Prepare against Claus Nis Andersen
DNK · World #68,599 classical · FIDE ID 1415735
When preparing against Claus Nis Andersen, expect 1.d4 in 76% of White games. Against 1.e4 the reply is 1...e5 (67% of games); against 1.d4, 1...Nf6 (83%).
Our database contains 85 games by Claus Nis Andersen, covering Oct 2007 to Jul 2026. Below you'll find Claus Nis Andersen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Claus Nis Andersen 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 | 1,826 | 1,892 | Jan 2008 |
| Rapid | 1,819 | 1,819 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 85 | 26 | 18 | 41 | 30.6% |
| As White | 42 | 10 | 10 | 22 | 23.8% |
| As Black | 43 | 16 | 8 | 19 | 37.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Claus Nis Andersen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Claus Nis Andersen's side.
First moves as White (42 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 32 | 76.2% | 35.9% |
| e4 | 7 | 16.7% | 28.6% |
| c4 | 2 | 4.8% | 75.0% |
| g3 | 1 | 2.4% | 0.0% |
Main lines as White
- 1.d4 — 76% of White games, 35.9% score
- …Nf6 (59% of these games) — Andersen usually continues c4 (36.8% score)
- …d5 (38% of these games) — Andersen usually continues c4 (31.8% score)
- …f5 (3% of these games) — Andersen usually continues c4 (100.0% score)
- 1.e4 — 17% of White games, 28.6% score
- …c5 (43% of these games) — Andersen usually continues Nf3 (0.0% score)
- …d5 (14% of these games) — Andersen usually continues exd5 (50.0% score)
- …e6 (14% of these games) — Andersen usually continues d4 (50.0% score)
As Black against 1.e4 (21 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 14 | 66.7% | 35.7% |
| c5 | 7 | 33.3% | 71.4% |
As Black against 1.d4 (12 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 10 | 83.3% | 40.0% |
| g6 | 1 | 8.3% | 50.0% |
| f5 | 1 | 8.3% | 100.0% |
Claus Nis Andersen's chess games
All 85 games by Claus Nis Andersen in the Chess.ceo database (Oct 2007 - Jul 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: 26 wins, 18 draws, 41 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D36 | Indian Defense | 5 | 3/0/2 | 60.0% |
| E91 | King's Indian Defense: Orthodox Variation | 5 | 1/0/4 | 20.0% |
| A31 | English Opening | 4 | 0/2/2 | 0.0% |
| D13 | Slav Defense | 4 | 0/1/3 | 0.0% |
| E11 | Bogo-Indian Defense | 2 | 1/0/1 | 50.0% |
| D87 | Grünfeld Defense | 2 | 0/2/0 | 0.0% |
| E15 | Queen's Indian Defense | 2 | 1/1/0 | 50.0% |
| A63 | Catalan | 2 | 1/1/0 | 50.0% |
| C02 | French: Advance Variation | 1 | 0/1/0 | 0.0% |
| B13 | Caro-Kann: Exchange Variation | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C42 | Petrov's Defense | 14 | 4/2/8 | 28.6% |
| D85 | Grünfeld Defense | 8 | 3/1/4 | 37.5% |
| A36 | English Opening | 2 | 1/0/1 | 50.0% |
| D02 | King's Indian Defense: Fianchetto Variation | 2 | 0/1/1 | 0.0% |
| A00 | Saragossa Opening | 2 | 0/1/1 | 0.0% |
| B30 | Sicilian | 2 | 2/0/0 | 100.0% |
| A01 | Nimzovich-Larsen attack | 1 | 1/0/0 | 100.0% |
| B22 | Sicilian: Alapin | 1 | 1/0/0 | 100.0% |
| B23 | Sicilian: Closed | 1 | 1/0/0 | 100.0% |
| B51 | Sicilian: Rossolimo | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Oct 2015 | Dalibor Cip | 2,146 | 12th Calvia Amateur Open | D74 |
| Dec 2025 | Martin Lee Lauritsen | 2,115 | Obro x CXU New Year 2025 | A85 |
| Jul 2009 | Poul Munk | 1,996 | 31st Politiken Cup | D36 |
| Jul 2015 | Guney Ozcan | 1,903 | 37th Politiken Cup | D35 |
| Aug 2010 | Per Jacobsen | 1,689 | 32nd Politiken Cup | A01 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 36th Politiken Cup | 2014 | 10 | 4 | 1,719 |
| 33rd Politiken Cup | 2011 | 10 | 4.5 | 1,728 |
| 32nd Politiken Cup | 2010 | 10 | 4.5 | 1,906 |
| Helsingor Xtracon Open | 2016 | 10 | 4.5 | 1,779 |
| 35th Politiken Cup | 2013 | 10 | 4.5 | 1,825 |
| 31st Politiken Cup | 2009 | 10 | 4.5 | 2,012 |
| 37th Politiken Cup | 2015 | 9 | 3.5 | 1,864 |
| Obro x CXU New Year 2025 | 2025 | 5 | 1.5 | 1,794 |
Interactive opening tree from all 85 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Claus Nis Andersen's chess games?
85 games by Claus Nis Andersen, from Oct 2007 to Jul 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 Nis Andersen has played.
What does Claus Nis Andersen play on the first move as White?
Across 42 games with White in our database, Claus Nis Andersen opens with 1.d4 (76% of games), 1.e4 (17% of games), 1.c4 (5% of games). Against 1.e4 as Black, Claus Nis Andersen answers 1...e5 (67% of games), 1...c5 (33% of games). Against 1.d4: 1...Nf6 (83% of games), 1...g6 (8% of games), 1...f5 (8% of games).
What openings does Claus Nis Andersen play as White?
As White, Claus Nis Andersen's most-played openings in our database are: Indian Defense (5 games, 60.0% win rate); King's Indian Defense: Orthodox Variation (5 games, 20.0% win rate); English Opening (4 games, 0.0% win rate). The full breakdown of 42 games with White is in the table above.
What openings does Claus Nis Andersen play as Black?
As Black, Claus Nis Andersen most often plays: Petrov's Defense (14 games, 28.6% win rate); Grünfeld Defense (8 games, 37.5% win rate); English Opening (2 games, 50.0% win rate). See the table above for the top ten Black openings across 43 games.
What is Claus Nis Andersen's FIDE rating?
Claus Nis Andersen is currently rated 1,826 in classical chess, 1,819 in rapid. Peak classical rating: 1,892 (Jan 2008).
How many games has Claus Nis Andersen played?
Our database contains 85 games by Claus Nis Andersen, covering Oct 2007 to Jul 2026. Overall record: 26 wins, 18 draws, 41 losses (30.6% win rate).
How do I prepare against Claus Nis Andersen?
85 games by Claus Nis Andersen 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.