John Brunner’s 1965 science fiction novel The Squares of the City concerns a South American metropolis in which two opposing political leaders direct the actions of their followers using “subliminal perception.” In an afterword, Brunner revealed that he had organized the entire plot to follow a historic chess game, Steinitz-Tchigorin Havana 1892. Each of the 32 pieces and pawns corresponds to a character in the book, and every capture in the Steinitz-Tchigorin game corresponds to an event in the plot. For example, Felipe Mendoza, representing the black king’s bishop, is killed in a duel with Luis Arrio, who represents the...