NN vs Bronstein, 1961  (E30) Nimzo-Indian, Leningrad, 19 moves, 0-1 W Schmidt vs P Enders, 1981   (E31) Nimzo-Indian, Leningrad, Main line, 29 moves, 0-1 Spassky vs Tal, 1973  (E30) Nimzo-Indian, Leningrad, 38 moves, 0-1 S Prokofiev vs M Ravel, 1924  (E30) Nimzo-Indian, Leningrad, 25 moves, 1-0 Spassky vs H Posner, 1971 (E30) Nimzo-Indian, Leningrad, 28 moves, 1-0 Spassky vs H Liebert, 1967  (E30) Nimzo-Indian, Leningrad, 23 moves, 1-0 Spassky vs Portisch, 1955  (E30) Nimzo-Indian, Leningrad, 36 moves, 1-0 Spassky vs Smyslov, 1953  (E31) Nimzo-Indian, Leningrad, Main line, 35 moves, 1-0 Korchnoi vs B Djurasevic, 1956  (E30) Nimzo-Indian, Leningrad, 25 moves, 0-1 9 games