This hardcover has been professionally bound and includes volumes 11 and 12 of this well-known Yugoslav chess periodical covering 1971. The candidates matches between Petrosian and Korchnoi, (which has been neatly excised, but is tipped in), Fischer and Larsen,and Fischer and Petrosian are covered in entirety. Petrosian himself annotated all of the Fischer match games save one! Note the superstar list of commentators. Volume 11 contains 622 games and volume 12, 700 games. Also included are the usual sections on endgames and combinations.