If you’re thinking about ducking a rope for that untouched powder, think again. You’re risking more than just a ski pass. The rules and ordinances that regulate backcountry use in Tahoe’s South Shore aren’t as clear cut as the ropes that designate a ski area’s boundary. Since consequences vary depending on which side of Stateline you’re on, it’s important to know the terrain, current conditions and county ordinances. Fact number oneThe ski company can and will pull your pass if you’re caught cutting a rope into the backcountry. “If we see someone duck a rope, we’re definitely going to have …