Dieter Bertholdt
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| DDR-ch 12th | ??/??/1962 | 0 | |
| Baltic Nations | ??/??/1960 | 0 | |
| WchT U26 07th | ??/??/1960 | 0 | |
| Bad Salzungen | ??/??/1960 | 0 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| E70 | King's Indian, 4.e4 | 4 games |
| E14 | Queen's Indian, 4.e3 | 4 games |
| E61 | King's Indian defence, 3.Nc3 | 4 games |
| E54 | Nimzo-Indian, 4.e3, Gligoric system with 7...dc | 3 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C06 | French, Tarrasch, closed variation, main line | 9 games |
| C17 | French, Winawer, advance variation | 5 games |
| E54 | Nimzo-Indian, 4.e3, Gligoric system with 7...dc | 5 games |
| C18 | French, Winawer, advance variation | 4 games |


Germany