Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. J van den Bosch vs E Straat |
| 1-0 | 22 | 1929 | Dutch Championship | E21 Nimzo-Indian, Three Knights |
27. Euwe vs J van den Bosch |
 | 1-0 | 24 | 1929 | Dutch Championship | D52 Queen's Gambit Declined |
28. J van den Bosch vs Capablanca |
  | 0-1 | 33 | 1929 | Budapest | B13 Caro-Kann, Exchange |
29. Colle vs J van den Bosch |
| 0-1 | 52 | 1929 | Budapest | D04 Queen's Pawn Game |
30. J van den Bosch vs K Havasi |
| ½-½ | 56 | 1929 | Budapest | D51 Queen's Gambit Declined |
31. M Monticelli vs J van den Bosch |
 | ½-½ | 26 | 1929 | Budapest | D30 Queen's Gambit Declined |
32. J van den Bosch vs L Prokes |
 | 0-1 | 49 | 1929 | Budapest | D50 Queen's Gambit Declined |
33. Rubinstein vs J van den Bosch |
 | 1-0 | 31 | 1929 | Budapest | D74 Neo-Grunfeld, 6.cd Nxd5, 7.O-O |
34. J van den Bosch vs E Steiner |
| 0-1 | 32 | 1929 | Budapest | E38 Nimzo-Indian, Classical, 4...c5 |
35. Tartakower vs J van den Bosch |
| 1-0 | 37 | 1929 | Budapest | D37 Queen's Gambit Declined |
36. J van den Bosch vs G Thomas |
| 1-0 | 30 | 1929 | Budapest | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |
37. A Vajda vs J van den Bosch |
| 1-0 | 35 | 1929 | Budapest | D02 Queen's Pawn Game |
38. J van den Bosch vs D Przepiorka |
| 1-0 | 58 | 1929 | Budapest | C98 Ruy Lopez, Closed, Chigorin |
39. J van den Bosch vs A Brinckmann |
| 0-1 | 66 | 1929 | Budapest | D10 Queen's Gambit Declined Slav |
40. E Canal vs J van den Bosch |
| ½-½ | 71 | 1929 | Budapest | B01 Scandinavian |
41. J van den Bosch vs G Kroone |
| ½-½ | 36 | 1930 | Keus Cup | C47 Four Knights |
42. J van den Bosch vs Noteboom |
 | 0-1 | 27 | 1930 | The Hague | B58 Sicilian |
43. Euwe vs J van den Bosch |
| 1-0 | 28 | 1930 | DD-ASC | D30 Queen's Gambit Declined |
44. J van den Bosch vs Spielmann |
 | ½-½ | 37 | 1930 | Amsterdam Sextangular | C63 Ruy Lopez, Schliemann Defense |
45. H Weenink vs J van den Bosch |
| 1-0 | 32 | 1930 | Amsterdam Sextangular | C11 French |
46. S Landau vs J van den Bosch |
 | 1-0 | 52 | 1930 | Amsterdam Sextangular | D72 Neo-Grunfeld, 5.cd, Main line |
47. J van den Bosch vs J Addicks |
| ½-½ | 37 | 1930 | Amsterdam Sextangular | D37 Queen's Gambit Declined |
48. Euwe vs J van den Bosch |
| ½-½ | 33 | 1930 | Amsterdam Sextangular | A52 Budapest Gambit |
49. Maroczy vs J van den Bosch |
 | 0-1 | 40 | 1930 | Maroczy - Van den Bosch | B01 Scandinavian |
50. J van den Bosch vs Rubinstein |
| 0-1 | 28 | 1930 | Van den Bosch - Rubinstein | C72 Ruy Lopez, Modern Steinitz Defense, 5.O-O |