Prepare against Sveinbjorn Jonsson
Iceland · World #70,352 classical · FIDE ID 2303248
When preparing against Sveinbjorn Jonsson, expect 1.e4 in 63% of White games. Against 1.e4 the reply is 1...c5 (33% of games); against 1.d4, 1...Nf6 (55%).
Our database contains 60 games by Sveinbjorn Jonsson, covering Jul 2012 to Jul 2026. Below you'll find Sveinbjorn Jonsson's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Sveinbjorn Jonsson 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 | 1,820 | 1,828 | Nov 2025 |
| Rapid | 1,762 | 1,762 | Jul 2026 |
| Blitz | 1,659 | 1,689 | Nov 2024 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 60 | 25 | 15 | 20 | 41.7% |
| As White | 30 | 16 | 8 | 6 | 53.3% |
| As Black | 30 | 9 | 7 | 14 | 30.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Sveinbjorn Jonsson's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Sveinbjorn Jonsson's side.
First moves as White (30 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 19 | 63.3% | 73.7% |
| c4 | 6 | 20.0% | 41.7% |
| Nf3 | 2 | 6.7% | 75.0% |
| f4 | 2 | 6.7% | 50.0% |
| d4 | 1 | 3.3% | 100.0% |
Main lines as White
- 1.e4 — 63% of White games, 73.7% score
- …c5 (42% of these games) — Jonsson usually continues Nf3 (60.0% score)
- …e5 (37% of these games) — Jonsson usually continues Nf3 (92.9% score)
- …d6 (11% of these games) — Jonsson usually continues d4 (75.0% score)
- 1.c4 — 20% of White games, 41.7% score
- …e5 (50% of these games) — Jonsson usually continues Nc3 (50.0% score)
- …f5 (17% of these games) — Jonsson usually continues Nc3 (0.0% score)
- …c5 (17% of these games) — Jonsson usually continues Nc3 (100.0% score)
As Black against 1.e4 (12 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 4 | 33.3% | 37.5% |
| d6 | 3 | 25.0% | 16.7% |
| Nf6 | 2 | 16.7% | 50.0% |
| g6 | 1 | 8.3% | 0.0% |
| e5 | 1 | 8.3% | 50.0% |
| e6 | 1 | 8.3% | 50.0% |
As Black against 1.d4 (11 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 6 | 54.5% | 75.0% |
| d5 | 3 | 27.3% | 33.3% |
| g6 | 1 | 9.1% | 100.0% |
| c5 | 1 | 9.1% | 100.0% |
Sveinbjorn Jonsson's chess games
All 60 games by Sveinbjorn Jonsson in the Chess.ceo database (Jul 2012 - 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: 25 wins, 15 draws, 20 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C84 | Ruy Lopez: Morphy Defense | 4 | 4/0/0 | 100.0% |
| B25 | Sicilian: Closed | 3 | 1/1/1 | 33.3% |
| A22 | English Opening: Reverse Sicilian | 3 | 1/1/1 | 33.3% |
| A17 | English Opening | 2 | 1/0/1 | 50.0% |
| B48 | Sicilian: Taimanov | 2 | 1/1/0 | 50.0% |
| A02 | Bird's opening | 2 | 1/0/1 | 50.0% |
| C44 | King's Pawn Game: Tayler Opening | 1 | 1/0/0 | 100.0% |
| C41 | Philidor | 1 | 0/1/0 | 0.0% |
| B09 | Pirc Defense | 1 | 0/1/0 | 0.0% |
| C44 | Ponziani Opening | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B07 | Pirc Defense | 3 | 0/1/2 | 0.0% |
| A31 | English Opening | 3 | 0/0/3 | 0.0% |
| B22 | Sicilian | 3 | 0/2/1 | 0.0% |
| A42 | Modern Defense | 2 | 1/0/1 | 50.0% |
| D02 | London System | 2 | 1/0/1 | 50.0% |
| A57 | Indian Defense | 2 | 2/0/0 | 100.0% |
| A44 | Benoni Defense | 2 | 2/0/0 | 100.0% |
| C50 | Italian Game | 1 | 1/0/0 | 100.0% |
| E61 | King's Indian Defense | 1 | 0/1/0 | 0.0% |
| A01 | Nimzovich-Larsen attack | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Mar 2003 | Gunnar Runarsson | 2,153 | Reykjavik Edda Rapid | D00 |
| Mar 2018 | Johann Ebner | 2,070 | Reykjavik Open | A42 |
| Mar 2018 | Gerald Larson | 2,065 | Reykjavik Open | B48 |
| Jan 2001 | Bertil Westin | 1,982 | SWE AM2001 | A59 |
| Nov 2019 | Haraldur Baldursson | 1,929 | Reykjavik Taflfelag Open | D41 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| SWE AM2001 | 2001 | 13 | 9.5 | 1,878 |
| Reykjavik Open | 2018 | 9 | 4 | 1,837 |
| ch-Reykjavik | 2012 | 9 | 5 | 1,788 |
| Reykjavik Congress | 2018 | 8 | 3.5 | 1,833 |
| Reykjavik Taflfelag Open | 2019 | 7 | 4 | 1,762 |
| chT-ISL 1921 | 2019 | 4 | 2 | 1,894 |
| Reykjavik City-ch | 2000 | 4 | 2 | – |
| Reykjavik Edda Rapid | 2003 | 2 | 1.5 | 2,343 |
Interactive opening tree from all 60 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Sveinbjorn Jonsson's chess games?
60 games by Sveinbjorn Jonsson, from Jul 2012 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 Sveinbjorn Jonsson has played.
What does Sveinbjorn Jonsson play on the first move as White?
Across 30 games with White in our database, Sveinbjorn Jonsson opens with 1.e4 (63% of games), 1.c4 (20% of games), 1.Nf3 (7% of games). Against 1.e4 as Black, Sveinbjorn Jonsson answers 1...c5 (33% of games), 1...d6 (25% of games), 1...Nf6 (17% of games). Against 1.d4: 1...Nf6 (55% of games), 1...d5 (27% of games), 1...g6 (9% of games).
What openings does Sveinbjorn Jonsson play as White?
As White, Sveinbjorn Jonsson's most-played openings in our database are: Ruy Lopez: Morphy Defense (4 games, 100.0% win rate); Sicilian: Closed (3 games, 33.3% win rate); English Opening: Reverse Sicilian (3 games, 33.3% win rate). The full breakdown of 30 games with White is in the table above.
What openings does Sveinbjorn Jonsson play as Black?
As Black, Sveinbjorn Jonsson most often plays: Pirc Defense (3 games, 0.0% win rate); English Opening (3 games, 0.0% win rate); Sicilian (3 games, 0.0% win rate). See the table above for the top ten Black openings across 30 games.
What is Sveinbjorn Jonsson's FIDE rating?
Sveinbjorn Jonsson is currently rated 1,820 in classical chess, 1,762 in rapid and 1,659 in blitz. Peak classical rating: 1,828 (Nov 2025).
How many games has Sveinbjorn Jonsson played?
Our database contains 60 games by Sveinbjorn Jonsson, covering Jul 2012 to Jul 2026. Overall record: 25 wins, 15 draws, 20 losses (41.7% win rate).
How do I prepare against Sveinbjorn Jonsson?
60 games by Sveinbjorn Jonsson 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.