The route (VI, AI5, M5,1400m) was a defining moment in Kellogg's climbing:

"A 50 hour push is the longest climbing push either of us has done to date. I am thankful to have put up such a demanding line on the South Face, and equally thankful that we were able to descend safely under our own power back to base camp in a single push. This climb defined high altitude climbing minimalism for David and I. I hope that we can continue to push our limits safely in the mountain and put up more beautiful climbs on other unclimbed peaks of the world."

• Kellogg has written up a gripping account of their ascent on humanedgetech.com