| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. L Popov vs N Kirov |
| ½-½ | 12 | 1971 | Bulgarian Championship | D94 Grunfeld |
| 27. P Arnaudov vs N Kirov |
| 1-0 | 41 | 1971 | Bulgarian Championship | A15 English |
| 28. Z Kerchev vs N Kirov |
| ½-½ | 14 | 1971 | Bulgarian Championship | B44 Sicilian |
| 29. N Kirov vs E Ermenkov |
| 1-0 | 60 | 1971 | Bulgarian Championship | B73 Sicilian, Dragon, Classical |
| 30. N Minev vs N Kirov |
| ½-½ | 14 | 1971 | Bulgarian Championship | B22 Sicilian, Alapin |
| 31. L Pipkov vs N Kirov |
| ½-½ | 40 | 1971 | Bulgarian Championship | D86 Grunfeld, Exchange |
| 32. N Kirov vs K Angelov |
| 1-0 | 39 | 1971 | Bulgarian Championship | A15 English |
| 33. N Kirov vs S Bohosjan |
| ½-½ | 14 | 1971 | Bulgarian Championship | E66 King's Indian, Fianchetto, Yugoslav Panno |
| 34. N Kirov vs K Tomov |
| 1-0 | 32 | 1971 | Bulgarian Championship | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 35. N Padevsky vs N Kirov |
| ½-½ | 8 | 1971 | Varna | A45 Queen's Pawn Game |
| 36. N Kirov vs Vasiukov |
| 0-1 | 38 | 1971 | Varna | B02 Alekhine's Defense |
| 37. L Popov vs N Kirov |
| ½-½ | 20 | 1971 | Varna | D90 Grunfeld |
| 38. M Damjanovic vs N Kirov |
| ½-½ | 15 | 1971 | Varna | B83 Sicilian |
| 39. Gheorghiu vs N Kirov |
| ½-½ | 15 | 1971 | Varna | A15 English |
| 40. S Nikolic vs N Kirov |
| ½-½ | 88 | 1971 | Varna | B29 Sicilian, Nimzovich-Rubinstein |
| 41. N Kirov vs M Basman |
| ½-½ | 75 | 1971 | Varna | B32 Sicilian |
| 42. N Kirov vs N Minev |
| ½-½ | 19 | 1971 | Varna | E17 Queen's Indian |
| 43. Smejkal vs N Kirov |
| 1-0 | 29 | 1971 | Varna | D43 Queen's Gambit Declined Semi-Slav |
| 44. N Kirov vs A Kolarov |
| ½-½ | 18 | 1971 | Varna | C25 Vienna |
| 45. Bobotsov vs N Kirov |
| ½-½ | 20 | 1971 | Varna | D94 Grunfeld |
| 46. N Kirov vs I Radulov |
| ½-½ | 17 | 1971 | Varna | B08 Pirc, Classical |
| 47. P Peev vs N Kirov |
| ½-½ | 17 | 1971 | Varna | D85 Grunfeld |
| 48. N Kirov vs L Spassov |
| ½-½ | 46 | 1971 | Varna | B57 Sicilian |
| 49. P Arnaudov vs N Kirov |
| 0-1 | 47 | 1972 | Bulgarian Championship | A15 English |
| 50. N Kirov vs S Bohosjan |
| ½-½ | 30 | 1972 | Bulgarian Championship | B06 Robatsch |
Kibitzing
