K6 West has been the target of several previous attempts. Canadians Raphael Slawinski and Ian Welsted first had to climb through a complex and dangerous icefall to reach an elegant ice/mixed line on the Northwest face, which led in turn to the crest of the upper west ridge. The pair took five days to reach the summit, gaining 2,700m of vertical height above base camp. A further day was needed to descend the route.
- Ueli Steck and Raphael Slawinsky & Ian Welsted win the Piolets d'Or 2014