| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. Bosboom-Lanchava vs Van der Wiel |
| 0-1 | 39 |
2001 |
Lost Boys Open | E10 Queen's Pawn Game |
| 27. M Sebag vs Bosboom-Lanchava |
| 1-0 | 30 |
2001 |
EuTChw | B07 Pirc |
| 28. E Sziva vs Bosboom-Lanchava |
 | ½-½ | 150 |
2001 |
ch-NED Women | B09 Pirc, Austrian Attack |
| 29. Bosboom-Lanchava vs P Schuurman |
| 1-0 | 61 |
2001 |
2nd ch-EUR Women | A57 Benko Gambit |
| 30. Bosboom-Lanchava vs J Gustafsson |
| ½-½ | 41 |
2001 |
Lost Boys Open | D91 Grunfeld, 5.Bg5 |
| 31. S Heyme vs Bosboom-Lanchava |
| 0-1 | 27 |
2001 |
Frauen Bundesliga -2 | B06 Robatsch |
| 32. C Otten vs Bosboom-Lanchava |
| 0-1 | 23 |
2001 |
ch-NED Women | A10 English |
| 33. A Muzychuk vs Bosboom-Lanchava |
 | 0-1 | 34 |
2001 |
2nd ch-EUR Women | A41 Queen's Pawn Game (with ...d6) |
| 34. A Riemens vs Bosboom-Lanchava |
| 0-1 | 67 |
2001 |
Lost Boys Open | B06 Robatsch |
| 35. H Puuska vs Bosboom-Lanchava |
| 0-1 | 28 |
2001 |
EuTChw | B06 Robatsch |
| 36. Bosboom-Lanchava vs B Muhren |
| ½-½ | 28 |
2001 |
ch-NED Women | E93 King's Indian, Petrosian System |
| 37. M Velcheva vs Bosboom-Lanchava |
| 1-0 | 76 |
2001 |
2nd ch-EUR Women | B30 Sicilian |
| 38. Bosboom-Lanchava vs P Schuurman |
| 1-0 | 47 |
2001 |
Lost Boys Open | A58 Benko Gambit |
| 39. U Heymann vs Bosboom-Lanchava |
| 0-1 | 33 |
2001 |
Frauen Bundesliga -2 | B06 Robatsch |
| 40. B Muhren vs Bosboom-Lanchava |
| 0-1 | 36 |
2001 |
ch-NED Women | B08 Pirc, Classical |
| 41. Bosboom-Lanchava vs K Toma |
 | 1-0 | 29 |
2001 |
2nd ch-EUR Women | A15 English |
| 42. Bosboom-Lanchava vs A Vogt |
| 1-0 | 42 |
2001 |
Lost Boys Open | D02 Queen's Pawn Game |
| 43. P Schuurman vs Bosboom-Lanchava |
| ½-½ | 56 |
2001 |
ch-NED Women | A41 Queen's Pawn Game (with ...d6) |
| 44. Bosboom-Lanchava vs A Bogza |
| 0-1 | 47 |
2001 |
2nd ch-EUR Women | A40 Queen's Pawn Game |
| 45. Jonkman vs Bosboom-Lanchava |
| 1-0 | 47 |
2001 |
Lost Boys Open | B09 Pirc, Austrian Attack |
| 46. S Nikoladze vs Bosboom-Lanchava |
| 0-1 | 79 |
2001 |
EuTChw | B06 Robatsch |
| 47. Bosboom-Lanchava vs T Vasilevich |
| ½-½ | 52 |
2002 |
Olympiad, women | D38 Queen's Gambit Declined, Ragozin Variation |
| 48. Khurtsidze vs Bosboom-Lanchava |
| 1-0 | 28 |
2002 |
Olympiad, women | A42 Modern Defense, Averbakh System |
| 49. Bosboom-Lanchava vs Pokorna |
| 0-1 | 33 |
2003 |
4th IECC, Women | D09 Queen's Gambit Declined, Albin Counter Gambit, 5.g3 |
| 50. Bosboom-Lanchava vs A Van Weersel |
| 1-0 | 62 |
2003 |
Dutch Womens Championships | D85 Grunfeld |