F2L 20
Disconnected pairs: Both in the U layer, apart.
Algorithms
y' U' R' U2 R U' R' U Rreads as y' U' · Ne (inverse) · U' · Insert (inverse)U' R U' R2 F R F' R U' R'reads as U' R U' R2 F R F' · Inserty U' L' U2 L U' L' U Lreads as y U' · Ne (lefty) · Righty (lefty rev)U' F' U2 F U' F' U FU' F' U2 F2 R' F' Rreads as U' F' U2 F2 · Slam (reverse)U' F' U' L F' L' F2reads as U' F' U' · Slam (lefty) · F2