Prepare against Nils Decker
DEU · World #13,915 classical · FIDE ID 4699670
Our database contains 108 games by Nils Decker, covering Oct 2004 to Jul 2026. Below you'll find Nils Decker's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Nils Decker 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 | 2,117 | 2,136 | Feb 2024 |
| Rapid | 2,102 | 2,102 | Jul 2026 |
| Blitz | 2,004 | 2,004 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 108 | 47 | 16 | 45 | 43.5% |
| As White | 53 | 26 | 6 | 21 | 49.1% |
| As Black | 55 | 21 | 10 | 24 | 38.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Nils Decker's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Nils Decker's side.
First moves as White (53 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 35 | 66.0% | 52.9% |
| d4 | 10 | 18.9% | 65.0% |
| Nf3 | 6 | 11.3% | 41.7% |
| c4 | 2 | 3.8% | 75.0% |
Main lines as White
- 1.e4 — 66% of White games, 52.9% score
- …c5 (40% of these games) — Decker usually continues Nf3 (44.4% score)
- …e5 (23% of these games) — Decker usually continues Nf3 (62.5% score)
- …e6 (17% of these games) — Decker usually continues d4 (20.0% score)
- 1.d4 — 19% of White games, 65.0% score
- …Nf6 (60% of these games) — Decker usually continues Bg5 (83.3% score)
- …d5 (30% of these games) — Decker usually continues Nf3 (50.0% score)
- …d6 (10% of these games) — Decker usually continues e4 (0.0% score)
As Black against 1.e4 (23 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 14 | 60.9% | 28.6% |
| e6 | 6 | 26.1% | 41.7% |
| d6 | 1 | 4.3% | 0.0% |
| e5 | 1 | 4.3% | 100.0% |
| g6 | 1 | 4.3% | 100.0% |
As Black against 1.d4 (21 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 12 | 57.1% | 54.2% |
| d5 | 4 | 19.0% | 62.5% |
| d6 | 2 | 9.5% | 100.0% |
| c5 | 2 | 9.5% | 50.0% |
| g6 | 1 | 4.8% | 0.0% |
Nils Decker's chess games
All 108 games by Nils Decker in the Chess.ceo database (Oct 2004 - 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: 47 wins, 16 draws, 45 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B50 | Sicilian | 6 | 2/1/3 | 33.3% |
| C48 | Four Knights Game: Spanish Variation | 4 | 2/0/2 | 50.0% |
| B22 | Sicilian: Alapin | 3 | 1/0/2 | 33.3% |
| A45 | Trompowsky Attack | 3 | 2/1/0 | 66.7% |
| B12 | Caro-Kann: Advance Variation | 3 | 3/0/0 | 100.0% |
| D07 | Queen's Pawn Game | 3 | 1/1/1 | 33.3% |
| A07 | Réti Opening | 2 | 1/0/1 | 50.0% |
| C11 | French: Classical Variation | 2 | 0/0/2 | 0.0% |
| C01 | French: Winawer Variation | 2 | 1/0/1 | 50.0% |
| A41 | Modern Defense | 2 | 1/0/1 | 50.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D24 | Indian Defense | 7 | 1/2/4 | 14.3% |
| B39 | Sicilian: Accelerated Dragon | 5 | 0/0/5 | 0.0% |
| B40 | Sicilian | 4 | 3/0/1 | 75.0% |
| A09 | Réti Opening | 3 | 1/0/2 | 33.3% |
| A22 | English Opening: Reverse Sicilian | 3 | 2/1/0 | 66.7% |
| C10 | French Defense | 3 | 1/1/1 | 33.3% |
| A43 | Benoni Defense | 3 | 1/1/1 | 33.3% |
| E05 | Catalan | 2 | 0/1/1 | 0.0% |
| D02 | London System | 2 | 1/1/0 | 50.0% |
| A41 | Modern Defense | 2 | 1/0/1 | 50.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 2023 | Etienne Goudriaan | 2,322 | 44th Ghent Open B | B12 |
| Jul 2020 | Pascal Karsay | 2,304 | 53rd Biel HTO | A22 |
| Oct 2020 | Matthias Kierzek | 2,256 | 42nd Arco Open | D00 |
| Jul 2020 | Claude Adrian | 2,246 | 53rd Biel HTO | C01 |
| Mar 2021 | Marc Schulze | 2,222 | GER-chT Online Liga 1 GpB | B01 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 53rd Biel HTO | 2020 | 9 | 5.5 | 2,234 |
| 42nd Arco Open | 2020 | 9 | 5.5 | 2,159 |
| ch-GER U18 | 2006 | 9 | 2.5 | 1,902 |
| Wroclaw Open | 2017 | 8 | 4.5 | 2,099 |
| ch-Berlin U18 | 2006 | 7 | 5 | 1,915 |
| 3rd Cidade De Lagos Open | 2025 | 7 | 4 | 2,216 |
| Berlin Spring Open A | 2014 | 7 | 2.5 | 1,883 |
| ch-Mecklenburg VP Open | 2019 | 7 | 4 | 1,476 |
Interactive opening tree from all 108 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Nils Decker's chess games?
108 games by Nils Decker, from Oct 2004 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 Nils Decker has played.
What does Nils Decker play on the first move as White?
Across 53 games with White in our database, Nils Decker opens with 1.e4 (66% of games), 1.d4 (19% of games), 1.Nf3 (11% of games). Against 1.e4 as Black, Nils Decker answers 1...c5 (61% of games), 1...e6 (26% of games), 1...d6 (4% of games). Against 1.d4: 1...Nf6 (57% of games), 1...d5 (19% of games), 1...d6 (10% of games).
What openings does Nils Decker play as White?
As White, Nils Decker's most-played openings in our database are: Sicilian (6 games, 33.3% win rate); Four Knights Game: Spanish Variation (4 games, 50.0% win rate); Sicilian: Alapin (3 games, 33.3% win rate). The full breakdown of 53 games with White is in the table above.
What openings does Nils Decker play as Black?
As Black, Nils Decker most often plays: Indian Defense (7 games, 14.3% win rate); Sicilian: Accelerated Dragon (5 games, 0.0% win rate); Sicilian (4 games, 75.0% win rate). See the table above for the top ten Black openings across 55 games.
What is Nils Decker's FIDE rating?
Nils Decker is currently rated 2,117 in classical chess, 2,102 in rapid and 2,004 in blitz. Peak classical rating: 2,136 (Feb 2024).
How many games has Nils Decker played?
Our database contains 108 games by Nils Decker, covering Oct 2004 to Jul 2026. Overall record: 47 wins, 16 draws, 45 losses (43.5% win rate).
How do I prepare against Nils Decker?
108 games by Nils Decker 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.