Prepare against Stefan Arnalds
Iceland · World #73,770 classical · FIDE ID 2304821
When preparing against Stefan Arnalds, expect 1.d4 in 85% of White games. Against 1.e4 the reply is 1...c5 (80% of games); against 1.d4, 1...Nf6 (92%). Lowest win rate among frequent openings: Sicilian: Four Knights as Black, 15.0% over 20 games.
Our database contains 181 games by Stefan Arnalds, covering Jan 2009 to Jul 2026. Below you'll find Stefan Arnalds's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Stefan Arnalds 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 | 1,809 | 2,052 | Mar 2017 |
| Rapid | 1,939 | 2,005 | Dec 2013 |
| Blitz | 1,863 | 1,997 | Aug 2014 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 181 | 61 | 31 | 89 | 33.7% |
| As White | 99 | 42 | 20 | 37 | 42.4% |
| As Black | 82 | 19 | 11 | 52 | 23.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Stefan Arnalds's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Stefan Arnalds's side.
First moves as White (99 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 84 | 84.8% | 51.8% |
| Nf3 | 9 | 9.1% | 44.4% |
| e4 | 6 | 6.1% | 75.0% |
Main lines as White
- 1.d4 — 85% of White games, 51.8% score
- …Nf6 (56% of these games) — Arnalds usually continues c4 (50.0% score)
- …d5 (27% of these games) — Arnalds usually continues c4 (55.0% score)
- …f5 (7% of these games) — Arnalds usually continues Qd3 (70.0% score)
- 1.Nf3 — 9% of White games, 44.4% score
- …Nf6 (67% of these games) — Arnalds usually continues g3 (40.0% score)
- …d6 (11% of these games) — Arnalds usually continues d4 (100.0% score)
- …g6 (11% of these games) — Arnalds usually continues d4 (0.0% score)
As Black against 1.e4 (46 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 37 | 80.4% | 32.4% |
| d5 | 7 | 15.2% | 35.7% |
| d6 | 1 | 2.2% | 100.0% |
As Black against 1.d4 (24 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 22 | 91.7% | 20.5% |
| d5 | 1 | 4.2% | 100.0% |
| d6 | 1 | 4.2% | 0.0% |
Stefan Arnalds's chess games
All 181 games by Stefan Arnalds in the Chess.ceo database (Jan 2009 - 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: 61 wins, 31 draws, 89 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E32 | Nimzo-Indian: Classical Variation | 11 | 4/3/4 | 36.4% |
| E83 | King's Indian: Sämisch | 10 | 3/2/5 | 30.0% |
| D36 | Queen's Gambit Declined | 8 | 5/1/2 | 62.5% |
| D10 | Slav Defense | 8 | 2/3/3 | 25.0% |
| A67 | Benoni Defense | 8 | 4/1/3 | 50.0% |
| E01 | Queen's Pawn Game | 7 | 2/1/4 | 28.6% |
| A31 | English Opening | 7 | 3/3/1 | 42.9% |
| D88 | Grünfeld Defense | 6 | 3/0/3 | 50.0% |
| A80 | Dutch Defense | 6 | 3/1/2 | 50.0% |
| A53 | Indian Defense | 5 | 3/1/1 | 60.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B45 | Sicilian: Four Knights | 20 | 3/3/14 | 15.0% |
| B40 | Sicilian | 9 | 3/2/4 | 33.3% |
| B01 | Scandinavian Defense: Main Line | 7 | 2/1/4 | 28.6% |
| A36 | English Opening | 6 | 1/0/5 | 16.7% |
| A49 | King's Indian Defense: Fianchetto Variation | 4 | 1/1/2 | 25.0% |
| D37 | Indian Defense | 4 | 0/0/4 | 0.0% |
| E90 | King's Indian Defense: Orthodox Variation | 4 | 2/0/2 | 50.0% |
| D84 | Grünfeld Defense | 4 | 2/0/2 | 50.0% |
| B23 | Sicilian: Closed | 4 | 2/0/2 | 50.0% |
| D94 | King's Indian Defense | 3 | 0/1/2 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Sep 2015 | Einar Hjalti Jensson | 2,392 | chT-ISL 1516 | D36 |
| Mar 2009 | Eric Moskow | 2,225 | Reykjavik Open | A32 |
| Mar 2018 | Kristjan Edvardsson | 2,217 | Reykjavik Open | A85 |
| Mar 2016 | Lenka Ptacnikova | 2,192 | Reykjavik Open | E32 |
| Sep 2016 | Gunnar K Gunnarsson | 2,150 | chT-ISL 1617 | E88 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Reykjavik Open | 2025 | 63 | 28 | 1,876 |
| ch-Reykjavik TR B | 2008 | 9 | 4 | 1,932 |
| ch-Reykjavik | 2009 | 9 | 4.5 | 1,984 |
| Reykjavik Open 2026 | 2026 | 9 | 3.5 | 1,704 |
| Reykjavik Kvika Open | 2022 | 9 | 3.5 | 1,866 |
| chT-ISL 1516 | 2016 | 7 | 4 | 2,177 |
| Akureyri Icelandic Open | 2019 | 7 | 4 | 1,800 |
| chT2-ISL 1819 | 2019 | 7 | 2.5 | 1,893 |
Interactive opening tree from all 181 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Stefan Arnalds's chess games?
181 games by Stefan Arnalds, from Jan 2009 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 Stefan Arnalds has played.
What does Stefan Arnalds play on the first move as White?
Across 99 games with White in our database, Stefan Arnalds opens with 1.d4 (85% of games), 1.Nf3 (9% of games), 1.e4 (6% of games). Against 1.e4 as Black, Stefan Arnalds answers 1...c5 (80% of games), 1...d5 (15% of games), 1...d6 (2% of games). Against 1.d4: 1...Nf6 (92% of games), 1...d5 (4% of games), 1...d6 (4% of games).
What openings does Stefan Arnalds play as White?
As White, Stefan Arnalds's most-played openings in our database are: Nimzo-Indian: Classical Variation (11 games, 36.4% win rate); King's Indian: Sämisch (10 games, 30.0% win rate); Queen's Gambit Declined (8 games, 62.5% win rate). The full breakdown of 99 games with White is in the table above.
What openings does Stefan Arnalds play as Black?
As Black, Stefan Arnalds most often plays: Sicilian: Four Knights (20 games, 15.0% win rate); Sicilian (9 games, 33.3% win rate); Scandinavian Defense: Main Line (7 games, 28.6% win rate). See the table above for the top ten Black openings across 82 games.
What is Stefan Arnalds's FIDE rating?
Stefan Arnalds is currently rated 1,809 in classical chess, 1,939 in rapid and 1,863 in blitz. Peak classical rating: 2,052 (Mar 2017).
How many games has Stefan Arnalds played?
Our database contains 181 games by Stefan Arnalds, covering Jan 2009 to Jul 2026. Overall record: 61 wins, 31 draws, 89 losses (33.7% win rate).
How do I prepare against Stefan Arnalds?
181 games by Stefan Arnalds 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.