Joao Zacharias
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| BRA-ch | ??/??/1969 | 0 |  Brazil |
| Sao Paulo | ??/??/1957 | 0 | Brazil |
Most Played Openings as White
| ECO | Opening | Games |
| C70 | Ruy Lopez | 1 games |
| E21 | Nimzo-Indian, three knights variation | 1 games |
| A68 | Benoni, four pawns attack | 1 games |
| E87 | King's Indian, Saemisch, orthodox, 7.d5 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D53 | Queen's Gambit Declined, 4.Bg5 Be7 | 1 games |
| B27 | Sicilian defence | 1 games |
| C55 | Two knights defence | 1 games |
| E80 | King's Indian, Saemisch variation | 1 games |
