Schachnovelle 1960
Directed by Gerd Oswald | Starring: Curd Jürgens, Claire Bloom, Hansjörg Felmy, Mario Adorf
Werner von Basil, a Austrian intellectual, was captured by the Nazis in 1938. They want to break him to confess smuggling. Without any mental sustenance, the only thing left to keep his mind busy is an old tactics book for chess.