| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. M Cebalo vs Vadasz |
| ½-½ | 47 |
1966 |
Orebro Stud olm fA | A55 Old Indian, Main line |
| 27. E Cobo Arteaga vs M Bobotsov |
| ½-½ | 48 |
1966 |
La Habana ol (Men) fin-A | A55 Old Indian, Main line |
| 28. G Sigurjonsson vs Vasiukov |
| ½-½ | 38 |
1966 |
Reykjavik | A55 Old Indian, Main line |
| 29. I Nei vs Vasiukov |
| ½-½ | 63 |
1966 |
USSR Championship 1966/67 | A55 Old Indian, Main line |
| 30. A J Whiteley vs Vadasz |
| ½-½ | 41 |
1966 |
EU-ch U20 fin-A | A55 Old Indian, Main line |
| 31. Uhlmann vs V Liberzon |
| ½-½ | 18 |
1967 |
Zinnowitz GER | A55 Old Indian, Main line |
| 32. Gligoric vs L Barczay |
 | ½-½ | 64 |
1967 |
Sousse Interzonal | A55 Old Indian, Main line |
| 33. V Liberzon vs Cherepkov |
| ½-½ | 35 |
1968 |
USSR Championship 1968/69 | A55 Old Indian, Main line |
| 34. J H Donner vs Schmid |
| ½-½ | 24 |
1968 |
Bamberg | A55 Old Indian, Main line |
| 35. J H Donner vs Lombardy |
| ½-½ | 43 |
1969 |
Beverwijk (Netherlands) | A55 Old Indian, Main line |
| 36. O'Kelly vs Schmid |
| ½-½ | 26 |
1969 |
San Juan (Puerto Rico) | A55 Old Indian, Main line |
| 37. Filip vs Schmid |
| ½-½ | 18 |
1969 |
GER-CSR m | A55 Old Indian, Main line |
| 38. S Tatai vs Rossolimo |
| ½-½ | 57 |
1970 |
Malaga ESP | A55 Old Indian, Main line |
| 39. Panno vs J Agdamus |
| ½-½ | 38 |
1970 |
Buenos Aires | A55 Old Indian, Main line |
| 40. J Diez del Corral vs Hug |
| ½-½ | 35 |
1973 |
Las Palmas It | A55 Old Indian, Main line |
| 41. B Starck vs L Espig |
| ½-½ | 43 |
1974 |
Potsdam ch-DDR | A55 Old Indian, Main line |
| 42. L Gutman vs Dzindzichashvili |
| ½-½ | 38 |
1975 |
USSR | A55 Old Indian, Main line |
| 43. I Nei vs L Espig |
| ½-½ | 20 |
1975 |
Tallinn | A55 Old Indian, Main line |
| 44. E Kristiansen vs J Bielczyk |
| ½-½ | 15 |
1975 |
Polanica Zdroj | A55 Old Indian, Main line |
| 45. E Gereben vs H Wirthensohn |
| ½-½ | 14 |
1976 |
Sandomierz Vitrobud op | A55 Old Indian, Main line |
| 46. W Schmidt vs K Pytel |
| ½-½ | 56 |
1976 |
POL-ch 33th | A55 Old Indian, Main line |
| 47. V Tukmakov vs Gulko |
| ½-½ | 20 |
1977 |
Baku URS sf | A55 Old Indian, Main line |
| 48. Quinteros vs Vogt |
| ½-½ | 35 |
1977 |
Polanica Zdroj (Poland) | A55 Old Indian, Main line |
| 49. I Lipnowski vs L Day |
| ½-½ | 23 |
1978 |
Toronto zt | A55 Old Indian, Main line |
| 50. Ftacnik vs I Hausner |
| ½-½ | 33 |
1978 |
Ch Czechoslovakia, Marianske Lazne (Czech Repub | A55 Old Indian, Main line |