Claus Hartmann
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Lugano op | 02/??/1986 | 1895 | Switzerland |
| DDR-ch 11th | 10/14/1961 | 0 | |
| DDR-ch 10th | 12/28/1959 | 0 |
Most Played Openings as White
| ECO | Opening | Games |
| B80 | Sicilian, Scheveningen variation | 2 games |
| A17 | English opening | 2 games |
| B92 | Sicilian, Najdorf, Opovcensky variation | 1 games |
| C14 | French, classical variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D94 | Gruenfeld, 5.e3 | 2 games |
| D66 | Queen's Gambit Declined, Orthodox defence, Bd3 line | 1 games |
| B14 | Caro-Kann, Panov-Botvinnik attack, 5...e6 | 1 games |
| A49 | King's Indian, fianchetto without c4 | 1 games |


Switzerland