Mark Vieweg
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Koblenz-ch | ??/??/1999 | 199 | Germany |
| Koblenz-ch | 11/??/1997 | 1710 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| D00 | Queen's pawn game | 5 games |
| A03 | Bird's opening | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| A85 | Dutch with c4 & Nc3 | 2 games |
| A84 | Dutch defence | 1 games |
| A95 | Dutch, stonewall with Nc3 | 1 games |
| B75 | Sicilian, dragon, Yugoslav attack | 1 games |


Germany