M. Jaszcz
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| POL-ch U18 Girls | ??/??/1998 | 491 |  Poland |
M. Jaszcz Repertoire with White pieces (most played)
| ECO | Opening | Games |
| B24 | Sicilian, closed | 1 games |
| C76 | Ruy Lopez, modern Steinitz defence, fianchetto (Bronstein) variation | 1 games |
| C78 | Ruy Lopez, 5.O-O | 1 games |
| C90 | Ruy Lopez, closed (with ...d6) | 1 games |
M. Jaszcz Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| C86 | Ruy Lopez, Worrall attack | 1 games |
| C78 | Ruy Lopez, 5.O-O | 1 games |
| C52 | Evans gambit | 1 games |
| A25 | English, Sicilian reversed | 1 games |
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