| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. B M Kogan vs R Ermakov |
| 1-0 | 40 | 1966 | Ukrainian Championship | A04 Reti Opening |
| 2. B M Kogan vs G Agzamov |
| 1-0 | 59 | 1977 | Azmiddin Khodzhaev Memorial | A04 Reti Opening |
| 3. B M Kogan vs J Peters |
| ½-½ | 16 | 1981 | United States Championship | A04 Reti Opening |
| 4. B M Kogan vs Forintos |
| ½-½ | 54 | 1982 | Reykjavik Open | A04 Reti Opening |
| 5. B M Kogan vs Benjamin |
| 0-1 | 56 | 1984 | 12th World Open | A04 Reti Opening |
| 6. B M Kogan vs de Firmian |
| ½-½ | 11 | 1985 | United States Championship | A04 Reti Opening |
| 7. B M Kogan vs L Christiansen |
| 1-0 | 37 | 1986 | United States Championship | A04 Reti Opening |
| 8. B M Kogan vs Seirawan |
| 0-1 | 45 | 1986 | Reykjavik Open | A04 Reti Opening |
Kibitzing
