| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 76. J A Nilssen vs J M Nielsen |
| 1-0 | 24 | 2000 | Politiken Cup | A57 Benko Gambit |
| 77. L Petersen vs J A Nilssen |
| 0-1 | 31 | 2000 | Politiken Cup | A46 Queen's Pawn Game |
| 78. J A Nilssen vs C Erlandsen |
| 1-0 | 47 | 2000 | Politiken Cup | D90 Grunfeld |
| 79. S Brynell vs J A Nilssen |
| 1-0 | 51 | 2000 | Politiken Cup | B31 Sicilian, Rossolimo Variation |
| 80. J A Nilssen vs P Tjornsted |
| 1-0 | 45 | 2000 | Politiken Cup | B06 Robatsch |
| 81. O Simonsen vs J A Nilssen |
| 0-1 | 30 | 2000 | Politiken Cup | B31 Sicilian, Rossolimo Variation |
| 82. J A Nilssen vs Mikhalevski |
| 0-1 | 60 | 2000 | Politiken Cup | A57 Benko Gambit |
| 83. H Greiff vs J A Nilssen |
| 1-0 | 49 | 2000 | Politiken Cup | B30 Sicilian |
| 84. J A Nilssen vs H M Hansen |
| 1-0 | 16 | 2000 | Politiken Cup | D27 Queen's Gambit Accepted, Classical |
| 85. J A Nilssen vs A Baburin |
| 0-1 | 45 | 2000 | Torshavn op 3rd | D27 Queen's Gambit Accepted, Classical |
| 86. J A Nilssen vs V Babula Sr |
| 0-1 | 45 | 2000 | Istanbul Olympiad | E74 King's Indian, Averbakh, 6...c5 |
| 87. J A Nilssen vs Zaw Win Lay |
| 0-1 | 28 | 2000 | Istanbul Olympiad | E46 Nimzo-Indian |
| 88. M Erdogdu vs J A Nilssen |
| 0-1 | 34 | 2000 | Istanbul Olympiad | B32 Sicilian |
| 89. J A Nilssen vs T Dao |
| ½-½ | 30 | 2000 | Istanbul Olympiad | D47 Queen's Gambit Declined Semi-Slav |
| 90. Adianto vs J A Nilssen |
| ½-½ | 78 | 2000 | Istanbul Olympiad | E15 Queen's Indian |
| 91. J A Nilssen vs A S Rasmussen |
| 0-1 | 29 | 2001 | Troll Masters | A81 Dutch |
| 92. Carlsen vs J A Nilssen |
  | 0-1 | 22 | 2001 | Troll Masters | B32 Sicilian |
| 93. J A Nilssen vs Rozentalis |
| 0-1 | 40 | 2001 | Troll Masters | E53 Nimzo-Indian, 4.e3 |
| 94. J A Nilssen vs Kasparov |
| ½-½ | 26 | 2001 | Simul | D47 Queen's Gambit Declined Semi-Slav |
| 95. R Ostergaard vs J A Nilssen |
| 0-1 | 34 | 2001 | Holbak Tage Sorensen-mem | A16 English |
| 96. J A Nilssen vs J Carstensen |
| 1-0 | 24 | 2001 | Holbak Tage Sorensen-mem | E20 Nimzo-Indian |
| 97. E Hermansson vs J A Nilssen |
| 1-0 | 34 | 2001 | Tage Sorensen mem | B32 Sicilian |
| 98. J A Nilssen vs D Nielsen |
| 1-0 | 49 | 2001 | Politiken Cup | D90 Grunfeld |
| 99. O Hassan vs J A Nilssen |
| 0-1 | 27 | 2001 | Politiken Cup | B23 Sicilian, Closed |
| 100. J A Nilssen vs N Laursen |
| 1-0 | 28 | 2001 | Politiken Cup | E20 Nimzo-Indian |
Kibitzing
