Combination on the boulder of Le Tiroir / Rien de Bon (red n°22). Lying start as for Sphincters Toniques, climb Le Tiroir / Rien de Bon (red n°22), downclimb it, go up in L'Angle Ghersen, traverse to the right with top holds, downclimb the right arete up to the step and exit in L'Oblique.