Sure, playing chess needs intelligence, dedication, and good chess players are smarter than an average person. But it’s waaaay exaggerated in movies. I’m a math researcher, and in any movie, my department will be full of chess geniuses. But in reality, only about 10% of them even play chess.
It’s arguably not solved at all. If it were, we would know whether white can always win or whether black can always draw, and that’s still unknown.