Prepare against Kaj Olsen
FRO · World #106,782 classical · FIDE ID 7202490
When preparing against Kaj Olsen, expect 1.e4 in 100% of White games. Against 1.e4 the reply is 1...e5 (94% of games); against 1.d4, 1...Nf6 (67%).
Our database contains 86 games by Kaj Olsen, covering Mar 2015 to Jul 2026. Below you'll find Kaj Olsen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Kaj Olsen 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 | 1,710 | 1,755 | Mar 2024 |
| Rapid | 1,738 | 1,747 | Nov 2024 |
| Blitz | 1,735 | 1,735 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 86 | 25 | 20 | 41 | 29.1% |
| As White | 45 | 18 | 9 | 18 | 40.0% |
| As Black | 41 | 7 | 11 | 23 | 17.1% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Kaj Olsen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Kaj Olsen's side.
First moves as White (45 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 45 | 100.0% | 50.0% |
Main lines as White
- 1.e4 — 100% of White games, 50.0% score
- …e5 (42% of these games) — Olsen usually continues Nf3 (60.5% score)
- …c5 (31% of these games) — Olsen usually continues Nf3 (46.4% score)
- …e6 (11% of these games) — Olsen usually continues d4 (83.3% score)
As Black against 1.e4 (31 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 29 | 93.5% | 31.0% |
| d5 | 2 | 6.5% | 25.0% |
As Black against 1.d4 (6 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 4 | 66.7% | 25.0% |
| d5 | 2 | 33.3% | 50.0% |
Kaj Olsen's chess games
All 86 games by Kaj Olsen in the Chess.ceo database (Mar 2015 - 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, 20 draws, 41 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B72 | Sicilian: Dragon | 5 | 1/1/3 | 20.0% |
| B84 | Sicilian: Najdorf | 4 | 1/0/3 | 25.0% |
| C01 | French Defense | 3 | 2/1/0 | 66.7% |
| C64 | Ruy Lopez: Classical | 3 | 2/0/1 | 66.7% |
| C48 | Four Knights Game: Spanish Variation | 3 | 1/1/1 | 33.3% |
| C55 | Four Knights Game: Italian Variation | 2 | 1/0/1 | 50.0% |
| C78 | Ruy Lopez: Morphy Defense | 2 | 0/0/2 | 0.0% |
| C42 | Petrov's Defense | 2 | 2/0/0 | 100.0% |
| B07 | Pirc Defense | 2 | 0/0/2 | 0.0% |
| B33 | Sicilian | 2 | 2/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C42 | Petrov's Defense | 10 | 0/2/8 | 0.0% |
| C48 | Four Knights Game: Spanish Variation | 8 | 3/0/5 | 37.5% |
| C55 | Four Knights Game: Italian Variation | 3 | 1/1/1 | 33.3% |
| C41 | Bishop's Opening | 2 | 0/1/1 | 0.0% |
| A09 | English Opening | 2 | 0/0/2 | 0.0% |
| B02 | Four Knights Game | 1 | 0/1/0 | 0.0% |
| B14 | Caro-Kann: Exchange Variation | 1 | 0/0/1 | 0.0% |
| C47 | Four Knights Game: Scotch Variation | 1 | 0/0/1 | 0.0% |
| A52 | Budapest Defense | 1 | 0/0/1 | 0.0% |
| A03 | Bird's opening | 1 | 0/1/0 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Nov 2019 | Terji Petersen | 1,988 | chT-FAI 1920 | A58 |
| Oct 2020 | Herluf Hansen | 1,971 | chT-FAI 2021 | B45 |
| Jan 2017 | Eivind Jacobsen | 1,780 | chT-FAI 1617 | C55 |
| Feb 2021 | Jogvan Naes | 1,725 | chT-FAI 2021 | C42 |
| Nov 2020 | Henrik W. Joensen | 1,650 | chT-FAI 2021 | B33 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Runavik Open | 2018 | 18 | 6.5 | 1,636 |
| chT-FAI 2021 | 2021 | 9 | 4 | 1,783 |
| 37th Politiken Cup | 2015 | 9 | 3 | 1,592 |
| Faroes Open | 2018 | 8 | 3.5 | 1,805 |
| Oyri Rokur Open | 2016 | 8 | 4 | 1,548 |
| chT-FAI 1920 | 2020 | 8 | 3 | 1,725 |
| ch-Nordic U17 | 2017 | 6 | 0 | 1,574 |
| chT-FAI 1617 | 2017 | 6 | 2.5 | 1,607 |
Interactive opening tree from all 86 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Kaj Olsen's chess games?
86 games by Kaj Olsen, from Mar 2015 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 Kaj Olsen has played.
What does Kaj Olsen play on the first move as White?
Across 45 games with White in our database, Kaj Olsen opens with 1.e4 (100% of games). Against 1.e4 as Black, Kaj Olsen answers 1...e5 (94% of games), 1...d5 (6% of games). Against 1.d4: 1...Nf6 (67% of games), 1...d5 (33% of games).
What openings does Kaj Olsen play as White?
As White, Kaj Olsen's most-played openings in our database are: Sicilian: Dragon (5 games, 20.0% win rate); Sicilian: Najdorf (4 games, 25.0% win rate); French Defense (3 games, 66.7% win rate). The full breakdown of 45 games with White is in the table above.
What openings does Kaj Olsen play as Black?
As Black, Kaj Olsen most often plays: Petrov's Defense (10 games, 0.0% win rate); Four Knights Game: Spanish Variation (8 games, 37.5% win rate); Four Knights Game: Italian Variation (3 games, 33.3% win rate). See the table above for the top ten Black openings across 41 games.
What is Kaj Olsen's FIDE rating?
Kaj Olsen is currently rated 1,710 in classical chess, 1,738 in rapid and 1,735 in blitz. Peak classical rating: 1,755 (Mar 2024).
How many games has Kaj Olsen played?
Our database contains 86 games by Kaj Olsen, covering Mar 2015 to Jul 2026. Overall record: 25 wins, 20 draws, 41 losses (29.1% win rate).
How do I prepare against Kaj Olsen?
86 games by Kaj Olsen 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.