F2L 19
Disconnected pairs: Both in the U layer, apart.
Algorithms
U R U2 R' U R U' R'reads as U · Ne · Righty (reverse)U R U2 R2 F R F'd f R2 f' U f R' f'R U' R' U R U' R' U R U R'reads as Insert · Righty (reverse) · U · Extract
Disconnected pairs: Both in the U layer, apart.
U R U2 R' U R U' R' reads as U · Ne · Righty (reverse)U R U2 R2 F R F'd f R2 f' U f R' f'R U' R' U R U' R' U R U R' reads as Insert · Righty (reverse) · U · Extract