J. Diaz Perez
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Buenos Aires ol (Men) f-B | 09/??/1939 | 0 |  Argentina |
| Buenos Aires ol (Men) prel-A | 08/24/1939 | 0 | Argentina |
J. Diaz Perez Repertoire with White pieces (most played)
| ECO | Opening | Games |
| B70 | Sicilian, dragon variation | 2 games |
| D52 | Queen's Gambit Declined | 1 games |
| B19 | Caro-Kann, classical, 7...Nd7 | 1 games |
| E70 | King's Indian, 4.e4 | 1 games |
J. Diaz Perez Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| E61 | King's Indian defence, 3.Nc3 | 1 games |
| B12 | Caro-Kann defence | 1 games |
| E97 | King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation) | 1 games |
| B18 | Caro-Kann, classical variation | 1 games |
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