PLL parity

Swap two dedges (or a pair of corners) on a 4x4's last layer: 22 cases.
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Edge Swap

Adj Corner Swap

Pj
R U R' U' R' F R2 U' R' U' R U R' F' U' 2L2 U2 2L2 Uw2 2L2 Uw2
24 HTM · 3 algs
Ba
Uw2 2L2 Uw2 2L2 U2 2L2 U R U R' F' R U R' U' R' F R2 U' R'
23 HTM · 3 algs
Bb
(U) y x Rw2 U2 Rw2 Uw2 2R2 Uw2 B 3Rw' U R' U2 L U' R
15 HTM · 3 algs
Ca
(U2) y2 Uw2 2R2 Uw2 2R2 U2 Rw2 F R U R U' R' F' R U2 R' U2 R
20 HTM · 2 algs
Cb
(U) y R' U2 R U2 R' F R U R' U' R' F' Rw2 U2 2R2 Uw2 2R2 Uw2
20 HTM · 3 algs
Da
R' U L' U2 R U' 3Rw B Rw2 U2 Rw2 Uw2 2R2 Uw2 x'
15 HTM · 3 algs
Db
R U R' F' R U R' U' R' F R2 U' R' u2 2R2 u2 2R2 U2 2R2
22 HTM · 3 algs
Ka
(U) y 3Lw' U R' D2 R U' R' D2 x' Rw2 U2 2R2 Uw2 2R2 Uw2
16 HTM · 1 alg
Kb
r2 F2 U2 r2 R2 U2 x R' D' R U2 R' D R r2 x' U'
15 HTM · 3 algs
M
(U2) y2 Rw2 F2 U2 2R2 U R' U' R U R' D R D' R F2 U Rw2
18 HTM · 1 alg
Pa
R U R' F' R U R' U' R' F R2 U' R' U' 2R2 U2 2R2 u2 2R2 u2
23 HTM · 2 algs
Pb
2R2 U2 2R2 u2 2R2 u2 R U R' F' R U R' U' R' F R2 U' R'
22 HTM · 2 algs

Diag Corner Swap

Source: SpeedCubeDB, https://speedcubedb.com/a/4x4/PLLParity, retrieved 2026-10-24: case names, groups, setups and images, and the top-voted algorithms per case with their votes. Every algorithm shown was checked by the logic engine; rejected ones are listed in docs/db-exclusions.md.