Sultan of Rings

You enter a dimly lit room. A smell of fruits, tea and hookah tobacco tingles your nose. Purple and blue smoke swirls around you, hiding silhouettes of other visitors of this Hookah Place. You enter an unspoken tournament: how much smoke rings can you blow through other smoke rings before coals of your hookah will burn out? Rules: A round lasts as long as the coals in your hookah - keep track of their color. For every ring you blow through another ring, you get a point. But be careful - if you i...