| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. Bagirov vs M Mukhitdinov |
| ½-½ | 39 | 1962 | URS-ch semifinal Novosibirsk | E31 Nimzo-Indian, Leningrad, Main line |
| 27. S Johannessen vs N Minev |
| ½-½ | 76 | 1963 | Halle Zonal | E31 Nimzo-Indian, Leningrad, Main line |
| 28. Gufeld vs Y Sakharov |
| 0-1 | 38 | 1964 | Ukrainian Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 29. Keene / Burnett vs Sully / Tyrell / Jones |
 | 1-0 | 22 | 1964 | Consultation game | E31 Nimzo-Indian, Leningrad, Main line |
| 30. J Mora Corbera vs Keres |
| 0-1 | 33 | 1964 | Tel Aviv Olympiad Final-A | E31 Nimzo-Indian, Leningrad, Main line |
| 31. H Berliner vs Y Rokhlin |
| 1-0 | 46 | 1965 | 5th Correspondence World Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 32. S Johannessen vs A Matanovic |
| ½-½ | 27 | 1965 | Hoogovens | E31 Nimzo-Indian, Leningrad, Main line |
| 33. Spassky vs Keres |
 | 1-0 | 50 | 1965 | Spassky - Keres Candidates Quarterfinal | E31 Nimzo-Indian, Leningrad, Main line |
| 34. L Joyner vs M Schulman |
| ½-½ | 82 | 1965 | Canadian Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 35. Szabo vs J H Donner |
| ½-½ | 21 | 1965 | Amsterdam IBM | E31 Nimzo-Indian, Leningrad, Main line |
| 36. P Struner vs F Kuijpers |
| 0-1 | 42 | 1966 | Clare Benedict Cup 13th | E31 Nimzo-Indian, Leningrad, Main line |
| 37. M J Freeman vs J Mollekens |
| 1-0 | 33 | 1966 | Havana Olympiad Final-B | E31 Nimzo-Indian, Leningrad, Main line |
| 38. V Brond vs R A Redolfi |
| 1-0 | 36 | 1967 | Cordoba op | E31 Nimzo-Indian, Leningrad, Main line |
| 39. A Lukin vs Karpov |
| 0-1 | 58 | 1967 | 03, Moscow | E31 Nimzo-Indian, Leningrad, Main line |
| 40. J Kristinsson vs M Johansson Sr |
| ½-½ | 45 | 1967 | Halle Zonal | E31 Nimzo-Indian, Leningrad, Main line |
| 41. H Ree vs K Langeweg |
| 1-0 | 39 | 1967 | Dutch Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 42. Bagirov vs S Zinser |
| 1-0 | 40 | 1968 | Moscow | E31 Nimzo-Indian, Leningrad, Main line |
| 43. H Lehmann vs S Tatai |
| 0-1 | 49 | 1968 | Solingen | E31 Nimzo-Indian, Leningrad, Main line |
| 44. D Marovic vs H Ree |
| 0-1 | 35 | 1968 | Amsterdam IBM | E31 Nimzo-Indian, Leningrad, Main line |
| 45. A Cherepkov vs Taimanov |
| ½-½ | 26 | 1969 | Leningrad ch-SU sf | E31 Nimzo-Indian, Leningrad, Main line |
| 46. Krogius vs Bobotsov |
| 1-0 | 28 | 1969 | Varna | E31 Nimzo-Indian, Leningrad, Main line |
| 47. R Toran Albero vs H Liebert |
| 1-0 | 36 | 1970 | Siegen Olympiad Final-A | E31 Nimzo-Indian, Leningrad, Main line |
| 48. J Rubinetti vs Polugaevsky |
| 0-1 | 38 | 1971 | Mar del Plata | E31 Nimzo-Indian, Leningrad, Main line |
| 49. G Mititelu vs Antoshin |
| ½-½ | 43 | 1971 | CSR-ch International | E31 Nimzo-Indian, Leningrad, Main line |
| 50. J Flesch vs Forintos |
| 0-1 | 42 | 1971 | Hungarian Championship | E31 Nimzo-Indian, Leningrad, Main line |
Kibitzing
