Climbing "Zahn um Zahn" (literally "Tooth for Tooth") on the Right Side is a significant accomplishment for any climber. This route, graded 9 (which is a difficult grade, typically equating to around 5.13d/14a on the Yosemite Decimal System), demands a high level of technical skill, power, and mental fortitude. The "Right Side" likely refers to a particular cliff or area within a crag, possibly indicating a specific variant or line of the route. Ascending "Zahn um Zahn" would involve navigating intricate sequences of challenging moves, potentially including demanding crimps, powerful lock-offs, precise footwork, and complex body positioning. Successfully sending this route speaks to years of dedicated training and a mastery of the sport.