"Checkmate" is a novel written by Joseph Sheridan Le Fanu, an Irish author known for his works of gothic and supernatural fiction. Originally published in 1871 as a serialized story in "The Dublin University Magazine," the novel is set in Ireland and explores complex relationships and intrigues among its characters. It combines elements of gothic and psychological fiction, delving into themes of love, betrayal, and the consequences of one's actions. As with many of Le Fanu's works, "Checkmate" features mysterious and enigmatic characters who play pivotal roles in the unfolding drama. While it may not be as well-known as some of Le Fanu's other works, it remains a notable contribution to the gothic fiction genre and Victorian-era literature.