Given the popular view of chess as mechanical & abstract, this novel radiates surprising warmth. Perhaps because the story is not *only* about chess. It also presents what might appear a perfect contrast to the world of abstract games: near-unconditional love between two living humans.
The central protagonist, Luzhin, grows up a chess prodigy, becomes a top world player, meets the love of his life, a woman of character who loves him back despite his appalling health & uncouth traits. Their union lasts for a while, until - but you should read the rest.
Now there's no escaping that the book revolves around the very axis of chess. Though Nabokov always evades the purely technical, I would have a hard time pushing this book to people who are not at least interested in gaming in the most general terms, & perhaps know the basics of chess (this is not far from my own case). Much of the story deals with how its main character, within the realm of chess, is a dancer in the greatest Russian tradition, & to appreciate the full beauty of this, however indirectly conveyed by Nabokov's elegant style, some appreciation for abstract games can only be an asset.
Still, it is in the real, earthy, fleshy world that one woman instantly recognizes our hero as master of an exalted craft. When he later runs into trouble, she is true to him, striving to transform him - less for her own convenience than out of compassion, & for his survival. Her love, & his appreciation of it, are moving. Though the novel may lose a little pace toward the end, this is more than made up for by calm, incandescent splendour. A Love Story, probably unreadable if it weren't so intelligently written.