Sit start with hands on huge undercling jugs and feet wherever you can find them. Move left with the hand to sidepull, undercling, or pinch above you on the slab. A kneebar is on offer before you move left on miniscule feet and grab the edge with the left hand. Lay back on that edge, get high feet on a little dish, and then use a high left foot plant or heel hook that’s oh-so-perfectly placed. Get higher hands and mantle onto the edge to top out.
Problem is found on the right side of the Skull Crack boulder when facing the main crack side face.