| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. S Landau vs T ten Kate |
 | 1-0 | 20 | 1929 | Rotterdam | D63 Queen's Gambit Declined, Orthodox Defense |
| 52. S Landau vs Euwe |
| 0-1 | 33 | 1929 | ASC-VAS | D52 Queen's Gambit Declined |
| 53. S Landau vs E Straat |
| ½-½ | 37 | 1929 | Dutch Championship | D67 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
| 54. Euwe vs S Landau |
| 1-0 | 36 | 1929 | Dutch Championship | D05 Queen's Pawn Game |
| 55. S Landau vs H Weenink |
| ½-½ | 44 | 1929 | Dutch Championship | D45 Queen's Gambit Declined Semi-Slav |
| 56. R Loman vs S Landau |
| 0-1 | 21 | 1929 | Dutch Championship | B03 Alekhine's Defense |
| 57. S Landau vs Olland |
| 1-0 | 23 | 1929 | Dutch Championship | D37 Queen's Gambit Declined |
| 58. K Geus vs S Landau |
| 0-1 | 36 | 1929 | Dutch Championship | B05 Alekhine's Defense, Modern |
| 59. S Landau vs J van den Bosch |
| 1-0 | 43 | 1929 | Dutch Championship | E60 King's Indian Defense |
| 60. E Mulder vs S Landau |
| 0-1 | 31 | 1929 | Dutch Championship | D16 Queen's Gambit Declined Slav |
| 61. S Landau vs J Davidson |
| 1-0 | 80 | 1929 | Dutch Championship | D67 Queen's Gambit Declined, Orthodox Defense, Bd3 line |
| 62. S Landau vs Olland |
| 1-0 | 32 | 1929 | Utrecht-NRSV | E00 Queen's Pawn Game |
| 63. W Berryman vs S Landau |
| 0-1 | 12 | 1930 | Hastings | D70 Neo-Grunfeld Defense |
| 64. Flohr vs S Landau |
 | 1-0 | 36 | 1930 | Antwerp | D30 Queen's Gambit Declined |
| 65. H Weenink vs S Landau |
| 1-0 | 25 | 1930 | Amsterdam Sextangular | B08 Pirc, Classical |
| 66. S Landau vs Euwe |
| 0-1 | 71 | 1930 | Amsterdam Sextangular | D79 Neo-Grunfeld, 6.O-O, Main line |
| 67. S Landau vs J van den Bosch |
| 1-0 | 52 | 1930 | Amsterdam Sextangular | D72 Neo-Grunfeld, 5.cd, Main line |
| 68. Spielmann vs S Landau |
| ½-½ | 25 | 1930 | Amsterdam Sextangular | B02 Alekhine's Defense |
| 69. J Addicks vs S Landau |
| 0-1 | 44 | 1930 | Amsterdam Sextangular | E12 Queen's Indian |
| 70. Maroczy vs S Landau |
| 1-0 | 50 | 1930 | Exhibition game | B02 Alekhine's Defense |
| 71. S Landau vs Maroczy |
| 0-1 | 51 | 1930 | Maroczy - Landau | D17 Queen's Gambit Declined Slav |
| 72. Maroczy vs S Landau |
| 1-0 | 53 | 1930 | Maroczy - Landau | E65 King's Indian, Fianchetto, Yugoslav, 7.O-O |
| 73. S Landau vs Rubinstein |
| ½-½ | 46 | 1930 | Landau - Rubinstein | D21 Queen's Gambit Accepted |
| 74. Rubinstein vs S Landau |
| 1-0 | 45 | 1930 | Landau - Rubinstein | E44 Nimzo-Indian, Fischer Variation, 5.Ne2 |
| 75. S Landau vs Rubinstein |
| 0-1 | 30 | 1930 | Landau - Rubinstein | D28 Queen's Gambit Accepted, Classical |
Kibitzing
