Male
FIDE ID:
Marius Deuer
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Mitropa Cup 2025 | 05/14/2025 | 2428 |  Slovakia |
| IV Menorca Open A 2025 | 04/22/2025 | 2391 |  Spain |
| TCh-AUT 2024-25 | 10/09/2024 | 2378 |  Austria |
| 2nd Bundesliga Sud 24-25 | 10/10/2024 | 2381 |  Germany |
Marius Deuer Opening Repertoire with White pieces
| ECO | Opening | Games |
| E46 | Nimzo-Indian, 4.e3 O-O | 24 games |
| D35 | Queen's Gambit Declined, 3...Nf6 | 15 games |
| D11 | Queen's Gambit Declined Slav, 3.Nf3 | 10 games |
| E60 | King's Indian defence | 9 games |
Marius Deuer Opening Repertoire with Black pieces
| ECO | Opening | Games |
| B12 | Caro-Kann defence | 24 games |
| B10 | Caro-Kann defence | 13 games |
| E15 | Queen's Indian, 4.g3 | 12 games |
| A33 | English, symmetrical variation | 10 games |
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