| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. M Herink vs F Blatny |
| 1-0 | 38 |
1957 |
Bratislava | E59 Nimzo-Indian, 4.e3, Main line |
| 27. Bisguier vs K Smith |
| 1-0 | 50 |
1957 |
58th US Open | E59 Nimzo-Indian, 4.e3, Main line |
| 28. R Toran Albero vs E Franco Raymundo |
| 1-0 | 73 |
1957 |
Madrid | E59 Nimzo-Indian, 4.e3, Main line |
| 29. J de Souza Mendes vs Shocron |
| 1-0 | 46 |
1959 |
Mar del Plata | E59 Nimzo-Indian, 4.e3, Main line |
| 30. Korchnoi vs De Miguel, C |
| 1-0 | 29 |
1960 |
Cordoba | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 31. Mecking vs Panno |
 | 1-0 | 51 |
1966 |
Rio Hondo ARG | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 32. M J Freeman vs E Suwandhio |
| ½-½ | 45 |
1966 |
Olympiad | E58 Nimzo-Indian, 4.e3, Main line with 8...Bxc3 |
| 33. J Diez del Corral vs O'Kelly |
| 0-1 | 44 |
1967 |
Palma de Mallorca | E59 Nimzo-Indian, 4.e3, Main line |
| 34. Gligoric vs O'Kelly |
| ½-½ | 19 |
1967 |
Dundee (England) | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 35. M Haygarth vs Golombek |
| ½-½ | 13 |
1967 |
BCF-ch | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 36. O'Kelly vs N Pardo |
| 1-0 | 40 |
1969 |
Olot (Spain) | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 37. Gipslis vs Szabo |
| 1-0 | 51 |
1969 |
Tallinn it | E59 Nimzo-Indian, 4.e3, Main line |
| 38. A Ludgate vs D Wright |
| ½-½ | 25 |
1971 |
BCF-ch | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 39. Podgaets vs Anikaev |
| 1-0 | 49 |
1972 |
URS-ch sf | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 40. Portisch vs Larsen |
 | 1-0 | 47 |
1972 |
Las Palmas | E56 Nimzo-Indian, 4.e3, Main line with 7...Nc6 |
| 41. B Rytov vs Spassky |
| ½-½ | 31 |
1975 |
Tallinn (Estonia) | E59 Nimzo-Indian, 4.e3, Main line |
| 42. G Borisenko vs Z Sturua |
| 1-0 | 42 |
1975 |
URS-ch otbor | E58 Nimzo-Indian, 4.e3, Main line with 8...Bxc3 |
| 43. Gligoric vs G Sigurjonsson |
| ½-½ | 44 |
1977 |
Ljubljana/Portoroz | E58 Nimzo-Indian, 4.e3, Main line with 8...Bxc3 |
| 44. Portisch vs Spassky |
| ½-½ | 36 |
1977 |
Geneve | E59 Nimzo-Indian, 4.e3, Main line |
| 45. Hort vs Spassky |
| ½-½ | 42 |
1977 |
Reykjavik cm qf | E59 Nimzo-Indian, 4.e3, Main line |
| 46. Portisch vs Spassky |
| ½-½ | 26 |
1977 |
Geneve | E59 Nimzo-Indian, 4.e3, Main line |
| 47. Portisch vs Sosonko |
| 1-0 | 38 |
1978 |
Tilburg | E59 Nimzo-Indian, 4.e3, Main line |
| 48. J H Donner vs Sosonko |
| ½-½ | 18 |
1979 |
Leeuwarden NED ch | E59 Nimzo-Indian, 4.e3, Main line |
| 49. Podgaets vs Romanishin |
| 1-0 | 49 |
1979 |
URS | E59 Nimzo-Indian, 4.e3, Main line |
| 50. Spassky vs Sosonko |
| ½-½ | 19 |
1980 |
Tilburg | E59 Nimzo-Indian, 4.e3, Main line |