Karl Heinz Sieker
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| GER-ch Seniors 13th | 07/??/2001 | 581 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| B06 | Robatsch (modern) defence | 1 games |
| B70 | Sicilian, dragon variation | 1 games |
| B33 | Sicilian defence | 1 games |
| B09 | Pirc, Austrian attack | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| E70 | King's Indian, 4.e4 | 1 games |
| B90 | Sicilian, Najdorf | 1 games |
| D03 | Torre attack (Tartakower variation) | 1 games |
| B50 | Sicilian | 1 games |


Germany