4x4 · PLL Parity
4x4 PLL Parity Ba algorithm
4x4 PLL Parity Ba algorithm: 23 turns, opening with Uw2 Lw2 L2. Case recognition, the complete sequence, and practical execution notes.
- Puzzle
- 4x4
- Method
- PLL Parity
- Case
- Ba
4x4
Follow each turn at your own pace.
Move 1 of 23: Uw2
Correct the 4x4 reduced-edge permutation parity that cannot occur on a legal 3x3.
Ba belongs to the Adj Corner Swap group in PLL Parity.
Match the parity configuration
Ba combines its named edge configuration with the parity correction. Use the inverse of this exact sequence to establish its training position; a different parity entry can require a different piece arrangement.
Execute the algorithm
Uw2 Lw2 L2 Uw2 Lw2 L2 U2 Lw2 L2 U R U R' F' R U R' U' R' F R2 U' R'
The opening is Uw2 Lw2 L2; the final segment is R2 U' R'. This version contains 23 face, wide, or slice turns and no whole-puzzle rotations.