Efim Kogan
| White | Black | |
|---|---|---|
| Ussakovsky | Efim Kogan | View |
| Efim Kogan | L. Stoliarov | View |
| Eduard Gufeld | Efim Kogan | View |
| Efim Kogan | Nikolay A Kopaev | View |
| Efim Kogan | Alexey Sokolsky | View |
| Efim Kogan | Viacheslav Ragozin | View |
| Efim Kogan | Konstantin Mikhailovich Klaman | View |
| Efim P Geller | Efim Kogan | View |
| Rafael Moiseevich Kofman | Efim Kogan | View |