I see why this was classified as YA, but the characters are 18 and 20 and definitely have very adult conversations. This is a closed door romance though, and Ali Hazelwood can do no wrong in my eyes. There has not been a bad book by her, and I don't think there ever will be. I LOVED this book! I wasn't sure if I would, because I'm not a YA fan but this was great. I also don't know anything about chess, but the author did a great job explaining everything and really making me feel like I was a part of it. It was just fun, with the right amount of banter, romance, competition and obstacles to overcome for the characters. I really loved that both Mallory and Nolan were prodigies but both had different jouneys to get there and both had faced adversity in their personal lives when it came to their families. I loved their rivalry, but also how they supported each other and recognized each other's greatness without feeling jealous or superior. I love how Ali Hazelwood always touches on important topics, like LGBTQ+ and gender discrimination. These are issues that are important to acknowledge and talk about and to write about and I absolutely love that she never shies away. I know her books are not for everyone but I love them! They are so well written, have great characters, solid plots, funny banter with laugh out loud moments, obstacles to overcome and happy endings. What's not to love? I'm looking forward to her next book.