Prepare against Marcus Dehn
DEU · World #21,868 classical · FIDE ID 4667093
Our database contains 265 games by Marcus Dehn, covering Apr 2003 to Aug 2026. Below you'll find Marcus Dehn's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Marcus Dehn before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 2,042 | 2,169 | Jan 2015 |
| Rapid | 2,132 | 2,136 | Sep 2015 |
| Blitz | 2,159 | 2,159 | Aug 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 265 | 100 | 64 | 101 | 37.7% |
| As White | 130 | 55 | 35 | 40 | 42.3% |
| As Black | 135 | 45 | 29 | 61 | 33.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Marcus Dehn's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Marcus Dehn's side.
First moves as White (130 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 108 | 83.1% | 56.0% |
| e4 | 11 | 8.5% | 54.5% |
| g3 | 4 | 3.1% | 75.0% |
| Nf3 | 4 | 3.1% | 25.0% |
| c3 | 2 | 1.5% | 100.0% |
| e3 | 1 | 0.8% | 0.0% |
Main lines as White
- 1.d4 — 83% of White games, 56.0% score
- …Nf6 (55% of these games) — Dehn usually continues Nf3 (60.6% score)
- …d5 (26% of these games) — Dehn usually continues Nf3 (53.6% score)
- …c5 (6% of these games) — Dehn usually continues c3 (66.7% score)
- 1.e4 — 8% of White games, 54.5% score
- …c5 (45% of these games) — Dehn usually continues Nc3 (16.7% score)
- …e6 (18% of these games) — Dehn usually continues d3 (100.0% score)
- …e5 (9% of these games) — Dehn usually continues Bc4 (0.0% score)
As Black against 1.e4 (58 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| g6 | 16 | 27.6% | 37.5% |
| d5 | 10 | 17.2% | 55.0% |
| b6 | 10 | 17.2% | 40.0% |
| c6 | 7 | 12.1% | 28.6% |
| d6 | 7 | 12.1% | 28.6% |
| e6 | 5 | 8.6% | 60.0% |
As Black against 1.d4 (51 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 13 | 25.5% | 57.7% |
| g6 | 12 | 23.5% | 54.2% |
| d6 | 7 | 13.7% | 64.3% |
| Nf6 | 7 | 13.7% | 50.0% |
| e6 | 5 | 9.8% | 30.0% |
| b6 | 3 | 5.9% | 0.0% |
Marcus Dehn's chess games
All 265 games by Marcus Dehn in the Chess.ceo database (Apr 2003 - Aug 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 100 wins, 64 draws, 101 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D02 | London System | 32 | 14/10/8 | 43.8% |
| D02 | Queen's Pawn Game | 25 | 9/8/8 | 36.0% |
| D02 | Indian Defense | 17 | 10/1/6 | 58.8% |
| A43 | Benoni Defense | 6 | 4/0/2 | 66.7% |
| A41 | Modern Defense | 5 | 0/1/4 | 0.0% |
| A80 | Dutch Defense | 4 | 1/1/2 | 25.0% |
| A40 | Horwitz Defense | 4 | 2/2/0 | 50.0% |
| A04 | Hungarian Opening | 3 | 2/1/0 | 66.7% |
| A45 | Lazard Gambit | 3 | 2/1/0 | 66.7% |
| A05 | Réti Opening | 3 | 0/2/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B06 | Modern Defense | 34 | 13/5/16 | 38.2% |
| B00 | Owen Defense | 10 | 4/0/6 | 40.0% |
| B01 | Scandinavian Defense: Main Line | 8 | 4/1/3 | 50.0% |
| D02 | Queen's Pawn Game | 7 | 3/3/1 | 42.9% |
| A07 | Réti Opening | 6 | 1/3/2 | 16.7% |
| B07 | Pirc Defense | 5 | 1/1/3 | 20.0% |
| B15 | Caro-Kann | 5 | 1/1/3 | 20.0% |
| A00 | Hungarian Opening | 4 | 2/0/2 | 50.0% |
| A40 | English Defense | 4 | 0/1/3 | 0.0% |
| C14 | French: Classical Variation | 4 | 3/0/1 | 75.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Dec 2008 | Daan Brandenburg | 2,436 | Groningen Open A | B01 |
| Dec 2016 | Stefan Kuipers | 2,408 | 54th Groningen Open A | A41 |
| Dec 2012 | Migchiel De Jong | 2,372 | 50th Groningen Open A | A47 |
| Jan 2000 | Balazs Szuk | 2,355 | Budapest WFG Open | A43 |
| Dec 2008 | Marijn Otte | 2,351 | Groningen Open A | C23 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Groningen Open A | 2010 | 23 | 9.5 | 2,094 |
| 51st Groningen Open A | 2013 | 9 | 3.5 | 2,158 |
| ch-GER Net blitz qual3 | 2020 | 9 | 5.5 | 2,018 |
| ch-GER Seniors 50 | 2018 | 9 | 6.5 | 2,142 |
| 31st ch-GER Seniors 50 | 2019 | 9 | 5.5 | 2,099 |
| 52nd Groningen Open | 2014 | 9 | 4 | 2,073 |
| Groningen Harmonie Open A | 2005 | 9 | 5.5 | 2,295 |
| 53rd Groningen Open A | 2015 | 9 | 4.5 | 2,161 |
Interactive opening tree from all 265 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Marcus Dehn's chess games?
265 games by Marcus Dehn, from Apr 2003 to Aug 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line Marcus Dehn has played.
What does Marcus Dehn play on the first move as White?
Across 130 games with White in our database, Marcus Dehn opens with 1.d4 (83% of games), 1.e4 (8% of games), 1.g3 (3% of games). Against 1.e4 as Black, Marcus Dehn answers 1...g6 (28% of games), 1...d5 (17% of games), 1...b6 (17% of games). Against 1.d4: 1...d5 (25% of games), 1...g6 (24% of games), 1...d6 (14% of games).
What openings does Marcus Dehn play as White?
As White, Marcus Dehn's most-played openings in our database are: London System (32 games, 43.8% win rate); Queen's Pawn Game (25 games, 36.0% win rate); Indian Defense (17 games, 58.8% win rate). The full breakdown of 130 games with White is in the table above.
What openings does Marcus Dehn play as Black?
As Black, Marcus Dehn most often plays: Modern Defense (34 games, 38.2% win rate); Owen Defense (10 games, 40.0% win rate); Scandinavian Defense: Main Line (8 games, 50.0% win rate). See the table above for the top ten Black openings across 135 games.
What is Marcus Dehn's FIDE rating?
Marcus Dehn is currently rated 2,042 in classical chess, 2,132 in rapid and 2,159 in blitz. Peak classical rating: 2,169 (Jan 2015).
How many games has Marcus Dehn played?
Our database contains 265 games by Marcus Dehn, covering Apr 2003 to Aug 2026. Overall record: 100 wins, 64 draws, 101 losses (37.7% win rate).
How do I prepare against Marcus Dehn?
265 games by Marcus Dehn reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.