Mallory Greenleaf is done with chess. That is, until she begrudgingly agrees to play in one last charity tournament and inadvertently wipes the board with notorious "Kingkiller" Nolan Sawyer: current world champion and reigning Bad Boy of the chess world. In this clever and swoonworthy YA debut, life's moving pieces bring rival chess players together in a match for the heart. 12+ From the New York Times bestselling author of 'The Love Hypothesis'.