| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 51. I Platonov vs Savon |
 | 1-0 | 24 |
1968 |
USSR | B07 Pirc |
| 52. I Platonov vs Kholmov |
| 0-1 | 47 |
1968 |
USSR Championship 1968/69 | E44 Nimzo-Indian, Fischer Variation, 5.Ne2 |
| 53. Bagirov vs I Platonov |
| ½-½ | 17 |
1968 |
12, Alma Ata | D20 Queen's Gambit Accepted |
| 54. Minic vs I Platonov |
| 1-0 | 41 |
1968 |
Sochi (Russia) | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 55. Gurgenidze vs I Platonov |
| ½-½ | 41 |
1968 |
USSR Championship 1968/69 | B51 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 56. I Platonov vs Podgaets |
| ½-½ | 15 |
1968 |
USSR Championship 1968/69 | B18 Caro-Kann, Classical |
| 57. J Petkevich vs I Platonov |
| 0-1 | 38 |
1968 |
Riga Ch Chess Club L | A57 Benko Gambit |
| 58. I Platonov vs Tseshkovsky |
| 1-0 | 25 |
1968 |
USSR Championship 1968/69 | E45 Nimzo-Indian, 4.e3, Bronstein (Byrne) Variation |
| 59. Bagirov vs I Platonov |
| ½-½ | 17 |
1968 |
USSR Championship 1968/69 | D20 Queen's Gambit Accepted |
| 60. I Zaitsev vs I Platonov |
| 1-0 | 38 |
1968 |
USSR Championship 1968/69 | B09 Pirc, Austrian Attack |
| 61. I Platonov vs Geller |
| 1-0 | 45 |
1969 |
USSR Championship | C59 Two Knights |
| 62. I Platonov vs Polugaevsky |
| 0-1 | 35 |
1969 |
USSR Championship | B61 Sicilian, Richter-Rauzer, Larsen Variation, 7.Qd2 |
| 63. I Platonov vs Korchnoi |
| 0-1 | 65 |
1969 |
Leningrad | C05 French, Tarrasch |
| 64. I Platonov vs V Liberzon |
| 0-1 | 50 |
1969 |
USSR Championship | B81 Sicilian, Scheveningen, Keres Attack |
| 65. G Mukhin vs I Platonov |
 | 1-0 | 23 |
1969 |
USSR (ch) 18/ | B95 Sicilian, Najdorf, 6...e6 |
| 66. Lutikov vs I Platonov |
| ½-½ | 52 |
1969 |
USSR Championship | A02 Bird's Opening |
| 67. I Platonov vs A Zaitsev |
| 1-0 | 43 |
1969 |
USSR Championship | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 68. I Platonov vs Lutikov |
| 0-1 | 54 |
1969 |
USSR Championship 1968/69 | B00 Uncommon King's Pawn Opening |
| 69. Zhujovitsky vs I Platonov |
| 1-0 | 41 |
1969 |
USSR | E11 Bogo-Indian Defense |
| 70. I Platonov vs Averkin |
| 0-1 | 29 |
1969 |
USSR Championship | B53 Sicilian |
| 71. Klodos vs I Platonov |
 | 0-1 | 29 |
1969 |
SSSR | E25 Nimzo-Indian, Samisch |
| 72. I Platonov vs Balashov |
| 0-1 | 34 |
1969 |
USSR Championship | D37 Queen's Gambit Declined |
| 73. I Platonov vs Antoshin |
| 1-0 | 44 |
1969 |
USSR | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 74. I Platonov vs Tal |
 | 1-0 | 42 |
1969 |
USSR Championship | B90 Sicilian, Najdorf |
| 75. I Platonov vs B Katalymov |
| 0-1 | 61 |
1969 |
Grozny Team ch URS | A10 English |