| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. Petrosian vs Y Kotkov |
  | 1-0 | 20 | 1946 | URS-ch U18 | E10 Queen's Pawn Game |
| 2. E Valeev vs Y Kotkov |
| 1-0 | 34 | 1955 | 15th Ch RSFSR (sf) | B32 Sicilian |
| 3. Y Kotkov vs R Levit |
| 1-0 | 22 | 1955 | 15th Ch RSFSR (sf) | C73 Ruy Lopez, Modern Steinitz Defense |
| 4. E Stoliar vs Y Kotkov |
| 0-1 | 35 | 1956 | Russian Championship | A16 English |
| 5. Y Kotkov vs R Nezhmetdinov |
| 1-0 | 75 | 1956 | Russian Championship | C63 Ruy Lopez, Schliemann Defense |
| 6. Y Kotkov vs Shamkovich |
| 1-0 | 43 | 1956 | Russian Championship | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 7. S Khavsky vs Y Kotkov |
| 1-0 | 41 | 1956 | Russian Championship | B76 Sicilian, Dragon, Yugoslav Attack |
| 8. Lutikov vs Y Kotkov |
| ½-½ | 20 | 1956 | Russian Championship | B60 Sicilian, Richter-Rauzer |
| 9. Y Kotkov vs Korchnoi |
| ½-½ | 51 | 1956 | Poltava | C81 Ruy Lopez, Open, Howell Attack |
| 10. Korchnoi vs Y Kotkov |
| 1-0 | 34 | 1956 | Molotov | A57 Benko Gambit |
| 11. Y Kotkov vs Korchnoi |
| 0-1 | 43 | 1956 | Molotov | C05 French, Tarrasch |
| 12. Korchnoi vs Y Kotkov |
| ½-½ | 22 | 1956 | Molotov | E60 King's Indian Defense |
| 13. Y Kotkov vs Korchnoi |
| 0-1 | 50 | 1956 | Molotov | C81 Ruy Lopez, Open, Howell Attack |
| 14. Y Kotkov vs A Novopashin |
| 1-0 | 40 | 1956 | Russian Championship | A56 Benoni Defense |
| 15. Y Kotkov vs N Novotelnov |
| 1-0 | 38 | 1956 | Russian Championship | B88 Sicilian, Fischer-Sozin Attack |
| 16. Lisitsin vs Y Kotkov |
| 1-0 | 30 | 1956 | Russian Championship | B73 Sicilian, Dragon, Classical |
| 17. Tal vs Y Kotkov |
| ½-½ | 50 | 1956 | URS-ch sf Tbilisi | E73 King's Indian |
| 18. Y Kotkov vs N Krogius |
| ½-½ | 45 | 1956 | URS-ch sf Tbilisi | C94 Ruy Lopez, Closed, Breyer Defense |
| 19. E Chukaev vs Y Kotkov |
| 0-1 | 40 | 1956 | URS-ch sf Tbilisi | A56 Benoni Defense |
| 20. Y Sakharov vs Y Kotkov |
| ½-½ | 58 | 1956 | URS-ch sf Tbilisi | C18 French, Winawer |
| 21. Y Kotkov vs Polugaevsky |
| ½-½ | 25 | 1956 | URS-ch sf Tbilisi | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
| 22. Koblents vs Y Kotkov |
| ½-½ | 14 | 1956 | URS-ch sf Tbilisi | E79 King's Indian, Four Pawns Attack, Main line |
| 23. Y Kotkov vs Gufeld |
| ½-½ | 19 | 1956 | URS-ch sf Tbilisi | B29 Sicilian, Nimzovich-Rubinstein |
| 24. V Zurakhov vs Y Kotkov |
| ½-½ | 41 | 1956 | URS-ch sf Tbilisi | B28 Sicilian, O'Kelly Variation |
| 25. Y Kotkov vs Furman |
| ½-½ | 51 | 1956 | URS-ch sf Tbilisi | C73 Ruy Lopez, Modern Steinitz Defense |
Kibitzing
