Male
FIDE ID:
Marius Deuer
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Mitropa Cup 2026 | 05/02/2026 | 2409 |  Austria |
| 2nd Bundesliga Sud 25-26 | 09/27/2025 | 2358 |  Germany |
| Graz Open A 2026 | 02/14/2026 | 2314 | Austria |
| 6th elllobregat Open 2025 | 11/28/2025 | 2309 |  Spain |
Most Played Openings as White
| ECO | Opening | Games |
| E46 | Nimzo-Indian, 4.e3 O-O | 24 games |
| D35 | Queen's Gambit Declined, 3...Nf6 | 19 games |
| D11 | Queen's Gambit Declined Slav, 3.Nf3 | 11 games |
| E60 | King's Indian defence | 11 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B12 | Caro-Kann defence | 33 games |
| B10 | Caro-Kann defence | 15 games |
| B13 | Caro-Kann, exchange variation | 13 games |
| E15 | Queen's Indian, 4.g3 | 12 games |
