Sit start with left hand pinching the arete, and the right on a good small flake. Make a stiff pull to reach a sharp pinch for the right hand, then move up higher on the arete with your left.Continue moving up the arete with your left until the crux pull gains a good hold for the right up high.From here seek out the small but positive holds up high and complete this excellent problem.The problem is also good from the standing start, but for the full tick you need to start from sitting.