Johann Zwack
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Oberpfalz-ch M3 | ??/??/1998 | 128 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| D00 | Queen's pawn game | 2 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 1 games |
| C11 | French defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C20 | King's pawn game | 1 games |
| C41 | Philidor's defence | 1 games |
| D12 | Queen's Gambit Declined Slav, 4.e3 Bf5 | 1 games |
| C42 | Petrov's defence | 1 games |


Germany