Prepare against Per Ertbjerg
DNK · World #44,036 classical · FIDE ID 1412167
Our database contains 334 games by Per Ertbjerg, covering Jul 2005 to Aug 2026. Below you'll find Per Ertbjerg's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Per Ertbjerg 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 | 1,917 | 2,074 | Sep 2012 |
| Rapid | 1,922 | 2,001 | Feb 2020 |
| Blitz | 1,965 | 1,969 | Mar 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 334 | 125 | 78 | 131 | 37.4% |
| As White | 172 | 69 | 39 | 64 | 40.1% |
| As Black | 162 | 56 | 39 | 67 | 34.6% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Per Ertbjerg's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Per Ertbjerg's side.
First moves as White (172 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 158 | 91.9% | 51.3% |
| Nf3 | 9 | 5.2% | 61.1% |
| c4 | 5 | 2.9% | 40.0% |
Main lines as White
- 1.d4 — 92% of White games, 51.3% score
- …Nf6 (49% of these games) — Ertbjerg usually continues c4 (49.3% score)
- …d5 (31% of these games) — Ertbjerg usually continues c4 (57.0% score)
- …e6 (8% of these games) — Ertbjerg usually continues c4 (40.0% score)
- 1.Nf3 — 5% of White games, 61.1% score
- …d5 (67% of these games) — Ertbjerg usually continues d4 (66.7% score)
- …g6 (11% of these games) — Ertbjerg usually continues d4 (0.0% score)
- …Nf6 (11% of these games) — Ertbjerg usually continues c4 (100.0% score)
As Black against 1.e4 (83 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 78 | 94.0% | 45.5% |
| e6 | 5 | 6.0% | 20.0% |
As Black against 1.d4 (54 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 48 | 88.9% | 45.8% |
| d5 | 5 | 9.3% | 70.0% |
| e6 | 1 | 1.9% | 0.0% |
Per Ertbjerg's chess games
All 334 games by Per Ertbjerg in the Chess.ceo database (Jul 2005 - 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: 125 wins, 78 draws, 131 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D10 | Slav Defense | 29 | 15/5/9 | 51.7% |
| D37 | Indian Defense | 18 | 7/6/5 | 38.9% |
| A57 | Benoni Defense | 18 | 5/3/10 | 27.8% |
| E70 | King's Indian Defense | 16 | 8/2/6 | 50.0% |
| A80 | Dutch Defense | 9 | 1/3/5 | 11.1% |
| D87 | Grünfeld Defense | 9 | 3/1/5 | 33.3% |
| E13 | Queen's Indian Defense | 8 | 3/2/3 | 37.5% |
| A41 | Queen's Pawn Game | 8 | 3/3/2 | 37.5% |
| E32 | Nimzo-Indian: Classical Variation | 5 | 2/1/2 | 40.0% |
| D53 | Semi-Slav Defense | 5 | 1/2/2 | 20.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B56 | Sicilian | 29 | 9/11/9 | 31.0% |
| D97 | Grünfeld Defense | 28 | 12/4/12 | 42.9% |
| B22 | Sicilian: Alapin | 12 | 3/2/7 | 25.0% |
| B23 | Sicilian: Closed | 11 | 4/3/4 | 36.4% |
| B30 | Sicilian: Rossolimo | 9 | 4/1/4 | 44.4% |
| A33 | English Opening | 7 | 3/0/4 | 42.9% |
| A08 | Réti Opening | 6 | 2/4/0 | 33.3% |
| A51 | Budapest Defense | 6 | 1/1/4 | 16.7% |
| B33 | Sicilian: Sveshnikov | 6 | 2/0/4 | 33.3% |
| B21 | Sicilian: Smith-Morra Gambit | 5 | 1/1/3 | 20.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Oct 2018 | Joose Norri | 2,267 | Helsinki LauttSSK Open | D87 |
| Oct 2017 | Hisham Al Argha | 2,263 | Helsinki We Garde | A72 |
| Feb 2015 | Vesa Heinola | 2,220 | 50th Helsinki Timo Munukan A | E70 |
| Apr 2010 | Jacob Kaaber-Hansen | 2,220 | Taastrup Spil Naar Du Vil V | D43 |
| May 2014 | Harri Laakso | 2,191 | FIN Team Cup | D94 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 9th Helsinki We Garde Group A | 2013 | 15 | 5.5 | 1,911 |
| Helsinki MatSK Open | 2020 | 14 | 6 | 1,941 |
| Helsinki We LauttSK | 2015 | 10 | 5.5 | 2,043 |
| Helsinki Garde Spring Weekend A | 2016 | 10 | 2.5 | 1,873 |
| ch-Valby K41 Aabent 1011 | 2011 | 9 | 6.5 | 2,122 |
| Helsinki We KapSK A | 2014 | 8 | 3.5 | 1,941 |
| Hameenlinna We HamSK | 2019 | 8 | 5 | 2,167 |
| Helsinki HSL Easter Open | 2019 | 6 | 3 | 1,718 |
Interactive opening tree from all 334 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Per Ertbjerg's chess games?
334 games by Per Ertbjerg, from Jul 2005 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 Per Ertbjerg has played.
What does Per Ertbjerg play on the first move as White?
Across 172 games with White in our database, Per Ertbjerg opens with 1.d4 (92% of games), 1.Nf3 (5% of games), 1.c4 (3% of games). Against 1.e4 as Black, Per Ertbjerg answers 1...c5 (94% of games), 1...e6 (6% of games). Against 1.d4: 1...Nf6 (89% of games), 1...d5 (9% of games), 1...e6 (2% of games).
What openings does Per Ertbjerg play as White?
As White, Per Ertbjerg's most-played openings in our database are: Slav Defense (29 games, 51.7% win rate); Indian Defense (18 games, 38.9% win rate); Benoni Defense (18 games, 27.8% win rate). The full breakdown of 172 games with White is in the table above.
What openings does Per Ertbjerg play as Black?
As Black, Per Ertbjerg most often plays: Sicilian (29 games, 31.0% win rate); Grünfeld Defense (28 games, 42.9% win rate); Sicilian: Alapin (12 games, 25.0% win rate). See the table above for the top ten Black openings across 162 games.
What is Per Ertbjerg's FIDE rating?
Per Ertbjerg is currently rated 1,917 in classical chess, 1,922 in rapid and 1,965 in blitz. Peak classical rating: 2,074 (Sep 2012).
How many games has Per Ertbjerg played?
Our database contains 334 games by Per Ertbjerg, covering Jul 2005 to Aug 2026. Overall record: 125 wins, 78 draws, 131 losses (37.4% win rate).
How do I prepare against Per Ertbjerg?
334 games by Per Ertbjerg 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.