Josif Stefanov
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| WchT U26 11th fin-A | 07/18/1964 | 0 | Poland |
| WchT U26 11th qual-E | 07/18/1964 | 0 | Poland |
| BUL-ch | ??/??/1959 | 0 | Bulgaria |
Most Played Openings as White
| ECO | Opening | Games |
| E69 | King's Indian, fianchetto, classical main line | 2 games |
| E66 | King's Indian, fianchetto, Yugoslav Panno | 2 games |
| E16 | Queen's Indian, Capablanca variation | 1 games |
| E17 | Queen's Indian, 5.Bg2 Be7 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B36 | Sicilian, accelerated fianchetto, Maroczy bind | 2 games |
| E70 | King's Indian, 4.e4 | 2 games |
| E86 | King's Indian, Saemisch, orthodox, 7.Nge2 c6 | 2 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 1 games |


Poland
Bulgaria