M. Yamaguchi
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| COOP tt | ??/??/1992 | 667 |  Argentina |
| Buenos Aires op2 | ??/??/1992 | 513 | Argentina |
Most Played Openings as White
| ECO | Opening | Games |
Most Played Openings as Black
| ECO | Opening | Games |
| B84 | Sicilian, Scheveningen (Paulsen), classical variation | 1 games |
| B23 | Sicilian, closed | 1 games |
