M. Estonllo
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Buenos Aires CA | ??/??/1958 | 0 |  Argentina |
| Buenos Aires CAA | ??/??/1957 | 0 | Argentina |
Most Played Openings as White
| ECO | Opening | Games |
| B39 | Sicilian, accelerated fianchetto, Breyer variation | 1 games |
| D40 | Queen's Gambit Declined, Semi-Tarrasch defence | 1 games |
| D30 | Queen's gambit declined | 1 games |
| D79 | Neo-Gruenfeld, 6.O-O, main line | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C44 | King's pawn game | 1 games |
| A45 | Queen's pawn game | 1 games |
| A39 | English, symmetrical, main line with d4 | 1 games |
| C88 | Ruy Lopez, closed | 1 games |
