OLL 20

Dot: No edges oriented; comes up 1 in 216 solves.

Algorithms

1. r U R' U' M2 U R U' R' U' M' reads as r U R' U' M2 · Righty (reverse) · U' M'
2. M' U2 M U2 M' U M U2 M' U2 M
3. S' R U R' S U' M' U R U' r' reads as S' · Extract · S U' M' U R U' r'
4. S R' U' R U R U R U' R' S' reads as S · Righty (inverse) · ZigZag · R' S'

Also in Dot

• OLL 1
• OLL 2
• OLL 3
• OLL 4
• OLL 17
• OLL 18
• OLL 19

All 57 OLL cases