Matias Nicolas Ruiz
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Buenos Aires Najdorf U12/14 | 10/07/2004 | 84 | Argentina |
Most Played Openings as White
| ECO | Opening | Games |
| A00 | Polish (Sokolsky) opening | 4 games |
| C45 | Scotch game | 1 games |
| B95 | Sicilian, Najdorf, 6...e6 | 1 games |
| B33 | Sicilian defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| A00 | Polish (Sokolsky) opening | 2 games |
| C50 | King's pawn game | 1 games |
| A40 | Queen's pawn | 1 games |
| C78 | Ruy Lopez, 5.O-O | 1 games |


Argentina