| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Efimenko vs Karjakin |
| 1-0 | 43 |
2001 |
2nd Governor's Cup | B17 Caro-Kann, Steinitz Variation |
| 2. Efimenko vs D Ciric |
| ½-½ | 43 |
2001 |
MTO | B15 Caro-Kann |
| 3. Efimenko vs Lahno |
| ½-½ | 25 |
2004 |
Montreal-A 5th | B14 Caro-Kann, Panov-Botvinnik Attack |
| 4. Efimenko vs M Mchedlishvili |
| 1-0 | 29 |
2005 |
7th Dubai Open Chess Championship | B19 Caro-Kann, Classical |
| 5. Efimenko vs L Pantsulaia |
| ½-½ | 36 |
2005 |
6th European Individual Championship | B18 Caro-Kann, Classical |
| 6. Efimenko vs Epishin |
| 1-0 | 24 |
2005 |
Aeroflot Open | B18 Caro-Kann, Classical |
| 7. Efimenko vs M Pavlovic |
| 1-0 | 47 |
2006 |
Gibtelecom Chess Festival | B19 Caro-Kann, Classical |
| 8. Efimenko vs V Iordachescu |
| ½-½ | 35 |
2006 |
Serbian Team Championship | B18 Caro-Kann, Classical |
| 9. Efimenko vs M Al Sayed |
| ½-½ | 68 |
2006 |
15th Monarch Assurance | B18 Caro-Kann, Classical |
| 10. Efimenko vs D Pribeanu |
 | 1-0 | 23 |
2006 |
37th Chess Olympiad | B12 Caro-Kann Defense |
| 11. Efimenko vs A Riazantsev |
| 1-0 | 33 |
2006 |
Aeroflot Open | B18 Caro-Kann, Classical |
| 12. Efimenko vs S Sulskis |
| ½-½ | 48 |
2007 |
5th Gibraltar Chess Festival | B18 Caro-Kann, Classical |
| 13. Efimenko vs V Iordachescu |
| ½-½ | 63 |
2007 |
Isle of Man International | B12 Caro-Kann Defense |
| 14. Efimenko vs R Zelcic |
| ½-½ | 44 |
2007 |
European Individual Championships | B12 Caro-Kann Defense |
| 15. Efimenko vs A Riazantsev |
| ½-½ | 31 |
2007 |
6th Aeroflot Festival | B12 Caro-Kann Defense |
| 16. Efimenko vs V Iordachescu |
| ½-½ | 22 |
2007 |
6th Aeroflot Festival | B18 Caro-Kann, Classical |
| 17. Efimenko vs R W Smith |
| 1-0 | 38 |
2008 |
2008 Olympiad | B18 Caro-Kann, Classical |
| 18. Efimenko vs E L'Ami |
| 0-1 | 61 |
2008 |
European Individual Championship | B12 Caro-Kann Defense |
| 19. Efimenko vs L Pantsulaia |
| ½-½ | 50 |
2008 |
European Individual Championship | B12 Caro-Kann Defense |
| 20. Efimenko vs Macieja |
| ½-½ | 103 |
2008 |
European Individual Championship | B12 Caro-Kann Defense |
| 21. Efimenko vs J Jorczik |
| 1-0 | 42 |
2008 |
2008-2009 Bundesliga | B12 Caro-Kann Defense |
| 22. Efimenko vs D Andreikin |
| 1-0 | 26 |
2008 |
Russian Team Championship | B12 Caro-Kann Defense |
| 23. Efimenko vs Nisipeanu |
| ½-½ | 59 |
2009 |
European Club Cup | B18 Caro-Kann, Classical |
| 24. Efimenko vs Bareev |
| ½-½ | 36 |
2009 |
Russian Team Championship | B12 Caro-Kann Defense |
| 25. Efimenko vs Z Gyimesi |
| 1-0 | 50 |
2009 |
2008-2009 Bundesliga | B12 Caro-Kann Defense |
