Šachoví veľmajstri
Kogan, Boris - De Firmian, Nick E
5 partii
| Biely |
Čierny |
Miesto |
Čas |
Výsledok |
| De Firmian, Nick E |
Kogan, Boris |
|
1983 |
1-0 |
| Kogan, Boris |
De Firmian, Nick E |
Estes Park |
1987 |
½-½ |
| De Firmian, Nick E |
Kogan, Boris |
|
1986 |
0-1 |
| Kogan, Boris |
De Firmian, Nick E |
Berkeley |
1984 |
½-½ |
| Kogan, Boris |
De Firmian, Nick E |
Estes Park |
1985 |
½-½ |