Jernau Morat Gurgeh, a famously skillful player of board games and other similar contests, lives on Chiark Orbital, and is bored with his successful life. The Culture's Special Circumstances (SC) inquires about his willingness to participate in a long journey, though won't explain further unless Gurgeh agrees to participate. While he is considering this offer, one of his drone friends, Mawhrin-Skel, which had been ejected from SC due to its unstable personality, convinces him to cheat in one of his matches in an attempt to win in an unprecedentedly perfect fashion. The attempt fails, but Mawhrin-Skel uses its recording of the event to blackmail Gurgeh into accepting the offer, so that he can use his connections with SC to request that Mawhrin-Skel be admitted back into SC as well.