Germany
Male
FIDE ID:
Marius Deuer
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| TCh-AUT 2023-24 | 11/22/2023 | 2454 |  Austria |
| 2nd Bundesliga Sud 23-24 | 10/21/2023 | 2359 |  Germany |
| III Menorca Open 2024 | 04/02/2024 | 2356 |  Spain |
| 10th Sunway Sitges 2023 | 12/12/2023 | 2236 | Spain |
Marius Deuer Repertoire with White pieces (most played)
| ECO | Opening | Games |
| E46 | Nimzo-Indian, 4.e3 O-O | 18 games |
| D35 | Queen's Gambit Declined, 3...Nf6 | 12 games |
| D11 | Queen's Gambit Declined Slav, 3.Nf3 | 7 games |
| E60 | King's Indian defence | 5 games |
Marius Deuer Repertoire with Black pieces (most played)
| ECO | Opening | Games |
| B10 | Caro-Kann defence | 10 games |
| E15 | Queen's Indian, 4.g3 | 8 games |
| B13 | Caro-Kann, exchange variation | 8 games |
| A05 | Reti opening | 6 games |
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