Hans Joachim Diekmann
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| 4th Open | 12/18/2008 | 2170 | Italy |
| Frankfurt-ch | 04/30/2007 | 1751 | Germany |
| Frankfurt-ch | 04/25/2005 | 1717 | Germany |
| Frankfurt-ch | 05/02/2004 | 885 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| B07 | Pirc defence | 3 games |
| C02 | French, advance variation | 2 games |
| C90 | Ruy Lopez, closed (with ...d6) | 2 games |
| A13 | English opening | 2 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B41 | Sicilian, Kan variation | 3 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 3 games |
| B43 | Sicilian, Kan, 5.Nc3 | 3 games |
| D94 | Gruenfeld, 5.e3 | 3 games |


Italy
Germany