Walter Sonnhalter
Walter Sonnhalter Repertoire with White pieces
| ECO | Opening | Games |
| E76 | King's Indian, Four pawns attack | 5 games |
| A42 | Modern defence, Averbakh system | 5 games |
| A18 | English, Mikenas-Carls variation | 4 games |
| E70 | King's Indian, 4.e4 | 3 games |
Walter Sonnhalter Repertoire with Black pieces
| ECO | Opening | Games |
| B34 | Sicilian, accelerated fianchetto, exchange variation | 4 games |
| B21 | Sicilian, Grand Prix attack | 4 games |
| B07 | Pirc defence | 3 games |
| A48 | King's Indian, East Indian defence | 2 games |


