Kuen

University of California, Irvine, imagines a "pseudosphere" called Kuen's surface as an equation, a drawing, and a glass sculpture.

National Geographic News 2010

So Kuen and Scholz continued to the summit, reaching it at four p.m.

Brotherhood of the Mountain Shoumatoff, Alex 2006

Realizing this, and accepting that he and his brother were on their own, Messner shouted — this is all that Kuen could make out in the whipping wind — "Alles in Ordnung" ( "Everything is O.K.").

Brotherhood of the Mountain Shoumatoff, Alex 2006

Take his explanation for why Kuen and Scholz heard Messner shouting above them from the Merkl Gap as they were making their way up the Merkl Couloir.

Brotherhood of the Mountain Shoumatoff, Alex 2006

Except that Messner probably wouldn't have waved them on and shouted, "Alles in Ordnung," if Günther had been on the Rupal Face; he would have made sure Kuen and Scholz knew that his brother was above them.

Brotherhood of the Mountain Shoumatoff, Alex 2006

Kuen later wrote that the brothers, with their "little prank" of going down the Diamir side, had "alienated themselves from our company" and "perplexed the leadership."

Brotherhood of the Mountain Shoumatoff, Alex 2006

In 1974, Kuen committed suicide, for reasons not related to Nanga Parbat.

Brotherhood of the Mountain Shoumatoff, Alex 2006

Reaching the top of the Merkl Couloir, Kuen and Scholz saw Messner shouting and waving from the overhanging cornice of the Merkl Gap, 300 feet above them.

Brotherhood of the Mountain Shoumatoff, Alex 2006

But if this had been so, wouldn't Kuen and Scholz have found Günther farther up the Rupal Face, after Messner waved them on?

Brotherhood of the Mountain Shoumatoff, Alex 2006

Von Kienlin argued that Messner had been shouting down not to Kuen and Scholz but to Günther, who was somewhere below him on the Rupal Face.

Brotherhood of the Mountain Shoumatoff, Alex 2006