4x4 · PLL Parity
4x4 PLL Parity OPP Parity algorithm
4x4 PLL Parity OPP Parity algorithm: 9 turns, opening with Rw2 R2 U2. Case recognition, the complete sequence, and practical execution notes.
- Puzzle
- 4x4
- Method
- PLL Parity
- Case
- OPP Parity
4x4
Follow each turn at your own pace.
Move 1 of 9: Rw2
Correct the 4x4 reduced-edge permutation parity that cannot occur on a legal 3x3.
OPP Parity belongs to the Edge Swap group in PLL Parity.
Identify the parity case
The opposite-edge parity case exchanges a pair of opposite reduced edges in the upper layer.
Execute the algorithm
Rw2 R2 U2 Rw2 R2 Uw2 Rw2 R2 Uw2
The opening is Rw2 R2 U2; the final segment is Rw2 R2 Uw2. This version contains 9 face, wide, or slice turns and no whole-puzzle rotations.