Prepare against Andreas Aerni
CHE · World #10,624 classical · FIDE ID 1313185
Our database contains 138 games by Andreas Aerni, covering Apr 2006 to Jul 2026. Below you'll find Andreas Aerni's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Andreas Aerni 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 | 2,160 | 2,209 | Jan 2022 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 138 | 47 | 28 | 63 | 34.1% |
| As White | 73 | 33 | 19 | 21 | 45.2% |
| As Black | 65 | 14 | 9 | 42 | 21.5% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Andreas Aerni's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Andreas Aerni's side.
First moves as White (73 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 39 | 53.4% | 50.0% |
| d4 | 34 | 46.6% | 67.6% |
Main lines as White
- 1.e4 — 53% of White games, 50.0% score
- …c5 (49% of these games) — Aerni usually continues c3 (29.2% score)
- …e5 (13% of these games) — Aerni usually continues Nf3 (70.0% score)
- …e6 (10% of these games) — Aerni usually continues d4 (25.0% score)
- 1.d4 — 47% of White games, 67.6% score
- …Nf6 (41% of these games) — Aerni usually continues Bg5 (84.6% score)
- …d5 (24% of these games) — Aerni usually continues c4 (75.0% score)
- …e6 (21% of these games) — Aerni usually continues Nf3 (62.5% score)
As Black against 1.e4 (26 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 21 | 80.8% | 23.8% |
| e5 | 3 | 11.5% | 66.7% |
| d6 | 2 | 7.7% | 75.0% |
As Black against 1.d4 (28 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 18 | 64.3% | 25.0% |
| Nf6 | 5 | 17.9% | 10.0% |
| e6 | 4 | 14.3% | 0.0% |
| d6 | 1 | 3.6% | 0.0% |
Andreas Aerni's chess games
All 138 games by Andreas Aerni in the Chess.ceo database (Apr 2006 - 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, 28 draws, 63 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A45 | Trompowsky Attack | 12 | 10/2/0 | 83.3% |
| B22 | Sicilian: Alapin | 12 | 2/3/7 | 16.7% |
| B31 | Sicilian | 7 | 4/3/0 | 57.1% |
| B06 | Modern Defense | 6 | 2/2/2 | 33.3% |
| D30 | Horwitz Defense | 5 | 3/1/1 | 60.0% |
| C47 | Four Knights Game: Scotch Variation | 4 | 2/2/0 | 50.0% |
| C00 | French Defense | 3 | 1/0/2 | 33.3% |
| D15 | Slav Defense | 3 | 1/2/0 | 33.3% |
| B07 | Pirc Defense | 2 | 1/0/1 | 50.0% |
| D36 | Indian Defense | 2 | 0/1/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B01 | Scandinavian Defense: Main Line | 19 | 3/2/14 | 15.8% |
| D37 | Indian Defense | 6 | 1/1/4 | 16.7% |
| D02 | Queen's Pawn Game | 4 | 1/1/2 | 25.0% |
| A80 | Horwitz Defense | 4 | 0/0/4 | 0.0% |
| A13 | English Opening | 3 | 1/1/1 | 33.3% |
| D32 | Queen's Gambit Declined | 3 | 0/1/2 | 0.0% |
| D00 | Blackmar-Diemer Gambit | 2 | 1/0/1 | 50.0% |
| D20 | Queen's Gambit Accepted | 2 | 0/0/2 | 0.0% |
| E08 | Catalan | 2 | 0/0/2 | 0.0% |
| A67 | Benoni Defense | 2 | 0/1/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 2011 | Antoaneta Stefanova | 2,546 | 9th Gibraltar Masters | C47 |
| Apr 2010 | Andreas Huss | 2,324 | 22nd Lenk Open | B15 |
| Jul 2010 | David Burnier | 2,309 | ch-SUI Open | C47 |
| Nov 2008 | Stefan Spiegel | 2,265 | Oberliga Baden 0809 | A45 |
| Jan 2007 | Nicolas Curien | 2,261 | 9th Basel Hilton Open | D00 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 7th Gibraltar Masters | 2009 | 10 | 4.5 | 2,184 |
| 8th Gibraltar Masters | 2010 | 10 | 4.5 | 2,118 |
| 9th Gibraltar Masters | 2011 | 10 | 4 | 2,200 |
| 3rd Oslo Sveins Open | 2010 | 8 | 3.5 | 1,938 |
| 12th Basel Hilton Open | 2010 | 7 | 3.5 | 2,171 |
| ch-Stuttgart A int | 2010 | 7 | 4 | 2,134 |
| ch-SUI Open | 2010 | 7 | 2 | 2,187 |
| Basel Open | 2016 | 7 | 4 | 2,092 |
Interactive opening tree from all 138 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Andreas Aerni's chess games?
138 games by Andreas Aerni, from Apr 2006 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 Andreas Aerni has played.
What does Andreas Aerni play on the first move as White?
Across 73 games with White in our database, Andreas Aerni opens with 1.e4 (53% of games), 1.d4 (47% of games). Against 1.e4 as Black, Andreas Aerni answers 1...d5 (81% of games), 1...e5 (12% of games), 1...d6 (8% of games). Against 1.d4: 1...d5 (64% of games), 1...Nf6 (18% of games), 1...e6 (14% of games).
What openings does Andreas Aerni play as White?
As White, Andreas Aerni's most-played openings in our database are: Trompowsky Attack (12 games, 83.3% win rate); Sicilian: Alapin (12 games, 16.7% win rate); Sicilian (7 games, 57.1% win rate). The full breakdown of 73 games with White is in the table above.
What openings does Andreas Aerni play as Black?
As Black, Andreas Aerni most often plays: Scandinavian Defense: Main Line (19 games, 15.8% win rate); Indian Defense (6 games, 16.7% win rate); Queen's Pawn Game (4 games, 25.0% win rate). See the table above for the top ten Black openings across 65 games.
What is Andreas Aerni's FIDE rating?
Andreas Aerni is currently rated 2,160 in classical chess. Peak classical rating: 2,209 (Jan 2022).
How many games has Andreas Aerni played?
Our database contains 138 games by Andreas Aerni, covering Apr 2006 to Jul 2026. Overall record: 47 wins, 28 draws, 63 losses (34.1% win rate).
How do I prepare against Andreas Aerni?
138 games by Andreas Aerni 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.