| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. D Marovic vs H Ree |
| 0-1 | 35 | 1968 | Amsterdam IBM | E31 Nimzo-Indian, Leningrad, Main line |
| 52. A Cherepkov vs Taimanov |
| ½-½ | 26 | 1969 | Leningrad ch-SU sf | E31 Nimzo-Indian, Leningrad, Main line |
| 53. N Krogius vs Bobotsov |
| 1-0 | 28 | 1969 | Varna | E31 Nimzo-Indian, Leningrad, Main line |
| 54. B Kliukin vs E Lazarev |
| 1-0 | 40 | 1969 | Avangard Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 55. B Kliukin vs A Beliavsky |
| 1-0 | 23 | 1969 | Avangard Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 56. R Toran vs H Liebert |
| 1-0 | 36 | 1970 | Siegen Olympiad Final-A | E31 Nimzo-Indian, Leningrad, Main line |
| 57. J Rubinetti vs Polugaevsky |
 | 0-1 | 38 | 1971 | Mar del Plata | E31 Nimzo-Indian, Leningrad, Main line |
| 58. G Mititelu vs Antoshin |
| ½-½ | 43 | 1971 | Luhacovice | E31 Nimzo-Indian, Leningrad, Main line |
| 59. J Flesch vs Forintos |
| 0-1 | 42 | 1971 | Hungarian Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 60. J Flesch vs Plachetka |
| ½-½ | 41 | 1971 | Novy Smokovec | E31 Nimzo-Indian, Leningrad, Main line |
| 61. U Kunsztowicz vs A Suess |
| 1-0 | 41 | 1972 | West German Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 62. U Kunsztowicz vs D Weise |
| 1-0 | 19 | 1972 | West German Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 63. N Stull vs J Sloth |
| 0-1 | 26 | 1972 | Skopje Olympiad qual-1 | E31 Nimzo-Indian, Leningrad, Main line |
| 64. S Johannessen vs K Janetschek |
| 1-0 | 52 | 1972 | Skopje Olympiad Final-B | E31 Nimzo-Indian, Leningrad, Main line |
| 65. G Moehring vs A Hennings |
| ½-½ | 55 | 1973 | East German Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 66. U Kunsztowicz vs Keres |
| ½-½ | 47 | 1973 | FRG-ch International | E31 Nimzo-Indian, Leningrad, Main line |
| 67. A R Cullinane vs C Pritchett |
| 0-1 | 41 | 1973 | British Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 68. A H Williams vs C Pritchett |
| ½-½ | 25 | 1973 | British Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 69. Hort vs J Augustin |
| ½-½ | 16 | 1974 | Czechoslovak Championship | E31 Nimzo-Indian, Leningrad, Main line |
| 70. A H Williams vs Karpov |
 | 0-1 | 30 | 1974 | Nice Olympiad qual-1 | E31 Nimzo-Indian, Leningrad, Main line |
| 71. J Cooper vs Parma |
| 0-1 | 34 | 1974 | Nice Olympiad Final-A | E31 Nimzo-Indian, Leningrad, Main line |
| 72. W Reichenbach vs Parma |
| 0-1 | 28 | 1975 | FRG-ch International | E31 Nimzo-Indian, Leningrad, Main line |
| 73. Timman vs Razuvaev |
| 1-0 | 51 | 1975 | Amsterdam IBM | E31 Nimzo-Indian, Leningrad, Main line |
| 74. H Bohm vs Szabo |
| ½-½ | 19 | 1975 | Amsterdam IBM | E31 Nimzo-Indian, Leningrad, Main line |
| 75. Timman vs C Pritchett |
| 1-0 | 53 | 1975 | London | E31 Nimzo-Indian, Leningrad, Main line |
Kibitzing
