Prepare against Steen Juul Mortensen
DNK · World #47,421 classical · FIDE ID 1408143
When preparing against Steen Juul Mortensen, expect 1.d4 in 85% of White games. Against 1.e4 the reply is 1...e5 (93% of games); against 1.d4, 1...Nf6 (100%). Lowest win rate among frequent openings: Catalan as White, 30.8% over 26 games.
Our database contains 166 games by Steen Juul Mortensen, covering Jan 2004 to Aug 2026. Below you'll find Steen Juul Mortensen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Steen Juul Mortensen 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 | 1,903 | 2,094 | Oct 2005 |
| Rapid | 1,946 | 1,978 | Jun 2025 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 166 | 34 | 78 | 54 | 20.5% |
| As White | 85 | 24 | 38 | 23 | 28.2% |
| As Black | 81 | 10 | 40 | 31 | 12.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Steen Juul Mortensen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Steen Juul Mortensen's side.
First moves as White (85 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 72 | 84.7% | 48.6% |
| e4 | 9 | 10.6% | 55.6% |
| Nf3 | 4 | 4.7% | 75.0% |
Main lines as White
- 1.d4 — 85% of White games, 48.6% score
- …Nf6 (44% of these games) — Mortensen usually continues c4 (38.1% score)
- …d5 (36% of these games) — Mortensen usually continues Nf3 (50.0% score)
- …e6 (8% of these games) — Mortensen usually continues c4 (60.0% score)
- 1.e4 — 11% of White games, 55.6% score
- …g6 (22% of these games) — Mortensen usually continues d4 (50.0% score)
- …c5 (22% of these games) — Mortensen usually continues Nf3 (100.0% score)
- …e5 (22% of these games) — Mortensen usually continues Nf3 (25.0% score)
As Black against 1.e4 (42 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 39 | 92.9% | 41.0% |
| c5 | 3 | 7.1% | 0.0% |
As Black against 1.d4 (19 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 19 | 100.0% | 28.9% |
Steen Juul Mortensen's chess games
All 166 games by Steen Juul Mortensen in the Chess.ceo database (Jan 2004 - 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: 34 wins, 78 draws, 54 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E11 | Catalan | 26 | 8/11/7 | 30.8% |
| D17 | Slav Defense | 12 | 3/5/4 | 25.0% |
| D94 | Grünfeld Defense | 6 | 0/5/1 | 0.0% |
| A56 | Benoni Defense | 6 | 1/3/2 | 16.7% |
| E94 | King's Indian Defense: Orthodox Variation | 6 | 0/4/2 | 0.0% |
| D07 | Queen's Pawn Game | 4 | 3/1/0 | 75.0% |
| E01 | Semi-Slav Defense | 3 | 1/2/0 | 33.3% |
| C49 | Four Knights Game: Spanish Variation | 2 | 0/1/1 | 0.0% |
| A84 | Queen's Gambit Declined | 2 | 1/0/1 | 50.0% |
| A35 | Indian Defense | 2 | 2/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C92 | Ruy Lopez: Closed | 7 | 1/3/3 | 14.3% |
| C84 | Ruy Lopez: Morphy Defense | 7 | 0/3/4 | 0.0% |
| C27 | Vienna Game | 5 | 2/3/0 | 40.0% |
| C45 | Scotch Game | 5 | 0/4/1 | 0.0% |
| A36 | English Opening: Symmetrical | 5 | 1/2/2 | 20.0% |
| A30 | English Opening | 4 | 0/3/1 | 0.0% |
| E61 | Indian Defense | 4 | 0/2/2 | 0.0% |
| E92 | King's Indian Defense: Orthodox Variation | 4 | 0/3/1 | 0.0% |
| E62 | King's Indian Defense | 3 | 0/2/1 | 0.0% |
| E73 | King's Indian Defense: Averbakh System | 3 | 1/0/2 | 33.3% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 1991 | Peter Jakobsen | 2,330 | chT-DEN 9192 | C41 |
| Jan 1988 | Soren Moller Riis | 2,300 | chB-DEN | B51 |
| Jan 1988 | Peter Heine Nielsen | 2,260 | chB-DEN | C41 |
| Aug 2012 | Leo Teemae | 2,047 | 12th ch-EU Seniors | E11 |
| Jul 2014 | Julian Farrand | 2,026 | WchT Seniors 65 | A80 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-DEN Seniors 65 | 2022 | 20 | 10.5 | 1,897 |
| WchT Seniors 65 | 2017 | 14 | 6 | 1,988 |
| ch-DEN Seniors 65+ | 2021 | 14 | 8 | 1,913 |
| chT-EU Seniors 65 | 2023 | 14 | 3.5 | 1,813 |
| Laurits Rasmussen Memorial | 1973 | 14 | 4.5 | – |
| 26th Wch Seniors 65 | 2016 | 11 | 4.5 | 1,689 |
| 23rd Wch Seniors | 2013 | 11 | 4.5 | 1,799 |
| chT-EUR Seniors 65 | 2021 | 11 | 4.5 | 1,848 |
Interactive opening tree from all 166 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Steen Juul Mortensen's chess games?
166 games by Steen Juul Mortensen, from Jan 2004 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 Steen Juul Mortensen has played.
What does Steen Juul Mortensen play on the first move as White?
Across 85 games with White in our database, Steen Juul Mortensen opens with 1.d4 (85% of games), 1.e4 (11% of games), 1.Nf3 (5% of games). Against 1.e4 as Black, Steen Juul Mortensen answers 1...e5 (93% of games), 1...c5 (7% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Steen Juul Mortensen play as White?
As White, Steen Juul Mortensen's most-played openings in our database are: Catalan (26 games, 30.8% win rate); Slav Defense (12 games, 25.0% win rate); Grünfeld Defense (6 games, 0.0% win rate). The full breakdown of 85 games with White is in the table above.
What openings does Steen Juul Mortensen play as Black?
As Black, Steen Juul Mortensen most often plays: Ruy Lopez: Closed (7 games, 14.3% win rate); Ruy Lopez: Morphy Defense (7 games, 0.0% win rate); Vienna Game (5 games, 40.0% win rate). See the table above for the top ten Black openings across 81 games.
What is Steen Juul Mortensen's FIDE rating?
Steen Juul Mortensen is currently rated 1,903 in classical chess, 1,946 in rapid. Peak classical rating: 2,094 (Oct 2005).
How many games has Steen Juul Mortensen played?
Our database contains 166 games by Steen Juul Mortensen, covering Jan 2004 to Aug 2026. Overall record: 34 wins, 78 draws, 54 losses (20.5% win rate).
How do I prepare against Steen Juul Mortensen?
166 games by Steen Juul Mortensen 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.