Trouble with the 4x4x4 cube

[Karma Cat]

I'm having a bit of trouble with the edge pairing on the 4x4x4 cube. I've matched upp all the pairs except 2 that are on the opposite sides of each other. And I can't match them up, if I do another pair gets unmatched and takes over their place. Is there any algorithm that could be used here?

 

[ben1996123]

Hold the 2 unsolved edges on the front face, and do:

R2 Uw2 y' R U R' F R' F' R Uw2

And now all of the edges should be paired up.

 

[MichaelP.]

flip the cube so the edges face you, then do

L2 u2 (R F' U R' F) u2 .

 

[MichaelErskine]

With unpaired edges on FL and FR: d R F' U R' F d'

 

[DT546]

get the edges on the FR and FL positions so that opposite colours are matching and do Dw R F' U R' F Dw'

 

[Kirjava]

xy'rU2rU2xU2rU2l'x'U2lU2r2

 

[maggot]

u' R U R' U F' U' F u
this work for me if last pair is in front face and color is same, (not ready to be pair)... if is opposite you can use other algorithm above or you can take off the u' and u from above algorithm to flip right edges... edge is on left and right of the front face...
so, if you know how to flip one group edge upsidedown (R U R' U F' U' F) in 5x5 i use this a lot.. then you can understand how fixing these edge... just perform u before and fix with u' after..

 

[DaBear]

http://www.bigcubes.com/4x4x4/edges.html

its a good tutorial on it, how i learned, plus it has an animation showing you how to do it step by step

 

[Karma Cat]

Thanks, everyone. I finaly got it =)

I must say, these parity errors are majorly annoying and I hate them, hehe. And I'm thinking of getting a few new cubes so I figured I'd ask: What other cubes have parity errors so I know which ones to stay away from? =)

 

[Muesli]

3x3< all have parities, square one and 3x3x4 do iirc.