| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. A Vaulin vs N Nikolaev |
| 1-0 | 27 | 2000 | Petrov Memorial Open | E63 King's Indian, Fianchetto, Panno Variation |
| 27. N Nikolaev vs M Ustinov |
| 0-1 | 55 | 2000 | Petrov Memorial Open | D03 Torre Attack (Tartakower Variation) |
| 28. M Rogovoi vs N Nikolaev |
| ½-½ | 63 | 2000 | Petrov Memorial Open | A00 Uncommon Opening |
| 29. E Sazhin vs N Nikolaev |
| 0-1 | 52 | 2000 | Petrov Memorial Open | E93 King's Indian, Petrosian System |
| 30. N Nikolaev vs S Solovjov |
| ½-½ | 8 | 2000 | Petrov Memorial Open | E92 King's Indian |
| 31. V Takhirov vs N Nikolaev |
| 0-1 | 65 | 2000 | Petrov Memorial Open | B45 Sicilian, Taimanov |
| 32. N Nikolaev vs G Tunik |
| 0-1 | 46 | 2000 | Petrov Memorial Open | D03 Torre Attack (Tartakower Variation) |
| 33. A Lugovoi vs N Nikolaev |
| 1-0 | 34 | 2000 | Chigorin Memorial Open | E93 King's Indian, Petrosian System |
| 34. N Nikolaev vs K Zhukov |
| 0-1 | 42 | 2000 | Chigorin Memorial Open | A48 King's Indian |
| 35. N Grunina vs N Nikolaev |
| 0-1 | 91 | 2000 | Chigorin Memorial Open | E94 King's Indian, Orthodox |
| 36. N Nikolaev vs O Taranenko |
| 0-1 | 42 | 2000 | Chigorin Memorial Open | A45 Queen's Pawn Game |
| 37. A Schepelin vs N Nikolaev |
| ½-½ | 41 | 2000 | Chigorin Memorial Open | B01 Scandinavian |
| 38. N Nikolaev vs I Gaponenko |
| ½-½ | 44 | 2000 | Chigorin Memorial Open | A48 King's Indian |
| 39. A Smelov vs N Nikolaev |
| 0-1 | 41 | 2000 | Chigorin Memorial Open | A15 English |
| 40. N Nikolaev vs N Maiorov |
| 1-0 | 60 | 2000 | Chigorin Memorial Open | D03 Torre Attack (Tartakower Variation) |
| 41. G Tunik vs N Nikolaev |
| ½-½ | 51 | 2000 | Chigorin Memorial Open | E63 King's Indian, Fianchetto, Panno Variation |
| 42. V Malaniuk vs N Nikolaev |
| 1-0 | 34 | 2001 | RUS-Cup | E62 King's Indian, Fianchetto |
| 43. A Timofeev vs N Nikolaev |
| 1-0 | 38 | 2001 | White Nights | B45 Sicilian, Taimanov |
| 44. N Nikolaev vs Y Karpova |
| 1-0 | 39 | 2001 | White Nights | A01 Nimzovich-Larsen Attack |
| 45. N Nikolaev vs V Yemelin |
| 0-1 | 42 | 2001 | White Nights | A04 Reti Opening |
| 46. Y Vaingorten vs N Nikolaev |
| ½-½ | 29 | 2001 | White Nights | E94 King's Indian, Orthodox |
| 47. N Nikolaev vs G Golovchenko |
| ½-½ | 40 | 2001 | White Nights | E15 Queen's Indian |
| 48. M Zvereva vs N Nikolaev |
 | 0-1 | 43 | 2001 | White Nights | B01 Scandinavian |
| 49. N Nikolaev vs Potkin |
| ½-½ | 73 | 2001 | White Nights | A01 Nimzovich-Larsen Attack |
| 50. V M Kozlov vs N Nikolaev |
 | 0-1 | 39 | 2001 | White Nights | B40 Sicilian |
Kibitzing
