| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. Y Kotkov vs Y Shaposhnikov |
| 0-1 | 36 | 1958 | Russian Championship | B96 Sicilian, Najdorf |
| 52. Y Kotkov vs R Nezhmetdinov |
| 0-1 | 53 | 1958 | Russian Championship | C96 Ruy Lopez, Closed |
| 53. Y Kotkov vs V Zheliandinov |
| 1-0 | 36 | 1959 | Ch Russia (1/2 final) | B97 Sicilian, Najdorf |
| 54. Y Kotkov vs B Vladimirov |
| 1-0 | 60 | 1959 | Ch Russia (1/2 final) | B32 Sicilian |
| 55. Shamkovich vs Y Kotkov |
| 1-0 | 42 | 1959 | Russian Championship | D85 Grunfeld |
| 56. Y Kotkov vs M Shakhov |
| 1-0 | 38 | 1959 | Russian Championship | C74 Ruy Lopez, Modern Steinitz Defense |
| 57. Y Kotkov vs G Borisenko |
| 0-1 | 56 | 1959 | Russian Championship | C96 Ruy Lopez, Closed |
| 58. Y Kotkov vs N Krogius |
| 1-0 | 20 | 1959 | Russian Championship | B32 Sicilian |
| 59. Y Kotkov vs Polugaevsky |
| 0-1 | 39 | 1959 | Russian Championship | B87 Sicilian, Fischer-Sozin with ...a6 and ...b5 |
| 60. Y Kotkov vs R Nezhmetdinov |
| 0-1 | 40 | 1959 | Russian Championship | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
| 61. V Tarasov vs Y Kotkov |
| ½-½ | 23 | 1960 | RSFSR Championship | D02 Queen's Pawn Game |
| 62. Lutikov vs Y Kotkov |
| 1-0 | 28 | 1960 | RSFSR Championship | D85 Grunfeld |
| 63. Y Kotkov vs M Yudovich Jr |
| ½-½ | 42 | 1960 | RSFSR Championship | C96 Ruy Lopez, Closed |
| 64. Y Kotkov vs V Terentiev |
| 0-1 | 63 | 1960 | RSFSR Championship | B98 Sicilian, Najdorf |
| 65. Y Kotkov vs Chernov |
| 1-0 | 41 | 1960 | RSFSR Championship | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 66. Y Kotkov vs G Borisenko |
| ½-½ | 26 | 1960 | RSFSR Championship | C86 Ruy Lopez, Worrall Attack |
| 67. N Krogius vs Y Kotkov |
| ½-½ | 22 | 1960 | RSFSR Championship | D71 Neo-Grunfeld |
| 68. Y Kotkov vs V Zhilin |
| 0-1 | 45 | 1960 | RSFSR Championship | C41 Philidor Defense |
| 69. Y Kotkov vs Y Shaposhnikov |
| 0-1 | 31 | 1960 | RSFSR Championship | C16 French, Winawer |
| 70. Y Kotkov vs A Zaitsev |
| 1-0 | 40 | 1960 | Ch Russia (1/2 final) | B45 Sicilian, Taimanov |
| 71. Y Kotkov vs Taimanov |
| 1-0 | 55 | 1960 | RSFSR Championship | B44 Sicilian |
| 72. M Yudovich Jr vs Y Kotkov |
| 1-0 | 43 | 1961 | Russian Championship | E94 King's Indian, Orthodox |
| 73. Y Kotkov vs R Nezhmetdinov |
| 1-0 | 32 | 1961 | Russian Championship | C96 Ruy Lopez, Closed |
| 74. L Belov vs Y Kotkov |
| 1-0 | 39 | 1961 | Russian Championship | B58 Sicilian |
| 75. Y Kotkov vs P Kondratiev |
| 0-1 | 44 | 1961 | Spartak Team Championship | B75 Sicilian, Dragon, Yugoslav Attack |
Kibitzing
