Prepare against Baldur Teodor Petersson
CM · Sweden · World #10,229 classical · FIDE ID 2309157
When preparing against Baldur Teodor Petersson, expect 1.e4 in 95% of White games. Against 1.e4 the reply is 1...c5 (83% of games); against 1.d4, 1...Nf6 (68%). Lowest win rate among frequent openings: Slav Defense as Black, 11.8% over 17 games.
Our database contains 382 games by Baldur Teodor Petersson, covering Nov 2011 to Jul 2026. Below you'll find Baldur Teodor Petersson's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Baldur Teodor Petersson 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 | 2,166 | 2,255 | Aug 2019 |
| Rapid | 2,130 | 2,130 | Jul 2026 |
| Blitz | 2,118 | 2,130 | Nov 2025 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 382 | 116 | 103 | 163 | 30.4% |
| As White | 190 | 70 | 53 | 67 | 36.8% |
| As Black | 192 | 46 | 50 | 96 | 24.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Baldur Teodor Petersson's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Baldur Teodor Petersson's side.
First moves as White (190 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 180 | 94.7% | 51.4% |
| Nf3 | 8 | 4.2% | 43.8% |
| c4 | 1 | 0.5% | 0.0% |
| d4 | 1 | 0.5% | 50.0% |
Main lines as White
- 1.e4 — 95% of White games, 51.4% score
- …c5 (44% of these games) — Petersson usually continues Nc3 (55.6% score)
- …e6 (19% of these games) — Petersson usually continues d3 (70.0% score)
- …e5 (15% of these games) — Petersson usually continues Nf3 (48.1% score)
- 1.Nf3 — 4% of White games, 43.8% score
- …Nf6 (50% of these games) — Petersson usually continues g3 (50.0% score)
- …c5 (38% of these games) — Petersson usually continues g3 (50.0% score)
- …d5 (13% of these games) — Petersson usually continues g3 (0.0% score)
As Black against 1.e4 (80 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 66 | 82.5% | 37.9% |
| e6 | 10 | 12.5% | 40.0% |
| e5 | 4 | 5.0% | 0.0% |
As Black against 1.d4 (65 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 44 | 67.7% | 40.9% |
| d5 | 21 | 32.3% | 31.0% |
Baldur Teodor Petersson's chess games
All 382 games by Baldur Teodor Petersson in the Chess.ceo database (Nov 2011 - 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: 116 wins, 103 draws, 163 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B25 | Sicilian: Closed | 36 | 14/12/10 | 38.9% |
| A04 | Sicilian | 31 | 10/9/12 | 32.3% |
| C00 | King's Indian Attack | 17 | 9/5/3 | 52.9% |
| C00 | French Defense | 12 | 5/2/5 | 41.7% |
| C56 | Italian Game | 10 | 1/4/5 | 10.0% |
| C54 | Italian Game: Classical Variation | 9 | 5/2/2 | 55.6% |
| B25 | Pirc Defense | 8 | 4/2/2 | 50.0% |
| B12 | Caro-Kann: Advance Variation | 6 | 3/0/3 | 50.0% |
| C01 | French: Exchange Variation | 6 | 2/1/3 | 33.3% |
| B06 | Modern Defense | 6 | 1/2/3 | 16.7% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B43 | Sicilian | 51 | 16/7/28 | 31.4% |
| D10 | Slav Defense | 17 | 2/6/9 | 11.8% |
| B08 | King's Indian Defense | 11 | 2/4/5 | 18.2% |
| E94 | King's Indian Defense: Orthodox Variation | 10 | 0/2/8 | 0.0% |
| A05 | English Opening | 10 | 1/5/4 | 10.0% |
| B23 | Sicilian: Closed | 9 | 1/2/6 | 11.1% |
| A48 | London System | 7 | 5/2/0 | 71.4% |
| A48 | Indian Defense | 7 | 2/3/2 | 28.6% |
| C16 | French: Winawer Variation | 6 | 1/3/2 | 16.7% |
| A06 | Réti Opening | 6 | 3/1/2 | 50.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| May 2017 | Bengt Lindberg | 2,387 | Gothenburg Kvibergspelen | B25 |
| Mar 2018 | Marina Brunello | 2,367 | Reykjavik Open | A05 |
| Jul 2019 | Milton Pantzar | 2,357 | ch-SWE U20 | E71 |
| Jul 2019 | Hampus Sorensen | 2,352 | ch-SWE U20 | C54 |
| Aug 2016 | Johan Hultin | 2,340 | Gothenburg Open | C00 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Reykjavik Open | 2018 | 47 | 19 | 1,885 |
| Gothenburg Open | 2019 | 22 | 13.5 | 2,257 |
| Helsingor Xtracon Open | 2018 | 20 | 11.5 | 2,136 |
| ch-SWE U20 | 2021 | 18 | 9.5 | 2,249 |
| Deltalift Open | 2019 | 18 | 7.5 | 2,075 |
| Gothenburg Kvibergspelen | 2019 | 11 | 3.5 | 2,129 |
| chT1-ISL 2122 | 2022 | 10 | 6 | 2,304 |
| ch-ISL Open | 2013 | 10 | 6 | 1,997 |
Interactive opening tree from all 382 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Baldur Teodor Petersson's chess games?
382 games by Baldur Teodor Petersson, from Nov 2011 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 Baldur Teodor Petersson has played.
What does Baldur Teodor Petersson play on the first move as White?
Across 190 games with White in our database, Baldur Teodor Petersson opens with 1.e4 (95% of games), 1.Nf3 (4% of games), 1.c4 (1% of games). Against 1.e4 as Black, Baldur Teodor Petersson answers 1...c5 (83% of games), 1...e6 (13% of games), 1...e5 (5% of games). Against 1.d4: 1...Nf6 (68% of games), 1...d5 (32% of games).
What openings does Baldur Teodor Petersson play as White?
As White, Baldur Teodor Petersson's most-played openings in our database are: Sicilian: Closed (36 games, 38.9% win rate); Sicilian (31 games, 32.3% win rate); King's Indian Attack (17 games, 52.9% win rate). The full breakdown of 190 games with White is in the table above.
What openings does Baldur Teodor Petersson play as Black?
As Black, Baldur Teodor Petersson most often plays: Sicilian (51 games, 31.4% win rate); Slav Defense (17 games, 11.8% win rate); King's Indian Defense (11 games, 18.2% win rate). See the table above for the top ten Black openings across 192 games.
What is Baldur Teodor Petersson's FIDE rating?
Baldur Teodor Petersson is currently rated 2,166 in classical chess, 2,130 in rapid and 2,118 in blitz. Peak classical rating: 2,255 (Aug 2019).
How many games has Baldur Teodor Petersson played?
Our database contains 382 games by Baldur Teodor Petersson, covering Nov 2011 to Jul 2026. Overall record: 116 wins, 103 draws, 163 losses (30.4% win rate).
How do I prepare against Baldur Teodor Petersson?
382 games by Baldur Teodor Petersson 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.