| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. A Fuderer vs G Pfeiffer |
| 0-1 | 69 | 1950 | Bled | B01 Scandinavian |
| 52. G Pfeiffer vs Najdorf |
 | 0-1 | 40 | 1950 | Bled | B20 Sicilian |
| 53. G Stoltz vs G Pfeiffer |
| ½-½ | 18 | 1950 | Bled | B12 Caro-Kann Defense |
| 54. M Eisinger vs G Pfeiffer |
| 0-1 | 30 | 1951 | GER-ch 14th | B18 Caro-Kann, Classical |
| 55. G Pfeiffer vs N Cortlever |
| 0-1 | 27 | 1951 | FRG-NED m | C02 French, Advance |
| 56. H Grob vs G Pfeiffer |
| 0-1 | 29 | 1951 | Dortmund | C50 Giuoco Piano |
| 57. G Pfeiffer vs B Milic |
| 0-1 | 66 | 1951 | Dortmund | B58 Sicilian |
| 58. O'Kelly vs G Pfeiffer |
| 1-0 | 34 | 1951 | Dortmund | E08 Catalan, Closed |
| 59. G Pfeiffer vs W Lange |
| 1-0 | 29 | 1951 | Dortmund | B16 Caro-Kann, Bronstein-Larsen Variation |
| 60. Rossolimo vs G Pfeiffer |
| ½-½ | 40 | 1951 | Dortmund | B10 Caro-Kann |
| 61. A Fuderer vs G Pfeiffer |
| 1-0 | 49 | 1951 | Dortmund | E19 Queen's Indian, Old Main line, 9.Qxc3 |
| 62. S Puc vs G Pfeiffer |
| 1-0 | 56 | 1951 | Dortmund | B14 Caro-Kann, Panov-Botvinnik Attack |
| 63. G Pfeiffer vs E Keller-Herrmann |
| 1-0 | 33 | 1951 | Dortmund | E03 Catalan, Open |
| 64. G Pfeiffer vs G Stoltz |
| 1-0 | 25 | 1951 | Dortmund | E87 King's Indian, Samisch, Orthodox |
| 65. G Pfeiffer vs G Kieninger |
| 1-0 | 39 | 1951 | Dortmund | D63 Queen's Gambit Declined, Orthodox Defense |
| 66. Bogoljubov vs G Pfeiffer |
| 0-1 | 39 | 1951 | Dortmund | B10 Caro-Kann |
| 67. Pirc vs G Pfeiffer |
| 1-0 | 41 | 1951 | West Germany - Yugoslavia | D55 Queen's Gambit Declined |
| 68. G Pfeiffer vs Pirc |
| ½-½ | 59 | 1951 | West Germany - Yugoslavia | B20 Sicilian |
| 69. G Pfeiffer vs Gilg |
| 1-0 | 44 | 1951 | GER-ch 14th | B50 Sicilian |
| 70. L Schmid vs G Pfeiffer |
| 1-0 | 40 | 1951 | GER-ch 14th | B10 Caro-Kann |
| 71. M Blau vs G Pfeiffer |
| 1-0 | 50 | 1952 | SUI-FRG | B18 Caro-Kann, Classical |
| 72. G Pfeiffer vs M Blau |
| 1-0 | 26 | 1952 | SUI-FRG | C75 Ruy Lopez, Modern Steinitz Defense |
| 73. G Pfeiffer vs B Milic |
| ½-½ | 59 | 1952 | YUG-FRG | B07 Pirc |
| 74. G Pfeiffer vs E Cobo Arteaga |
| 1-0 | 47 | 1952 | Helsinki Olympiad qual-1 | C77 Ruy Lopez |
| 75. J Penrose vs G Pfeiffer |
| 1-0 | 57 | 1952 | Helsinki Olympiad qual-1 | B17 Caro-Kann, Steinitz Variation |
Kibitzing
