On 23 August 2011, a team of four climbers reached the summit of K2 from the North side. Gerlinde Kaltenbrunner became the first woman to complete all 14 eight-thousanders without supplemental oxygen. Kazakhs Maxut Zhumayev and Vassiliy Pivtsov completed their eight-thousanders quest. The fourth team member was Dariusz Załuski from Poland.