| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. I Kragelj vs N Illijin |
| 1-0 | 45 |
2001 |
open | E15 Queen's Indian |
| 27. D Pikula vs N Illijin |
| 1-0 | 50 |
2001 |
MTO | B40 Sicilian |
| 28. M Hussan vs N Illijin |
| 0-1 | 51 |
2001 |
ADCF Masters | A07 King's Indian Attack |
| 29. J Woolley vs N Illijin |
| 0-1 | 27 |
2001 |
open | E06 Catalan, Closed, 5.Nf3 |
| 30. S Fairbairn vs N Illijin |
| 0-1 | 37 |
2001 |
26th Keres Mem | B42 Sicilian, Kan |
| 31. I Ibrahim vs N Illijin |
| ½-½ | 64 |
2001 |
ADCF Masters | B22 Sicilian, Alapin |
| 32. N Illijin vs B Rogulj |
| 0-1 | 57 |
2001 |
open | A15 English |
| 33. N Illijin vs J Klovans |
| ½-½ | 31 |
2001 |
MTO | C92 Ruy Lopez, Closed |
| 34. N Illijin vs A Hamad |
| 0-1 | 53 |
2001 |
ADCF Masters | B14 Caro-Kann, Panov-Botvinnik Attack |
| 35. N Illijin vs J Novak |
| ½-½ | 45 |
2001 |
open | B70 Sicilian, Dragon Variation |
| 36. N Illijin vs E Chapman |
| ½-½ | 32 |
2001 |
26th Keres Mem | B33 Sicilian |
| 37. N Illijin vs M Dzhumaev |
| 0-1 | 40 |
2001 |
ADCF Masters | B06 Robatsch |
| 38. J Prestrl vs N Illijin |
| 0-1 | 50 |
2001 |
open | B22 Sicilian, Alapin |
| 39. N Illijin vs F Jenni |
| 0-1 | 45 |
2001 |
MTO | C84 Ruy Lopez, Closed |
| 40. N Illijin vs Khalid AlShaali |
| ½-½ | 38 |
2001 |
ADCF Masters | B32 Sicilian |
| 41. M Dobrotka vs N Illijin |
| 1-0 | 26 |
2001 |
open | E12 Queen's Indian |
| 42. G Huber vs N Illijin |
| 1-0 | 40 |
2001 |
26th Keres Mem | B23 Sicilian, Closed |
| 43. H Rasch vs N Illijin |
| 1-0 | 26 |
2001 |
MTO | B40 Sicilian |
| 44. N Illijin vs Ho Mohamed |
| ½-½ | 18 |
2001 |
ADCF Masters | B27 Sicilian |
| 45. Juni Caluza vs N Illijin |
| 0-1 | 26 |
2001 |
26th Keres Mem | E15 Queen's Indian |
| 46. H Toomanian vs N Illijin |
| ½-½ | 50 |
2001 |
ADCF Masters | B22 Sicilian, Alapin |
| 47. N Illijin vs E Senoner |
| 1-0 | 32 |
2001 |
open | C42 Petrov Defense |
| 48. K Kappeler vs N Illijin |
| 1-0 | 40 |
2005 |
Swiss Championships | E32 Nimzo-Indian, Classical |
| 49. M Urosevic vs N Illijin |
| 1-0 | 59 |
2005 |
18th Belgrade Trophy | E47 Nimzo-Indian, 4.e3 O-O 5.Bd3 |
| 50. F Peralta vs N Illijin |
| 1-0 | 36 |
2005 |
III Open Bajada de la Virgen | E42 Nimzo-Indian, 4.e3 c5, 5.Ne2 (Rubinstein) |