Sergei Ovsejevitsch
Sergei Ovsejevitsch Repertoire with White pieces
| ECO | Opening | Games |
| E97 | King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation) | 24 games |
| E94 | King's Indian, orthodox variation | 16 games |
| E15 | Queen's Indian, 4.g3 | 12 games |
| D36 | Queen's Gambit Declined, exchange, positional line, 6.Qc2 | 10 games |
Sergei Ovsejevitsch Repertoire with Black pieces
| ECO | Opening | Games |
| B38 | Sicilian, accelerated fianchetto, Maroczy bind, 6.Be3 | 9 games |
| E39 | Nimzo-Indian, classical, Pirc variation | 8 games |
| C45 | Scotch game | 8 games |
| B53 | Sicilian, Chekhover variation | 7 games |
UKRAINE

