AF2L 4
Trapped corner: The corner is stuck in another slot.
Algorithms
F R' F' R U R' U2 Rreads as Sledgehammer (reverse) · U · Ne (inverse)R U R' U2 f R f'reads as Extract · U2 f R f'R U R' U2 S U' R' U R S'reads as Extract · U2 S U' · Insert (inverse) · S'y U2 L' U L U' R U R'reads as y U2 · Lefty (inverse) · Extracty U' F U' R U R' U R' F' Rreads as y U' F U' · Su · Slam (reverse)y U' F2 R' F2 L' R2 U2 L R'