Climbing "Under Pressure" (grade 10) on the Arnstein Hauptwand is a committing and demanding alpine rock route. The Hauptwand, meaning 'main wall,' is known for its steep, exposed climbing and serious alpine atmosphere. "Under Pressure" likely earns its name from the combination of technical difficulties, significant exposure, and potential for difficult protection. Grade 10 in this context refers to a UIAA scale grade, indicating a very challenging climb requiring solid technique, physical endurance, and sound judgment. The route likely involves sustained sequences of difficult moves, potentially including crimps, slopers, and powerful pulls on less-than-ideal holds. Crucially, success depends not only on climbing ability but also on proficiency in placing gear for protection in potentially run-out sections. Thorough route finding and careful planning are essential for a safe and successful ascent. Climbers should be experienced in alpine climbing and comfortable with the inherent risks of such a demanding environment.