| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. K Maeder vs P Smederevac |
| 1-0 | 29 | 1970 | Hoogovens-B | C05 French, Tarrasch |
| 52. Z Doda vs K Maeder |
| 0-1 | 40 | 1970 | Hoogovens-B | E63 King's Indian, Fianchetto, Panno Variation |
| 53. D Drimer vs K Maeder |
| 1-0 | 71 | 1970 | Hoogovens-B | B95 Sicilian, Najdorf, 6...e6 |
| 54. K Maeder vs P H Clarke |
| ½-½ | 21 | 1970 | Hoogovens-B | C52 Evans Gambit |
| 55. V Sokolov vs K Maeder |
| 0-1 | 46 | 1970 | Hoogovens-B | B93 Sicilian, Najdorf, 6.f4 |
| 56. K Maeder vs A Medina Garcia |
| ½-½ | 35 | 1970 | Hoogovens-B | C45 Scotch Game |
| 57. G Antunac vs K Maeder |
| ½-½ | 48 | 1970 | Hoogovens-B | B93 Sicilian, Najdorf, 6.f4 |
| 58. K Maeder vs T van Scheltinga |
| ½-½ | 26 | 1970 | Hoogovens-B | B20 Sicilian |
| 59. K Honfi vs K Maeder |
| 1-0 | 23 | 1970 | Hoogovens-B | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 60. K Maeder vs Andersson |
 | ½-½ | 10 | 1970 | Hoogovens-B | B45 Sicilian, Taimanov |
| 61. A Soltis vs K Maeder |
| 1-0 | 27 | 1970 | World Student Team Championship | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 62. K Maeder vs M Damjanovic |
| ½-½ | 23 | 1970 | Bad Pyrmont | B32 Sicilian |
| 63. I Bilek vs K Maeder |
| 1-0 | 34 | 1970 | Bad Pyrmont | A49 King's Indian, Fianchetto without c4 |
| 64. K Maeder vs H Hecht |
| ½-½ | 73 | 1970 | Bad Pyrmont | C92 Ruy Lopez, Closed |
| 65. C Kiffmeyer vs K Maeder |
| 0-1 | 23 | 1970 | Bad Pyrmont | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 66. K Maeder vs L Lengyel |
| ½-½ | 13 | 1970 | Bad Pyrmont | B80 Sicilian, Scheveningen |
| 67. H Ree vs K Maeder |
| ½-½ | 16 | 1970 | Bad Pyrmont | A15 English |
| 68. K Maeder vs K Schiffer |
| ½-½ | 41 | 1970 | Bad Pyrmont | B03 Alekhine's Defense |
| 69. J Dueball vs K Maeder |
| 0-1 | 58 | 1970 | Bad Pyrmont | B23 Sicilian, Closed |
| 70. K Maeder vs R Naranja |
| ½-½ | 47 | 1970 | Bad Pyrmont | B45 Sicilian, Taimanov |
| 71. M Gerusel vs K Maeder |
| 1-0 | 27 | 1970 | Bad Pyrmont | E60 King's Indian Defense |
| 72. K Maeder vs N Padevsky |
| 0-1 | 49 | 1970 | Bad Pyrmont | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 73. K Maeder vs K Klundt |
| ½-½ | 15 | 1970 | Bad Pyrmont | B60 Sicilian, Richter-Rauzer |
| 74. R Hartoch vs K Maeder |
| 1-0 | 48 | 1970 | Bad Pyrmont | E75 King's Indian, Averbakh, Main line |
| 75. K Maeder vs A Matanovic |
| ½-½ | 15 | 1970 | Bad Pyrmont | C95 Ruy Lopez, Closed, Breyer |
Kibitzing
