Gerhard Dr Koehler
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Vienna Open 2019 | 08/17/2019 | 2293 |  Austria |
| Gibraltar Masters 2019 | 01/22/2019 | 2375 |  United Kingdom |
| Zurich Korchnoi Open 2017 | 04/13/2017 | 2326 |  Switzerland |
| World Blitz 2015 | 10/13/2015 | 2580 |  Germany |
Gerhard Dr Koehler Opening Repertoire with White pieces
| ECO | Opening | Games |
| A22 | English opening | 4 games |
| E98 | King's Indian, orthodox, Aronin-Taimanov, 9.Ne1 | 4 games |
| A34 | English, symmetrical variation | 3 games |
| A25 | English, Sicilian reversed | 3 games |
Gerhard Dr Koehler Opening Repertoire with Black pieces
| ECO | Opening | Games |
| B22 | Sicilian, Alapin's variation (2.c3) | 2 games |
| A42 | Modern defence, Averbakh system | 2 games |
| B40 | Sicilian defence | 2 games |
| B23 | Sicilian, closed | 2 games |
