6 - 7
FATMAP difficulty grade
Trail with some ridge air and a little bit of scrlimbing Tour explained by the monsters of hikr.org https://www.hikr.org/tour/post23883.html From my route: Brünnelistock has 10 meters of IV-V climbing, left couloir looks easier (see pics) this can be avoided going around to left side, as going, clockwise. This must not be necessary but we are on internet...
the Brünnelistock crack should only be followed by people confortable without rope on the IV climbing grade.