be efficient, is to move a green-yellow into a yellow-green position. Then I will be able to do a 3 way cubie swap on 3 edges. The result will be all edges completed, except maybe one which has some cubies upside down. Then I use the alg to swap an "l" cubie with an "r" cubie on one single super edge, with no apparent effect to anything else anywhere:

r2 B2 U2 l U2 r' U2 r U2 F2 r F2 l' B2 r2

The above alg can be found at http://speedcubing.com/chris/4-step3.html which I believe was written by Chris Hardwick.
 
Last edited:
Joined
Jul 20, 2006
Messages
43
Location
Ann Arbor, MI
If yellow face is F and blue face is R, then perform R2 (Dd)2 {flip the RB edge group} (Dd)2.

You can flip the edge group using whatever you want that doesn't effect the rest of E layers or their center orientations - usually 6 turns like B U' B' R' U2 R.
 
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