| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. L Schandorff vs J A Nilssen |
| 1-0 | 34 | 1996 | Politiken Cup | E12 Queen's Indian |
| 27. J A Nilssen vs P A Rasmussen |
| 1-0 | 21 | 1996 | Politiken Cup | D09 Queen's Gambit Declined, Albin Counter Gambit, 5.g3 |
| 28. Macieja vs J A Nilssen |
| ½-½ | 35 | 1996 | Politiken Cup | B32 Sicilian |
| 29. J A Nilssen vs J Carstensen |
| 0-1 | 39 | 1996 | Politiken Cup | E17 Queen's Indian |
| 30. L Kristensen vs J A Nilssen |
| 0-1 | 53 | 1996 | Politiken Cup | A46 Queen's Pawn Game |
| 31. J A Nilssen vs J Hellsten |
| ½-½ | 69 | 1996 | Politiken Cup | E04 Catalan, Open, 5.Nf3 |
| 32. C Hoi vs J A Nilssen |
| ½-½ | 50 | 1996 | Politiken Cup | D02 Queen's Pawn Game |
| 33. J A Nilssen vs E Jelling |
| 1-0 | 37 | 1996 | Politiken Cup | D15 Queen's Gambit Declined Slav |
| 34. J Tisdall vs J A Nilssen |
| 1-0 | 26 | 1996 | Politiken Cup | B22 Sicilian, Alapin |
| 35. J A Nilssen vs O Jakobsen |
| ½-½ | 29 | 1996 | Politiken Cup | E00 Queen's Pawn Game |
| 36. G Welling vs J A Nilssen |
 | 1-0 | 28 | 1997 | Taastrup jubilee | A85 Dutch, with c4 & Nc3 |
| 37. T Bromann vs J A Nilssen |
| 1-0 | 32 | 1997 | Tastrup 25 Jubilee | B30 Sicilian |
| 38. J Markos vs J A Nilssen |
| ½-½ | 61 | 1997 | Koge Open | A86 Dutch |
| 39. J A Nilssen vs B Jorgensen |
| 1-0 | 41 | 1997 | Koge Open | E01 Catalan, Closed |
| 40. Oll vs J A Nilssen |
| 1-0 | 25 | 1997 | Koge Open | A81 Dutch |
| 41. J A Nilssen vs N P Nielsen |
| 1-0 | 35 | 1997 | Koge Open | A56 Benoni Defense |
| 42. L B Hansen vs J A Nilssen |
| 1-0 | 43 | 1997 | Koge Open | A81 Dutch |
| 43. J A Nilssen vs F Preuss |
| 1-0 | 45 | 1997 | Koge Open | A81 Dutch |
| 44. J Hector vs J A Nilssen |
| 1-0 | 64 | 1997 | Koge Open | B30 Sicilian |
| 45. J A Nilssen vs A Bang |
| 0-1 | 54 | 1997 | Koge Open | D11 Queen's Gambit Declined Slav |
| 46. J A Nilssen vs B G Christensen |
| 1-0 | 53 | 1997 | Koge Open | D70 Neo-Grunfeld Defense |
| 47. H A Gretarsson vs J A Nilssen |
| 1-0 | 27 | 1997 | Nordic-ch VISA | A80 Dutch |
| 48. J A Nilssen vs T Thorhallsson |
| ½-½ | 51 | 1997 | Nordic-ch VISA | A58 Benko Gambit |
| 49. J Sorensen vs J A Nilssen |
| 0-1 | 28 | 1998 | Politiken Cup | B21 Sicilian, 2.f4 and 2.d4 |
| 50. J A Nilssen vs P Rosen |
| 1-0 | 32 | 1998 | Politiken Cup | A57 Benko Gambit |
Kibitzing
