Chess is like life.
Chess is not like life. It has rules!
Chess is life.
If Chess is a science, it's a most inexact one. If Chess is an art, it is 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.
Life is a kind of Chess, with struggle, competition, good and ill events.