Switzerlands Ueli Steck soloed the 1938 route on the North Face of the Eiger in 3 hours 54 minutes. Steck climbed the 6,000-vertical-foot route over two days in mid-February with a partner, and then returned three days later to solo it. He self-belayed a few pitches with a 15-meter loop of rope tied through an anchor and then pulled up after the crux, but otherwise free-soloed.
For full details please see Climbing
Mag's Hot Flashes.