| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. N Gaprindashvili vs Keene |
 | 1-0 | 77 |
1974 |
Tbilisi | B09 Pirc, Austrian Attack |
| 27. R Hoen vs P Stuart |
| ½-½ | 22 |
1974 |
21st Olympiad | B09 Pirc, Austrian Attack |
| 28. J C Diaz vs Keene |
| 0-1 | 16 |
1974 |
Capablanca mem-B | B09 Pirc, Austrian Attack |
| 29. A Filipowicz vs R Drozd |
 | 1-0 | 54 |
1974 |
POL ch | B09 Pirc, Austrian Attack |
| 30. J Kristiansen vs Miles |
 | 1-0 | 40 |
1974 |
Teesside | B09 Pirc, Austrian Attack |
| 31. Balashov vs Tseshkovsky |
| ½-½ | 24 |
1974 |
USSR Championship | B09 Pirc, Austrian Attack |
| 32. D C Brookes vs J Hardinge |
| 0-1 | 28 |
1974 |
PCL Major I | B09 Pirc, Austrian Attack |
| 33. Adorjan vs H Pfleger |
| 1-0 | 37 |
1975 |
Lanzarote | B09 Pirc, Austrian Attack |
| 34. Balashov vs G Sigurjonsson |
| ½-½ | 23 |
1975 |
Cienfuegos | B09 Pirc, Austrian Attack |
| 35. R Byrne vs G Sigurjonsson |
| ½-½ | 18 |
1976 |
Las Palmas | B09 Pirc, Austrian Attack |
| 36. L Kokkinos vs A Morris |
| 1-0 | 43 |
1976 |
W/EU-ch U20 7677 | B09 Pirc, Austrian Attack |
| 37. Timman vs G Sigurjonsson |
| 0-1 | 30 |
1977 |
Geneve | B09 Pirc, Austrian Attack |
| 38. C Van Wijgerden vs Timman |
| ½-½ | 48 |
1977 |
12, Amsterdam IBM | B09 Pirc, Austrian Attack |
| 39. G Sigurjonsson vs H Westerinen |
| 1-0 | 22 |
1977 |
Geneve | B09 Pirc, Austrian Attack |
| 40. V Small vs E Torre |
 | 1-0 | 25 |
1978 |
1st Burroughs Computers Grandmaster | B09 Pirc, Austrian Attack |
| 41. J Szmetan vs E Torre |
 | 1-0 | 41 |
1978 |
Buenos Aires (Argentina) | B09 Pirc, Austrian Attack |
| 42. J Sampouw vs C Hon |
 | 1-0 | 19 |
1978 |
Jakarta | B09 Pirc, Austrian Attack |
| 43. J Donaldson vs M Pein |
 | 0-1 | 41 |
1979 |
Lloyds Bank op 03rd | B09 Pirc, Austrian Attack |
| 44. Silman vs M Wilder |
 | ½-½ | 22 |
1979 |
Lone Pine | B09 Pirc, Austrian Attack |
| 45. Sax vs M Pein |
| 1-0 | 33 |
1980 |
Manchester Benedictine op | B09 Pirc, Austrian Attack |
| 46. Bronstein vs Pribyl |
| ½-½ | 17 |
1980 |
Tbilisi | B09 Pirc, Austrian Attack |
| 47. S Woelk vs R Storm |
 | 1-0 | 41 |
1981 |
Regionalliga Nord | B09 Pirc, Austrian Attack |
| 48. Chandler vs S Kindermann |
| 0-1 | 51 |
1981 |
Wiesbaden (Germany) | B09 Pirc, Austrian Attack |
| 49. Timman vs Spassky |
| 1-0 | 86 |
1981 |
It ( cat. 15 ) | B09 Pirc, Austrian Attack |
| 50. Timman vs C Van Wijgerden |
| ½-½ | 57 |
1983 |
Nederland (ch) 35/165 | B09 Pirc, Austrian Attack |