The Midnight Library by Matt Haig is a short and interesting novel by the British writer. It's a nice read about the choices we make—and how we have more choices than we think—with below from the book...
"'You need to realise something if you are ever to success at chess,' she said, as if Nora had nothing bigger to think about. 'And the thing you need to realise is this; the game is never over until it is over. It isn't over if there is a single pawn still on the board. If one side is down to a pawn and a king, and the other side has every player, there is still a game.'"