| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. I Efimov vs Wojtkiewicz |
| 0-1 | 37 |
1988 |
Warsaw | A56 Benoni Defense |
| 27. Kramnik vs I Efimov |
 | ½-½ | 34 |
1989 |
It (open) | B33 Sicilian |
| 28. I Efimov vs Barsov |
| 1-0 | 32 |
1990 |
Kecskemet op | C02 French, Advance |
| 29. Barbero vs I Efimov |
| 1-0 | 39 |
1990 |
It (open) | A86 Dutch |
| 30. I Efimov vs Yermolinsky |
| 0-1 | 29 |
1990 |
It (open) | B59 Sicilian, Boleslavsky Variation, 7.Nb3 |
| 31. I Efimov vs Haragos Kalman |
| 1-0 | 48 |
1990 |
It (open) | C58 Two Knights |
| 32. Kotronias vs I Efimov |
| 1-0 | 29 |
1991 |
Peer | B56 Sicilian |
| 33. Balashov vs I Efimov |
| ½-½ | 15 |
1991 |
Lenk op | D27 Queen's Gambit Accepted, Classical |
| 34. I Efimov vs Kotronias |
| 0-1 | 50 |
1991 |
Corfu | A49 King's Indian, Fianchetto without c4 |
| 35. Chiburdanidze vs I Efimov |
| ½-½ | 25 |
1991 |
Tbilisi | C03 French, Tarrasch |
| 36. I Efimov vs Wojtkiewicz |
| ½-½ | 26 |
1991 |
x | A49 King's Indian, Fianchetto without c4 |
| 37. I Efimov vs Shirov |
 | 0-1 | 15 |
1991 |
Gausdal Arnold Cup | C57 Two Knights |
| 38. A Grosar vs I Efimov |
| 0-1 | 48 |
1991 |
It (open) | C50 Giuoco Piano |
| 39. Krasenkow vs I Efimov |
| 1-0 | 81 |
1991 |
Gausdal | A80 Dutch |
| 40. Psakhis vs I Efimov |
| 1-0 | 25 |
1991 |
Lenk 52/117 | B01 Scandinavian |
| 41. I Efimov vs N Gaprindashvili |
| 1-0 | 48 |
1991 |
It (cat.4) | B08 Pirc, Classical |
| 42. I Efimov vs Zsuzsa Polgar |
 | 1-0 | 30 |
1992 |
Oviedo 45' | A49 King's Indian, Fianchetto without c4 |
| 43. I Efimov vs Chandler |
| 1-0 | 30 |
1992 |
It (active) | D05 Queen's Pawn Game |
| 44. K Spraggett vs I Efimov |
| ½-½ | 43 |
1993 |
It (open) | D35 Queen's Gambit Declined |
| 45. B Tasic vs I Efimov |
| 0-1 | 11 |
1994 |
Nice (France) | E04 Catalan, Open, 5.Nf3 |
| 46. K Spraggett vs I Efimov |
| ½-½ | 40 |
1994 |
Casablanca | C03 French, Tarrasch |
| 47. I Efimov vs Plachetka |
| 1-0 | 32 |
1994 |
Casablanca | A58 Benko Gambit |
| 48. I Efimov vs S Shipov |
| 0-1 | 66 |
1995 |
It open | A07 King's Indian Attack |
| 49. I Efimov vs V Malakhov |
| ½-½ | 35 |
1996 |
Celle Ligure op | A43 Old Benoni |
| 50. I Efimov vs Pavasovic |
| ½-½ | 44 |
1997 |
Ljubljana | A27 English, Three Knights System |