Luis Ramírez de Lucena
(c. 1465 – c.1530) was a leading Spanish chess player. He wrote the oldest existing printed book on chess, Repetition of Love and the Art of Playing Chess (Repetición de Amores y Arte de Ajedrez con 101 Juegos de Partido), published in Salamanca in 1497. The book contains analysis of eleven chess openings but contains many elementary errors that led chess historian Harold Murray to suggest that it was prepared in a hurry. The book was written when the rules of chess were taking their modern form (see origins of modern chess), and some of the 150 positions in the book are of the old game and some of the new. Fewer than a dozen copies of the book exist.