The Squares of the City

"Built in the heart of the jungle, The City was an architect's masterpiece--& the scene of a flesh-&-blood game of chess where the unwitting pawns were real people!"
The Squares of the City is a science fiction novel written by John Brunner and first published in 1965 (ISBN 0-345-27739-2). It was nominated for the Hugo Award for Best Novel in 1966.
It is a sociological story of urban class warfare and political intrigue, taking place in the fictional South American capital city of Vados. It explores the idea of subliminal messages as political tools, and it is notable for having the structure of the famous 1892 chess game between Wilhelm Steinitz and Mikhail Chigorin. The structure is not coincidental, and plays an important part in the story.