Prepare against Jon Arni Halldorsson
CM · Iceland · World #18,343 classical · FIDE ID 2301075
Our database contains 478 games by Jon Arni Halldorsson, covering Apr 2003 to Aug 2026. Below you'll find Jon Arni Halldorsson's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jon Arni Halldorsson 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 | 2,072 | 2,222 | Feb 2013 |
| Rapid | 2,082 | 2,213 | Jul 2013 |
| Blitz | 2,002 | 2,134 | Nov 2017 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 478 | 153 | 155 | 170 | 32.0% |
| As White | 240 | 84 | 82 | 74 | 35.0% |
| As Black | 238 | 69 | 73 | 96 | 29.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jon Arni Halldorsson's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jon Arni Halldorsson's side.
First moves as White (240 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 238 | 99.2% | 51.7% |
| Nf3 | 2 | 0.8% | 100.0% |
Main lines as White
- 1.d4 — 99% of White games, 51.7% score
- …Nf6 (56% of these games) — Halldorsson usually continues Nf3 (44.6% score)
- …d5 (26% of these games) — Halldorsson usually continues c4 (61.8% score)
- …f5 (7% of these games) — Halldorsson usually continues g3 (53.1% score)
- 1.Nf3 — 1% of White games, 100.0% score
- …d5 (50% of these games) — Halldorsson usually continues d4 (100.0% score)
- …b6 (50% of these games) — Halldorsson usually continues g3 (100.0% score)
As Black against 1.e4 (98 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 97 | 99.0% | 41.8% |
| c6 | 1 | 1.0% | 50.0% |
As Black against 1.d4 (90 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 79 | 87.8% | 46.2% |
| f5 | 6 | 6.7% | 58.3% |
| e6 | 3 | 3.3% | 83.3% |
| Nf6 | 1 | 1.1% | 100.0% |
| g6 | 1 | 1.1% | 100.0% |
Jon Arni Halldorsson's chess games
All 478 games by Jon Arni Halldorsson in the Chess.ceo database (Apr 2003 - 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: 153 wins, 155 draws, 170 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A46 | Indian Defense | 38 | 9/12/17 | 23.7% |
| D13 | Slav Defense | 33 | 14/9/10 | 42.4% |
| E11 | Catalan | 27 | 9/11/7 | 33.3% |
| A43 | Benoni Defense | 18 | 10/6/2 | 55.6% |
| D03 | Torre Attack | 17 | 3/7/7 | 17.6% |
| A81 | Dutch Defense | 16 | 5/7/4 | 31.3% |
| E15 | Queen's Indian Defense | 15 | 7/4/4 | 46.7% |
| E92 | King's Indian Defense: Orthodox Variation | 10 | 5/3/2 | 50.0% |
| E11 | Bogo-Indian Defense | 9 | 1/3/5 | 11.1% |
| B07 | Modern Defense | 6 | 2/3/1 | 33.3% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D17 | Slav Defense | 62 | 16/20/26 | 25.8% |
| C06 | French: Tarrasch Variation | 17 | 4/5/8 | 23.5% |
| C02 | French: Advance Variation | 16 | 5/3/8 | 31.3% |
| C11 | French: Classical Variation | 16 | 3/8/5 | 18.8% |
| C00 | French Defense | 14 | 3/7/4 | 21.4% |
| A08 | King's Indian Attack | 13 | 3/2/8 | 23.1% |
| C18 | French: Winawer Variation | 12 | 3/3/6 | 25.0% |
| A11 | English Opening: Slav Setup | 12 | 2/1/9 | 16.7% |
| A12 | Réti Opening | 11 | 3/3/5 | 27.3% |
| C01 | French: Exchange Variation | 9 | 4/3/2 | 44.4% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Mar 2009 | Stefan Macak | 2,527 | Reykjavik Open | A48 |
| Oct 2010 | Karl Thorsteins | 2,474 | chT-ISL 1011 | D14 |
| Mar 2011 | Maxim Barth Stanford | 2,385 | Reykjavik Open | A06 |
| Nov 2001 | Ingvar Asmundsson | 2,359 | Jonsson Memorial Open | A30 |
| Mar 2015 | Kazim Gulamali | 2,350 | Reykjavik Open | C02 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Reykjavik Open | 2019 | 85 | 39.5 | 2,158 |
| Chrudim Open | 2003 | 27 | 16.5 | 2,208 |
| ch-ISL | 2011 | 20 | 3.5 | 2,148 |
| Budapest FS04 FM-A | 2004 | 11 | 4 | 2,016 |
| 21st ch-EU | 2021 | 11 | 4.5 | 1,921 |
| chT1-ISL 2122 | 2022 | 10 | 3.5 | 2,021 |
| Jonsson Memorial Open | 2001 | 10 | 5 | 2,305 |
| 22nd Budapest Spring Open | 2006 | 9 | 5 | 2,233 |
Interactive opening tree from all 478 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jon Arni Halldorsson's chess games?
478 games by Jon Arni Halldorsson, from Apr 2003 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 Jon Arni Halldorsson has played.
What does Jon Arni Halldorsson play on the first move as White?
Across 240 games with White in our database, Jon Arni Halldorsson opens with 1.d4 (99% of games), 1.Nf3 (1% of games). Against 1.e4 as Black, Jon Arni Halldorsson answers 1...e6 (99% of games), 1...c6 (1% of games). Against 1.d4: 1...d5 (88% of games), 1...f5 (7% of games), 1...e6 (3% of games).
What openings does Jon Arni Halldorsson play as White?
As White, Jon Arni Halldorsson's most-played openings in our database are: Indian Defense (38 games, 23.7% win rate); Slav Defense (33 games, 42.4% win rate); Catalan (27 games, 33.3% win rate). The full breakdown of 240 games with White is in the table above.
What openings does Jon Arni Halldorsson play as Black?
As Black, Jon Arni Halldorsson most often plays: Slav Defense (62 games, 25.8% win rate); French: Tarrasch Variation (17 games, 23.5% win rate); French: Advance Variation (16 games, 31.3% win rate). See the table above for the top ten Black openings across 238 games.
What is Jon Arni Halldorsson's FIDE rating?
Jon Arni Halldorsson is currently rated 2,072 in classical chess, 2,082 in rapid and 2,002 in blitz. Peak classical rating: 2,222 (Feb 2013).
How many games has Jon Arni Halldorsson played?
Our database contains 478 games by Jon Arni Halldorsson, covering Apr 2003 to Aug 2026. Overall record: 153 wins, 155 draws, 170 losses (32.0% win rate).
How do I prepare against Jon Arni Halldorsson?
478 games by Jon Arni Halldorsson 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.