Prepare against Claus Rossen
DNK · World #8,968 classical · FIDE ID 1403222
When preparing against Claus Rossen, expect 1.e4 in 55% of White games. Against 1.e4 the reply is 1...c5 (41% of games); against 1.d4, 1...Nf6 (78%). Lowest win rate among frequent openings: Modern Defense as Black, 19.4% over 31 games.
Our database contains 501 games by Claus Rossen, covering Apr 2003 to Sep 2026. Below you'll find Claus Rossen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Claus Rossen 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 | 2,187 | 2,223 | Jul 2012 |
| Rapid | 2,080 | 2,132 | Jun 2023 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 501 | 185 | 143 | 173 | 36.9% |
| As White | 239 | 93 | 70 | 76 | 38.9% |
| As Black | 262 | 92 | 73 | 97 | 35.1% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Claus Rossen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Claus Rossen's side.
First moves as White (239 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 131 | 54.8% | 59.2% |
| d4 | 106 | 44.4% | 45.8% |
| c4 | 2 | 0.8% | 100.0% |
Main lines as White
- 1.e4 — 55% of White games, 59.2% score
- …c5 (38% of these games) — Rossen usually continues Nf3 (57.6% score)
- …e5 (21% of these games) — Rossen usually continues Nf3 (69.0% score)
- …c6 (15% of these games) — Rossen usually continues d4 (60.0% score)
- 1.d4 — 44% of White games, 45.8% score
- …Nf6 (45% of these games) — Rossen usually continues c4 (35.9% score)
- …d5 (30% of these games) — Rossen usually continues Nf3 (51.7% score)
- …f5 (8% of these games) — Rossen usually continues e4 (58.3% score)
As Black against 1.e4 (112 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 46 | 41.1% | 50.0% |
| d6 | 34 | 30.4% | 47.1% |
| g6 | 16 | 14.3% | 37.5% |
| e5 | 16 | 14.3% | 34.4% |
As Black against 1.d4 (105 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 82 | 78.1% | 54.3% |
| g6 | 14 | 13.3% | 39.3% |
| d6 | 5 | 4.8% | 60.0% |
| d5 | 2 | 1.9% | 50.0% |
| c5 | 1 | 1.0% | 50.0% |
| e6 | 1 | 1.0% | 50.0% |
Claus Rossen's chess games
All 501 games by Claus Rossen in the Chess.ceo database (Apr 2003 - Sep 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: 185 wins, 143 draws, 173 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C45 | Scotch Game | 17 | 10/2/5 | 58.8% |
| B23 | Sicilian: Closed | 16 | 6/4/6 | 37.5% |
| D02 | Queen's Pawn Game | 12 | 2/5/5 | 16.7% |
| C15 | French: Winawer Variation | 12 | 4/3/5 | 33.3% |
| A57 | Benoni Defense | 11 | 3/3/5 | 27.3% |
| E32 | Nimzo-Indian: Classical Variation | 10 | 2/5/3 | 20.0% |
| B10 | Caro-Kann | 9 | 2/1/6 | 22.2% |
| B28 | Sicilian | 9 | 3/4/2 | 33.3% |
| E04 | Catalan | 9 | 3/6/0 | 33.3% |
| B06 | Modern Defense | 9 | 8/0/1 | 88.9% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D85 | Grünfeld Defense | 38 | 18/12/8 | 47.4% |
| B07 | Pirc Defense | 33 | 12/6/15 | 36.4% |
| B06 | Modern Defense | 31 | 6/11/14 | 19.4% |
| B32 | Sicilian | 19 | 5/8/6 | 26.3% |
| D70 | Indian Defense | 18 | 6/6/6 | 33.3% |
| C42 | Petrov's Defense | 10 | 2/1/7 | 20.0% |
| D74 | English Opening | 8 | 2/2/4 | 25.0% |
| A34 | English Opening: Symmetrical | 7 | 1/2/4 | 14.3% |
| B30 | Sicilian: Rossolimo | 7 | 0/5/2 | 0.0% |
| A45 | Trompowsky Attack | 7 | 3/0/4 | 42.9% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 1999 | Harmen Jonkman | 2,421 | 21st Politiken Cup | E05 |
| Jul 2013 | Igor Teplyi | 2,409 | Horsens Lang Weekend Open | D85 |
| Jul 2014 | Tatev Abrahamyan | 2,366 | 36th Politiken Cup | B32 |
| Jul 2003 | Thorbjorn Bromann | 2,360 | 25th Politiken Cup | D02 |
| Jul 1999 | Bjorn Brinck-Claussen | 2,354 | 21st Politiken Cup | C01 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-DEN cand | 2018 | 34 | 15.5 | 2,169 |
| Helsingor Xtracon Open | 2019 | 30 | 17 | 2,039 |
| ch-DEN G7-1 | 2019 | 21 | 12 | 2,098 |
| DM i Lynskak 2026 | 2026 | 15 | 3.5 | 2,011 |
| 23rd Politiken Cup | 2001 | 11 | 6 | 2,267 |
| 22nd Politiken Cup | 2000 | 11 | 6 | 2,369 |
| 24th Politiken Cup | 2002 | 11 | 6.5 | 2,170 |
| 18th Politiken Cup | 1996 | 11 | 5 | 2,224 |
Interactive opening tree from all 501 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Claus Rossen's chess games?
501 games by Claus Rossen, from Apr 2003 to Sep 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 Claus Rossen has played.
What does Claus Rossen play on the first move as White?
Across 239 games with White in our database, Claus Rossen opens with 1.e4 (55% of games), 1.d4 (44% of games), 1.c4 (1% of games). Against 1.e4 as Black, Claus Rossen answers 1...c5 (41% of games), 1...d6 (30% of games), 1...g6 (14% of games). Against 1.d4: 1...Nf6 (78% of games), 1...g6 (13% of games), 1...d6 (5% of games).
What openings does Claus Rossen play as White?
As White, Claus Rossen's most-played openings in our database are: Scotch Game (17 games, 58.8% win rate); Sicilian: Closed (16 games, 37.5% win rate); Queen's Pawn Game (12 games, 16.7% win rate). The full breakdown of 239 games with White is in the table above.
What openings does Claus Rossen play as Black?
As Black, Claus Rossen most often plays: Grünfeld Defense (38 games, 47.4% win rate); Pirc Defense (33 games, 36.4% win rate); Modern Defense (31 games, 19.4% win rate). See the table above for the top ten Black openings across 262 games.
What is Claus Rossen's FIDE rating?
Claus Rossen is currently rated 2,187 in classical chess, 2,080 in rapid. Peak classical rating: 2,223 (Jul 2012).
How many games has Claus Rossen played?
Our database contains 501 games by Claus Rossen, covering Apr 2003 to Sep 2026. Overall record: 185 wins, 143 draws, 173 losses (36.9% win rate).
How do I prepare against Claus Rossen?
501 games by Claus Rossen 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.