Good pockets lead to the ledge, then it's more pockets (including a couple of wonderful mailslots) to a strenuous overhang. The moves over the overhang are somewhat inobvious and leave you crying for better feet. Once above the overhang a tenuous move or two leads to another, slopey ledge and a short respite.
The last section leads through a tricky sequence with occasionally-less-than-satisfying pockets to a final ledge, upon which you stand to clip the chains.
Fourth from the left on the blue-gray wall.
8 bolts, chain anchors.