| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. I Efimov vs V Vepkhvishvili |
| 0-1 | 39 | 1974 | Ch Tbilisi | C91 Ruy Lopez, Closed |
| 2. Z Lanka vs I Efimov |
| 1-0 | 42 | 1977 | LAT-GEO | B33 Sicilian |
| 3. I Efimov vs Chernin |
| 1-0 | 54 | 1977 | Ch URS (team) (juniors) | A07 King's Indian Attack |
| 4. I Efimov vs G Shilman |
| ½-½ | 54 | 1977 | USSR Junior Championship | C02 French, Advance |
| 5. Chernin vs I Efimov |
| 1-0 | 23 | 1977 | USSR Junior Championship | A22 English |
| 6. Kasparov vs I Efimov |
 | ½-½ | 17 | 1977 | USSR Junior Championship | C18 French, Winawer |
| 7. I Efimov vs Epishin |
| 1-0 | 56 | 1977 | USSR Junior Championship | A45 Queen's Pawn Game |
| 8. I Efimov vs N Popov |
| 1-0 | 38 | 1977 | Yerevan | B80 Sicilian, Scheveningen |
| 9. I Efimov vs H Khalikian |
| ½-½ | 41 | 1977 | Yerevan | B47 Sicilian, Taimanov (Bastrikov) Variation |
| 10. I Efimov vs B Katalymov |
| ½-½ | 23 | 1977 | Yerevan | C67 Ruy Lopez |
| 11. E Mnatsakanian vs I Efimov |
| 1-0 | 35 | 1977 | Yerevan | B33 Sicilian |
| 12. I Efimov vs L S Eolian |
| ½-½ | 21 | 1977 | Yerevan | C42 Petrov Defense |
| 13. Lutikov vs I Efimov |
| 0-1 | 41 | 1977 | Yerevan | B33 Sicilian |
| 14. Lputian vs I Efimov |
| ½-½ | 40 | 1977 | Yerevan | A37 English, Symmetrical |
| 15. J Petkevich vs I Efimov |
| ½-½ | 19 | 1977 | Yerevan | A04 Reti Opening |
| 16. I Efimov vs V Doroshkievich |
| 1-0 | 34 | 1977 | Yerevan | C05 French, Tarrasch |
| 17. I Efimov vs I Ivanov |
| 1-0 | 39 | 1977 | Yerevan | B62 Sicilian, Richter-Rauzer |
| 18. I Efimov vs A Donchenko |
| 0-1 | 58 | 1977 | Yerevan | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
| 19. G Akopian vs I Efimov |
| 0-1 | 27 | 1977 | Yerevan | B33 Sicilian |
| 20. O Averkin vs I Efimov |
| ½-½ | 18 | 1977 | Yerevan | E96 King's Indian, Orthodox, 7...Nbd7, Main line |
| 21. I Efimov vs Tseshkovsky |
| ½-½ | 20 | 1977 | Yerevan | B07 Pirc |
| 22. A Arutiunov vs I Efimov |
| 0-1 | 38 | 1977 | Yerevan | E71 King's Indian, Makagonov System (5.h3) |
| 23. A Malevinsky vs I Efimov |
| ½-½ | 38 | 1977 | Yerevan | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 24. S Ivanov vs I Efimov |
| 0-1 | 41 | 1978 | USSR Junior Championship | B11 Caro-Kann, Two Knights, 3...Bg4 |
| 25. I Efimov vs A Machulsky |
| 1-0 | 39 | 1979 | URS | B12 Caro-Kann Defense |
Kibitzing
