GMMarius Deuer
GER Born 2008 (Age ≈18) Male
- FIDE ID
- 16236432
About Marius Deuer
Marius Deuer grew up initially in Hanover, where he attended the Bemerode chess centre and joined a club at five. After his family moved to Aulendorf, he became a member of SC Weiße Dame Ulm. In 2020, aged twelve, he won bronze in Germany's under-16 championship. Show more
Marius Deuer grew up initially in Hanover, where he attended the Bemerode chess centre and joined a club at five. After his family moved to Aulendorf, he became a member of SC Weiße Dame Ulm. In 2020, aged twelve, he won bronze in Germany's under-16 championship. That year he also defeated a grandmaster for the first time, beating Petro Holubka in Kraków. His three IM norms came in Cattolica, Spilimbergo and Budapest, and FIDE awarded the title in 2023.
Deuer earned his first GM norm at Tegernsee in 2024. At the 2025 Mitropa Cup, he played first board for Germany, winning individual silver and securing another norm. He completed the final norm at the Ellobregat Open in December 2025. FIDE awarded him the grandmaster title in 2026. In club chess, he progressed from Biberach to Schönaich, making his Bundesliga debut in the 2022-23 season. He joined Münchener SC 1836 in 2025.
FIDE ratings
Rapid
2436Published FIDE
Blitz
2516Published FIDE
Official classical ranks
- World rank
- #526
- National rank · GER
- #30
Active players · Nov 2026 FIDE list ⓘ
Rating milestones
- Highest recorded rating
- 2507 Dec 2024
- Recorded years
- 2017–2026
- Archived games
- 514
Based on available monthly lists and saved games.
Rating history
FIDE rating history
Published rating lists through Nov 2026.
Download chart or data
View rating lists
Games
Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-11-11 (UTC).
Online games are identified from known tournament names, playing sites and PGN mode. Other games are listed as OTB (over-the-board).
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 501 | 2020-08-10 | 7th Prague Summer Open | Prague CZE | 4.17 | Marius Deuer | Frank Buchenau | Lost: 0-1 | 26 | Open |
| 502 | 2020-08-09 | 7th Prague Summer Open | Prague CZE | 2.4 | Lukas Cernousek | Marius Deuer | Lost: 1-0 | 36 | Open |
| 503 | 2019-11-23 | Heusenstamm Schloss Open | Heusenstamm GER | 4.16 | Marius Deuer | Uwe Kersten | Lost: 0-1 | 65 | Open |
| 504 | 2019-11-22 | Heusenstamm Schloss Open | Heusenstamm GER | 3.16 | Horst Alber | Marius Deuer | Draw: 1/2-1/2 | 26 | Open |
| 505 | 2019-08-25 | World Cadets U12 2019 | Weifang CHN | 5.8 | Marius Deuer | 16301765 | Lost: 0-1 | 53 | Open |
| 506 | 2019-08-24 | World Cadets U12 2019 | Weifang CHN | 4.3 | Mahendra Teja Mekala | Marius Deuer | Lost: 1-0 | 33 | Open |
| 507 | 2019-08-23 | World Cadets U12 2019 | Weifang CHN | 3.1 | Marius Deuer | Shah Dev | Won: 1-0 | 20 | Open |
| 508 | 2018-10-07 | German Youth Teams 2018 | Wuerzburg GER | 7.6 | Cristiano Amato | Marius Deuer | Won: 0-1 | 58 | Open |
| 509 | 2018-10-06 | German Youth Teams 2018 | Wuerzburg GER | 6.6 | Marius Deuer | Magdalina Genova | Draw: 1/2-1/2 | 41 | Open |
| 510 | 2018-10-05 | German Youth Teams 2018 | Wuerzburg GER | 5.6 | Theresa Reitz | Marius Deuer | Lost: 1-0 | 19 | Open |
| 511 | 2018-10-05 | German Youth Teams 2018 | Wuerzburg GER | 4.6 | Marius Deuer | Jana Basovskiy | Lost: 0-1 | 22 | Open |
| 512 | 2018-10-04 | German Youth Teams 2018 | Wuerzburg GER | 3.6 | Marius Deuer | Eva Schilay | Won: 1-0 | 25 | Open |
| 513 | 2018-10-03 | German Youth Teams 2018 | Wuerzburg GER | 2.6 | Melanie Muedder | Marius Deuer | Lost: 1-0 | 32 | Open |
| 514 | 2018-10-03 | German Youth Teams 2018 | Wuerzburg GER | 1.6 | Hannah Zell | Marius Deuer | Won: 0-1 | 32 | Open |
- vs Frank BuchenauLost · 0-1White · 2020-08-10 · Round 4.177th Prague Summer Open
- vs Lukas CernousekLost · 1-0Black · 2020-08-09 · Round 2.47th Prague Summer Open
- vs Uwe KerstenLost · 0-1White · 2019-11-23 · Round 4.16Heusenstamm Schloss Open
- vs Horst AlberDraw · ½–½Black · 2019-11-22 · Round 3.16Heusenstamm Schloss Open
- vs 16301765Lost · 0-1White · 2019-08-25 · Round 5.8World Cadets U12 2019
- vs Mahendra Teja MekalaLost · 1-0Black · 2019-08-24 · Round 4.3World Cadets U12 2019
- vs Shah DevWon · 1-0White · 2019-08-23 · Round 3.1World Cadets U12 2019
- vs Cristiano AmatoWon · 0-1Black · 2018-10-07 · Round 7.6German Youth Teams 2018
- vs Magdalina GenovaDraw · ½–½White · 2018-10-06 · Round 6.6German Youth Teams 2018
- vs Theresa ReitzLost · 1-0Black · 2018-10-05 · Round 5.6German Youth Teams 2018
- vs Jana BasovskiyLost · 0-1White · 2018-10-05 · Round 4.6German Youth Teams 2018
- vs Eva SchilayWon · 1-0White · 2018-10-04 · Round 3.6German Youth Teams 2018
- vs Melanie MuedderLost · 1-0Black · 2018-10-03 · Round 2.6German Youth Teams 2018
- vs Hannah ZellWon · 0-1Black · 2018-10-03 · Round 1.6German Youth Teams 2018
FIDE tournaments
| Date | Tournament | Type | Score |
|---|---|---|---|
| 2026-10-16 | 2. Bundesliga West AUT 2026-2027 Round 1-3 | Classical | 3 |
| 2026-10-10 | 2. Bundesliga Sued 2026-2027 Oktober 2026 | Classical | 1½ |
| 2026-08-29 | FE 28 Citta' di Trieste - A | Classical | 7½ |
| 2026-08-08 | FE 24 Spilimbergo - Master | Classical | 6 |