Siegfried Prochnow
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Hamburg-ch qual | 10/18/2003 | 1717 | Germany |
| Lucky op 2nd | 10/??/1999 | 1251 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| B23 | Sicilian, closed | 1 games |
| D61 | Queen's Gambit Declined, Orthodox defence, Rubinstein variation | 1 games |
| E87 | King's Indian, Saemisch, orthodox, 7.d5 | 1 games |
| D53 | Queen's Gambit Declined, 4.Bg5 Be7 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D37 | Queen's Gambit Declined, 4.Nf3 | 1 games |
| C11 | French defence | 1 games |
| D36 | Queen's Gambit Declined, exchange, positional line, 6.Qc2 | 1 games |
| B01 | Scandinavian (centre counter) defence | 1 games |


Germany