Marcel Duchamp was not only one of the most influential artists of the 20th century, but also a passionate chess player. However, chess was much more than a pastime for him. The theory and practice of the game had a significant influence on his thinking and artistic work. For the first time, this book shows how closely the board game is linked to Duchamp's artistic strategies in the first half of the century. Art historian Astrid Honold presents his extensive chess activities and reconstructs the 315 games that have been preserved. Position diagrams and analyses by chess expert Michail Chatzidakis make the book a varied read even for chess connoisseurs.