| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. M Nielsen vs I Dorup |
| ½-½ | 25 | 2004 | North Sea Cup | C02 French, Advance |
| 52. M Nielsen vs F O Moller |
| 1-0 | 45 | 2004 | Politiken Cup | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
| 53. M Nielsen vs de Firmian |
| 0-1 | 40 | 2004 | Politiken Cup | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 54. J Henrichsen vs M Nielsen |
| 0-1 | 52 | 2004 | Politiken Cup | E94 King's Indian, Orthodox |
| 55. A D Olsen vs M Nielsen |
| ½-½ | 38 | 2004 | Politiken Cup | B22 Sicilian, Alapin |
| 56. M Nielsen vs S Jensen |
| 1-0 | 26 | 2004 | Politiken Cup | A42 Modern Defense, Averbakh System |
| 57. A Vul vs M Nielsen |
| 1-0 | 43 | 2004 | Politiken Cup | A04 Reti Opening |
| 58. M Nielsen vs B H Nielsen |
| 1-0 | 63 | 2004 | Politiken Cup | B12 Caro-Kann Defense |
| 59. C Holst vs M Nielsen |
| ½-½ | 35 | 2004 | Politiken Cup | A57 Benko Gambit |
| 60. M Nielsen vs E Forsaa |
| 1-0 | 20 | 2004 | Politiken Cup | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
| 61. A Holst vs M Nielsen |
| ½-½ | 42 | 2004 | Politiken Cup | A57 Benko Gambit |
| 62. P Dalberg vs M Nielsen |
| ½-½ | 29 | 2005 | Nordea Cup | A20 English |
| 63. M Nielsen vs H Olsen |
| 1-0 | 59 | 2005 | Nordea Cup | C92 Ruy Lopez, Closed |
| 64. I Rausis vs M Nielsen |
| 1-0 | 38 | 2005 | Nordea Cup | A20 English |
| 65. M Nielsen vs T Bromann |
| 1-0 | 39 | 2005 | Nordea Cup | C12 French, McCutcheon |
| 66. K Hovmoller vs M Nielsen |
| 1-0 | 32 | 2005 | Nordea Cup | A57 Benko Gambit |
| 67. M Nielsen vs N Miezis |
| 0-1 | 44 | 2005 | Nordea Cup | B42 Sicilian, Kan |
| 68. S Lund vs M Nielsen |
| 1-0 | 23 | 2005 | Nordea Cup | E73 King's Indian |
| 69. S E Christensen vs M Nielsen |
| ½-½ | 18 | 2005 | Nordea Cup | A80 Dutch |
| 70. M Nielsen vs F T Naes |
| ½-½ | 15 | 2005 | Nordea Cup | C65 Ruy Lopez, Berlin Defense |
| 71. P Nielsen vs M Nielsen |
| 0-1 | 31 | 2005 | Politiken Cup | A48 King's Indian |
| 72. Korchnoi vs M Nielsen |
 | 1-0 | 28 | 2005 | Politiken Cup | E73 King's Indian |
| 73. M Nielsen vs T Skovgaard |
| 1-0 | 38 | 2005 | Politiken Cup | B03 Alekhine's Defense |
| 74. M Nielsen vs J Hansen |
| 1-0 | 33 | 2005 | Politiken Cup | B33 Sicilian |
| 75. L K Nilsson vs M Nielsen |
| ½-½ | 23 | 2005 | Politiken Cup | B33 Sicilian |
Kibitzing
