| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. H van Steenis vs O'Kelly |
| 0-1 | 40 | 1946 | Hoogovens | C27 Vienna Game |
| 27. H van Steenis vs T van Scheltinga |
| ½-½ | 35 | 1946 | Hoogovens | C53 Giuoco Piano |
| 28. G Fontein vs H van Steenis |
 | 1-0 | 27 | 1946 | NED-ch prelim I | D28 Queen's Gambit Accepted, Classical |
| 29. H van Steenis vs Euwe |
| 0-1 | 34 | 1946 | NED-ch prelim I | B70 Sicilian, Dragon Variation |
| 30. H van Steenis vs C van den Berg |
| 1-0 | 47 | 1946 | NED-ch prelim I | B70 Sicilian, Dragon Variation |
| 31. L Stumpers vs H van Steenis |
| 0-1 | 24 | 1946 | NED-ch prelim I | D28 Queen's Gambit Accepted, Classical |
| 32. H van Steenis vs N Cortlever |
| ½-½ | 36 | 1946 | NED-ch prelim I | C58 Two Knights |
| 33. W Wolthuis vs H van Steenis |
| 1-0 | 37 | 1946 | NED-ch prelim I | A13 English |
| 34. H van Steenis vs J H Marwitz |
| ½-½ | 20 | 1946 | NED-ch prelim I | B13 Caro-Kann, Exchange |
| 35. Y Porat vs H van Steenis |
| 0-1 | 32 | 1947 | Hilversum | D29 Queen's Gambit Accepted, Classical |
| 36. H van Steenis vs T Wechsler |
| 1-0 | 7 | 1947 | Hastings Prem Reserves A 1946/47 | C01 French, Exchange |
| 37. H Grob vs H van Steenis |
| 1-0 | 27 | 1947 | Baarn Group B | B18 Caro-Kann, Classical |
| 38. H van Steenis vs L Prins |
| 0-1 | 17 | 1947 | Baarn Group B | C50 Giuoco Piano |
| 39. L Stumpers vs H van Steenis |
| 0-1 | 33 | 1947 | Baarn Group B | D23 Queen's Gambit Accepted |
| 40. H van Steenis vs G Fontein |
| 1-0 | 33 | 1947 | Baarn Group B | C50 Giuoco Piano |
| 41. H van Steenis vs Tartakower |
| 0-1 | 26 | 1947 | Baarn Group B | C29 Vienna Gambit |
| 42. F Zita vs H van Steenis |
| 1-0 | 39 | 1947 | Netherlands - Czechoslovakia | A16 English |
| 43. H van Steenis vs F Zita |
| ½-½ | 42 | 1947 | Netherlands - Czechoslovakia | B13 Caro-Kann, Exchange |
| 44. L Prins vs H van Steenis |
| 1-0 | 36 | 1948 | Hoogovens | B13 Caro-Kann, Exchange |
| 45. H van Steenis vs Rossolimo |
| 1-0 | 66 | 1948 | Hoogovens | B84 Sicilian, Scheveningen |
| 46. F Henneberke vs H van Steenis |
| 0-1 | 40 | 1948 | Hoogovens | A08 King's Indian Attack |
| 47. H van Steenis vs H Kramer |
| ½-½ | 52 | 1948 | Hoogovens | B58 Sicilian |
| 48. H van Steenis vs O'Kelly |
| 0-1 | 23 | 1948 | Hoogovens | C53 Giuoco Piano |
| 49. C Kottnauer vs H van Steenis |
| 0-1 | 25 | 1948 | Hoogovens | D45 Queen's Gambit Declined Semi-Slav |
| 50. F Kitto vs H van Steenis |
| 0-1 | 40 | 1948 | ENG-NED | B18 Caro-Kann, Classical |
Kibitzing
