Opposite layer

Common

Every case cross-checked

Solve the opposite corners and centre while leaving side centres free.

Singlet

LL 01 · Singlet

(y') x R' x b x' R x b' x2

4 HTM · 6 algs

LL 02 · Singlet

(y') y2 x2 b x' R' x b' x' R x' y2

4 HTM · 6 algs

Triplet

LL 10 · Triplet

y' x r' x b x' R r R' x b x' r' x b' x2 y

8 HTM · 6 algs

LL 09 · Triplet

y x r R' r x b x' r' R x b x2 y'

7 HTM · 6 algs

LL 11 · Triplet

x2 b' x' r R' r' x b x' r R r' x'

8 HTM · 6 algs

Doublet

LL 04 · Doublet

x r R r R' z' r' R r z x'

7 HTM · 6 algs

LL 06 · Doublet

x r' R r R' z' r' R r R' z x'

8 HTM · 6 algs

LL 07 · Doublet

(y) x r' R r R' z' R r' R' r z x'

8 HTM · 6 algs

LL 05 · Doublet

x R r R' z' r' R r R z x'

7 HTM · 6 algs

LL 08 · Doublet

(y2) x r' R r R' z2 r' R r R' z2 x'

8 HTM · 6 algs

LL 03 · Doublet

(y2) y2 x R' x b x' R x b' x' R' x b x' R x b' x2 y2

8 HTM · 6 algs

Source: Cubemuch, https://cubemuch.com/en/algs/skewb/top-layer/, retrieved 2026-10-29: case names and groups, and each case's algorithms: those credited to the community sheets it cites first, in its order, then those its search found, best-scored first (no votes or setups). The source's first six verified alternatives per case are retained; further generated variants are omitted to keep case pages and the client bundle bounded. Every algorithm shown was checked by the logic engine; rejected ones are listed in docs/db-exclusions.md.