Unknown: If chess is a science, it's a most inexact one. If chess is an art, it's too exacting to be seen as one. If chess is a sport, it's too esoteric. If chess is a game, it's too demanding to be "just" a game. If chess is a mistress, she's a demanding one. If chess is a passion, it's a rewarding one. If chess is life, it's a sad one.
