Mariusz Marek
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Verbandsliga Nord Baden 0607 | 10/22/2006 | 1437 | Germany |
| NATO-ch 15th | 08/08/2004 | 1376 | Netherlands |
| POL-chT | ??/??/1994 | 2278 | Poland |
Most Played Openings as White
| ECO | Opening | Games |
| B07 | Pirc defence | 1 games |
| B03 | Alekhine's defence | 1 games |
| C29 | Vienna gambit | 1 games |
| B23 | Sicilian, closed | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B23 | Sicilian, closed | 1 games |
| E32 | Nimzo-Indian, classical variation | 1 games |
| A89 | Dutch, Leningrad, main variation with Nc6 | 1 games |
| A37 | English, symmetrical variation | 1 games |
Poland
Male
FIDE ID:

Germany
Netherlands