Guenther Koschka
Guenther Koschka Repertoire with White pieces
| ECO | Opening | Games |
| B42 | Sicilian, Kan, 5.Bd3 | 2 games |
| C01 | French, exchange variation | 2 games |
| B07 | Pirc defence | 2 games |
| B55 | Sicilian, Prins variation, Venice attack | 2 games |
Guenther Koschka Repertoire with Black pieces
| ECO | Opening | Games |
| C41 | Philidor's defence | 4 games |
| D53 | Queen's Gambit Declined, 4.Bg5 Be7 | 1 games |
| A14 | English, Neo-Catalan declined | 1 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 1 games |


