| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. M Bosman vs N Ristic |
| ½-½ | 53 | 1989 | Groningen Open | B22 Sicilian, Alapin |
| 27. F Krudde vs M Bosman |
| ½-½ | 56 | 1989 | Groningen Open | A00 Uncommon Opening |
| 28. M Bosman vs J Mestel |
| ½-½ | 32 | 1989 | Groningen Open | B08 Pirc, Classical |
| 29. W Zagema vs M Bosman |
| 1-0 | 29 | 1989 | Groningen Open | C01 French, Exchange |
| 30. G Pieterse vs M Bosman |
| 0-1 | 46 | 1989 | Groningen Open | E25 Nimzo-Indian, Samisch |
| 31. M Bosman vs B Finegold |
| ½-½ | 37 | 1990 | Dutch Open | C42 Petrov Defense |
| 32. Bagirov vs M Bosman |
| 1-0 | 66 | 1990 | Dutch Open | A01 Nimzovich-Larsen Attack |
| 33. M Bosman vs M Jonker |
| ½-½ | 39 | 1990 | Dutch Open | B43 Sicilian, Kan, 5.Nc3 |
| 34. S van Gisbergen vs M Bosman |
| 0-1 | 53 | 1990 | Dutch Open | E32 Nimzo-Indian, Classical |
| 35. M Bosman vs O Rubingh |
| 1-0 | 55 | 1990 | Dutch Open | C04 French, Tarrasch, Guimard Main line |
| 36. K Langeweg vs M Bosman |
 | 0-1 | 39 | 1990 | Dutch Open | D39 Queen's Gambit Declined, Ragozin, Vienna Variation |
| 37. M Bosman vs I Farago |
| 0-1 | 47 | 1990 | Dutch Open | C05 French, Tarrasch |
| 38. K Ninov vs M Bosman |
| 1-0 | 65 | 1990 | Dutch Open | A06 Reti Opening |
| 39. M Bosman vs N Ristic |
| ½-½ | 6 | 1990 | Dutch Open | B40 Sicilian |
| 40. P Boersma vs M Bosman |
| 1-0 | 48 | 1993 | NED-chT | A14 English |
| 41. M Bosman vs A Lont |
| 1-0 | 37 | 1993 | NED-chT | B40 Sicilian |
| 42. G Welling vs M Bosman |
| ½-½ | 71 | 1994 | KNSB league | C15 French, Winawer |
| 43. Barsov vs M Bosman |
| 1-0 | 33 | 1996 | NED-chT 1996/97 | E21 Nimzo-Indian, Three Knights |
| 44. H Jonkman vs M Bosman |
| 1-0 | 50 | 2001 | Utrecht OKU I op | C02 French, Advance |
| 45. M Feygin vs M Bosman |
| ½-½ | 22 | 2001 | NED-chT | C01 French, Exchange |
| 46. Stellwagen vs M Bosman |
| ½-½ | 50 | 2001 | NED-chT | C60 Ruy Lopez |
| 47. M Bosman vs P Smirnov |
| 0-1 | 32 | 2005 | European Club Cup | C55 Two Knights Defense |
| 48. M Bosman vs J Wendt |
| 1-0 | 70 | 2005 | European Club Cup | B06 Robatsch |
| 49. J Aulin-Jansson vs M Bosman |
| ½-½ | 87 | 2005 | European Club Cup | D39 Queen's Gambit Declined, Ragozin, Vienna Variation |
| 50. M Bosman vs S D Sigfusson |
| 1-0 | 29 | 2005 | European Club Cup | C47 Four Knights |
Kibitzing
