Denis Urubko (Russian: Денис Викторович Урубко, Denis Viktorovitch Ouroubko), born July 29, 1973 in Nevinnomyssk (Russia), is a Russian and Polish mountaineer. He previously held Kazakh nationality from 1991 to 2012. In 2009, he became the fifteenth person to have climbed all 14 peaks over 8,000m high.…