16m. Climb the beginning crux of Satchmo before breaking right to arrive at the large central break/ledge of the buttress. Having arranged protection from the ledge, climb the steep hanging flake left of the arete with a hard move to gain a line of horizontal slots. Follow these rightwards to an impressive position and a large flat hold on the arete. From here, span right to vague sidepulls and gain a sloping shelf beneath a tiny roof. Good holds at the top of the Stratagem crack system can now be reached, finish as for that route.