3x3x4 Parity

[qqwref]

I solve the middle layers first and sometimes I get a parity where the middle layers are an R2 off and the outer layers are solved (or vice versa, they are the same thing). The parity fix is as follows:
u2 F2 R2 2U2 R2 F2 u2

That's it Have fun solving.

 

[luke1984]

I solve the middle layers first and sometimes I get a parity where the middle layers are an R2 off and the outer layers are solved (or vice versa, they are the same thing). The parity fix is as follows:
u2 F2 R2 2U2 R2 F2 u2

That's it Have fun solving.

Doesn't (R U2)*3 with the switched dedges in BR and FR position give exactly the same result?

 

[Cyrok215]

What does 2U2 stand for?

 

[miniGOINGS]

A double layer U2 I think.

 

[Cyrok215]

Does u stand for 2 layers or just the inner layer?

 

[miniGOINGS]

Maybe, 2U2 is only the second layer then...

 

[Lucas Garron]

qq is using SiGN: u2 F2 R2 2U2 R2 F2 u2

 

[Konsta]

..or I can use this.

 

[Kenneth]

QQ's alg is about the same as the Pochmann 5x5 "PLL-parity" that works fine if you first turn the puzzle sideways so you get the parity in the "normal" position, the usual Hardwick does not work here but my 2-gen does:

2x(r2 U2 r U2 r2 U2) ... same here, position it with 3x3 sides in R and L

Same moves as 2x(2x2x2 H-OLL) but inner slice, only outher slice (R face) makes "H-PLL" and double layers (Rw) makes single edge parity in "U/D".

For a single dege flip in the middle layers you turn it the same and use OLL-parity.

2-flip: r U2 r' l' U2 r U2 r' U2 l r U2 r' U2 ... sideways puzzle orientation again.