Climbing "Projekt" on the Arnstein Hauptwand is a formidable undertaking. The route, often considered a challenging testpiece, tackles the steepest section of this imposing wall. While the exact grade is debated, it is generally accepted to be somewhere in the high 8a/low 8b range (French scale), demanding exceptional power, technique, and mental fortitude. The climb features sustained sequences of powerful moves on small crimps and pockets, with minimal rest opportunities. Precision footwork and efficient body positioning are crucial for success. "Projekt" is known for its difficulty and commitment, requiring a high level of preparation and determination to overcome its demanding nature. Many climbers see it as a benchmark route, a significant milestone in their climbing careers.