Mark Achtmann
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Niedersachsen-chT U12 | 05/??/2001 | 505 |  Germany |
| Hannover-ch U12 | 10/??/2000 | 0 | Germany |
| Hannover-ch U10 | ??/??/1999 | 0 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| B22 | Sicilian, Alapin's variation (2.c3) | 1 games |
| C01 | French, exchange variation | 1 games |
| D00 | Queen's pawn game | 1 games |
| C68 | Ruy Lopez, exchange variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D00 | Queen's pawn game | 2 games |
| C67 | Ruy Lopez, Berlin defence, open variation | 1 games |
| C50 | King's pawn game | 1 games |
| C40 | King's knight opening | 1 games |
