Prepare against Koen Achtergaele
Belgium · World #38,140 classical · FIDE ID 204323
Our database contains 82 games by Koen Achtergaele, covering Apr 2004 to Aug 2026. Below you'll find Koen Achtergaele's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Koen Achtergaele 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 | 1,943 | 2,198 | Jan 2005 |
| Rapid | 1,991 | 2,053 | Mar 2022 |
| Blitz | 2,001 | 2,053 | Mar 2022 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 82 | 29 | 28 | 25 | 35.4% |
| As White | 39 | 16 | 14 | 9 | 41.0% |
| As Black | 43 | 13 | 14 | 16 | 30.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Koen Achtergaele's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Koen Achtergaele's side.
First moves as White (39 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 29 | 74.4% | 51.7% |
| d4 | 9 | 23.1% | 77.8% |
| e3 | 1 | 2.6% | 100.0% |
Main lines as White
- 1.e4 — 74% of White games, 51.7% score
- …c5 (55% of these games) — Achtergaele usually continues c3 (62.5% score)
- …e5 (17% of these games) — Achtergaele usually continues Nf3 (50.0% score)
- …e6 (7% of these games) — Achtergaele usually continues d4 (25.0% score)
- 1.d4 — 23% of White games, 77.8% score
- …Nf6 (44% of these games) — Achtergaele usually continues Nf3 (100.0% score)
- …g6 (33% of these games) — Achtergaele usually continues e4 (66.7% score)
- …d6 (11% of these games) — Achtergaele usually continues Nf3 (0.0% score)
As Black against 1.e4 (20 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 11 | 55.0% | 59.1% |
| e5 | 9 | 45.0% | 33.3% |
As Black against 1.d4 (17 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 8 | 47.1% | 43.8% |
| e6 | 8 | 47.1% | 37.5% |
| Nf6 | 1 | 5.9% | 50.0% |
Koen Achtergaele's chess games
All 82 games by Koen Achtergaele in the Chess.ceo database (Apr 2004 - 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: 29 wins, 28 draws, 25 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B22 | Sicilian: Alapin | 8 | 3/4/1 | 37.5% |
| B22 | Sicilian | 7 | 3/2/2 | 42.9% |
| B06 | Modern Defense | 3 | 1/2/0 | 33.3% |
| C50 | Italian Game | 3 | 2/0/1 | 66.7% |
| B01 | Scandinavian Defense: Main Line | 2 | 0/2/0 | 0.0% |
| D00 | Indian Defense | 2 | 2/0/0 | 100.0% |
| B02 | Alekhine Defense | 2 | 0/1/1 | 0.0% |
| B08 | King's Indian Defense | 1 | 1/0/0 | 100.0% |
| B00 | Nimzowitsch Defense | 1 | 1/0/0 | 100.0% |
| D31 | Queen's Pawn Game | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D34 | Queen's Gambit Declined | 9 | 1/3/5 | 11.1% |
| C42 | Petrov's Defense | 6 | 2/1/3 | 33.3% |
| C11 | French: Classical Variation | 4 | 1/2/1 | 25.0% |
| C00 | King's Indian Attack | 3 | 1/0/2 | 33.3% |
| C25 | Vienna Game | 2 | 0/0/2 | 0.0% |
| D34 | Catalan | 2 | 0/2/0 | 0.0% |
| C01 | French: Exchange Variation | 2 | 2/0/0 | 100.0% |
| C06 | French: Tarrasch Variation | 2 | 0/1/1 | 0.0% |
| D02 | Horwitz Defense | 2 | 1/1/0 | 50.0% |
| D02 | Queen's Pawn Game | 2 | 1/0/1 | 50.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Feb 2008 | Alexander I Petrushin | 2,426 | 4th Moscow Open B | B00 |
| Aug 2010 | Bart Karstens | 2,251 | 26th Geraardsbergen Open | B08 |
| Aug 2009 | Jan Balje | 2,202 | 25th Geraardsbergen Open | B22 |
| Feb 2008 | Dmitry Leonov | 2,201 | 4th Moscow Open B | E14 |
| Dec 2001 | Michael Huettig | 2,197 | 18th Boeblingen Open | D34 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 4th Moscow Open B | 2008 | 9 | 4 | 2,157 |
| 25th Geraardsbergen Open | 2009 | 9 | 6 | 2,242 |
| 2nd Van Leeuwen Memorial | 2013 | 9 | 5.5 | 2,141 |
| 26th Geraardsbergen Open | 2010 | 8 | 5.5 | 2,154 |
| Wachtebeke B | 2020 | 8 | 5 | 2,159 |
| 27th Geraardsbergen Open | 2011 | 7 | 4.5 | 1,967 |
| chA-Ghent VSF | 2007 | 7 | 3 | 2,016 |
| 21st Bethune Open | 2000 | 6 | 3 | 2,093 |
Interactive opening tree from all 82 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Koen Achtergaele's chess games?
82 games by Koen Achtergaele, from Apr 2004 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 Koen Achtergaele has played.
What does Koen Achtergaele play on the first move as White?
Across 39 games with White in our database, Koen Achtergaele opens with 1.e4 (74% of games), 1.d4 (23% of games), 1.e3 (3% of games). Against 1.e4 as Black, Koen Achtergaele answers 1...e6 (55% of games), 1...e5 (45% of games). Against 1.d4: 1...d5 (47% of games), 1...e6 (47% of games), 1...Nf6 (6% of games).
What openings does Koen Achtergaele play as White?
As White, Koen Achtergaele's most-played openings in our database are: Sicilian: Alapin (8 games, 37.5% win rate); Sicilian (7 games, 42.9% win rate); Modern Defense (3 games, 33.3% win rate). The full breakdown of 39 games with White is in the table above.
What openings does Koen Achtergaele play as Black?
As Black, Koen Achtergaele most often plays: Queen's Gambit Declined (9 games, 11.1% win rate); Petrov's Defense (6 games, 33.3% win rate); French: Classical Variation (4 games, 25.0% win rate). See the table above for the top ten Black openings across 43 games.
What is Koen Achtergaele's FIDE rating?
Koen Achtergaele is currently rated 1,943 in classical chess, 1,991 in rapid and 2,001 in blitz. Peak classical rating: 2,198 (Jan 2005).
How many games has Koen Achtergaele played?
Our database contains 82 games by Koen Achtergaele, covering Apr 2004 to Aug 2026. Overall record: 29 wins, 28 draws, 25 losses (35.4% win rate).
How do I prepare against Koen Achtergaele?
82 games by Koen Achtergaele 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.