| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. M Nacu vs T Ghitescu |
| ½-½ | 47 | 1965 | Romanian Championship | D25 Queen's Gambit Accepted |
| 52. B Soos vs M Nacu |
| ½-½ | 23 | 1965 | Romanian Championship | A20 English |
| 53. M Suta vs M Nacu |
| ½-½ | 13 | 1965 | Romanian Championship | A48 King's Indian |
| 54. C Partos vs M Nacu |
| 1-0 | 36 | 1965 | Romanian Championship | E71 King's Indian, Makagonov System (5.h3) |
| 55. M Nacu vs Gheorghiu |
| ½-½ | 24 | 1965 | Romanian Championship | D14 Queen's Gambit Declined Slav, Exchange Variation |
| 56. S Neamtu vs M Nacu |
| ½-½ | 20 | 1965 | Romanian Championship | B67 Sicilian, Richter-Rauzer Attack, 7...a6 Defense, 8...Bd7 |
| 57. M Nacu vs G Mititelu |
| ½-½ | 29 | 1965 | Romanian Championship | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |
| 58. M Nacu vs V Georgescu |
| 1-0 | 34 | 1965 | Romanian Championship | E55 Nimzo-Indian, 4.e3, Gligoric System, Bronstein Variation |
| 59. M Nacu vs A Negulescu |
| 0-1 | 34 | 2005 | Romanian Team Championship | A56 Benoni Defense |
Kibitzing
