Berge Ostenstad
Berge Ostenstad Repertoire with White pieces
| ECO | Opening | Games |
| E97 | King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation) | 29 games |
| E94 | King's Indian, orthodox variation | 19 games |
| E32 | Nimzo-Indian, classical variation | 14 games |
| A57 | Benko gambit | 9 games |
Berge Ostenstad Repertoire with Black pieces
| ECO | Opening | Games |
| C18 | French, Winawer, advance variation | 20 games |
| C06 | French, Tarrasch, closed variation, main line | 11 games |
| D85 | Gruenfeld, exchange variation | 11 games |
| D42 | Queen's Gambit Declined, Semi-Tarrasch, 7.Bd3 | 10 games |
NORWAY

