J. Czerwinska
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| POL-ch U18 Girls | 01/16/2001 | 642 | Poland |
| MK Cafe Cup-C | 08/03/1999 | 237 | Poland |
| POL-ch U14 Girls | ??/??/1998 | 50 | Poland |
| Koszalin sim2 | ??/??/1997 | 479 | Poland |
Most Played Openings as White
| ECO | Opening | Games |
| B84 | Sicilian, Scheveningen (Paulsen), classical variation | 3 games |
| C01 | French, exchange variation | 2 games |
| B40 | Sicilian defence | 2 games |
| B33 | Sicilian defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C00 | French defence | 2 games |
| D35 | Queen's Gambit Declined, 3...Nf6 | 2 games |
| D05 | Queen's pawn game | 1 games |
| D00 | Queen's pawn game | 1 games |


Poland