Prepare against Jan Ens
NLD · World #79,698 classical · FIDE ID 40103480
When preparing against Jan Ens, expect 1.e4 in 100% of White games. Against 1.e4 the reply is 1...c5 (83% of games); against 1.d4, 1...Nf6 (100%).
Our database contains 33 games by Jan Ens, covering Apr 2024 to Jul 2026. Below you'll find Jan Ens's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jan Ens 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 | 1,791 | 1,807 | Apr 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 33 | 12 | 11 | 10 | 36.4% |
| As White | 20 | 7 | 8 | 5 | 35.0% |
| As Black | 13 | 5 | 3 | 5 | 38.5% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jan Ens's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jan Ens's side.
First moves as White (20 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 20 | 100.0% | 55.0% |
Main lines as White
- 1.e4 — 100% of White games, 55.0% score
- …e5 (25% of these games) — Ens usually continues Nf3 (50.0% score)
- …e6 (25% of these games) — Ens usually continues d4 (50.0% score)
- …c6 (20% of these games) — Ens usually continues d4 (62.5% score)
As Black against 1.e4 (6 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 5 | 83.3% | 60.0% |
| e6 | 1 | 16.7% | 0.0% |
As Black against 1.d4 (5 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 5 | 100.0% | 50.0% |
Jan Ens's chess games
All 33 games by Jan Ens in the Chess.ceo database (Apr 2024 - 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: 12 wins, 11 draws, 10 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B12 | Caro-Kann: Advance Variation | 4 | 1/3/0 | 25.0% |
| B03 | Alekhine Defense | 2 | 0/2/0 | 0.0% |
| B44 | French Defense | 2 | 1/1/0 | 50.0% |
| C54 | Italian Game | 2 | 1/0/1 | 50.0% |
| B34 | Sicilian | 2 | 1/1/0 | 50.0% |
| C01 | French: Exchange Variation | 1 | 0/0/1 | 0.0% |
| B34 | Sicilian: Accelerated Dragon | 1 | 0/0/1 | 0.0% |
| C00 | King's Indian Attack | 1 | 1/0/0 | 100.0% |
| B06 | Modern Defense | 1 | 0/0/1 | 0.0% |
| C92 | Ruy Lopez: Closed | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B22 | Sicilian | 3 | 1/1/1 | 33.3% |
| D53 | Indian Defense | 2 | 1/1/0 | 50.0% |
| A13 | English Opening | 1 | 1/0/0 | 100.0% |
| C18 | French: Winawer Variation | 1 | 0/0/1 | 0.0% |
| E76 | King's Indian Defense: Four Pawns Attack | 1 | 1/0/0 | 100.0% |
| B24 | Sicilian: Closed | 1 | 0/1/0 | 0.0% |
| B98 | Sicilian: Najdorf | 1 | 1/0/0 | 100.0% |
| A03 | Bird's opening | 1 | 0/0/1 | 0.0% |
| A45 | Trompowsky Attack | 1 | 0/0/1 | 0.0% |
| D00 | Blackmar-Diemer Gambit | 1 | 0/0/1 | 0.0% |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Alkmaar ACCOM Open | 1992 | 18 | 10 | – |
| Haarlem ACCOM Open 2 | 1990 | 10 | 5.5 | – |
| Alkmaar Open A | 1982 | 5 | 2 | – |
Interactive opening tree from all 33 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jan Ens's chess games?
33 games by Jan Ens, from Apr 2024 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 Jan Ens has played.
What does Jan Ens play on the first move as White?
Across 20 games with White in our database, Jan Ens opens with 1.e4 (100% of games). Against 1.e4 as Black, Jan Ens answers 1...c5 (83% of games), 1...e6 (17% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Jan Ens play as White?
As White, Jan Ens's most-played openings in our database are: Caro-Kann: Advance Variation (4 games, 25.0% win rate); Alekhine Defense (2 games, 0.0% win rate); French Defense (2 games, 50.0% win rate). The full breakdown of 20 games with White is in the table above.
What openings does Jan Ens play as Black?
As Black, Jan Ens most often plays: Sicilian (3 games, 33.3% win rate); Indian Defense (2 games, 50.0% win rate); English Opening (1 games, 100.0% win rate). See the table above for the top ten Black openings across 13 games.
What is Jan Ens's FIDE rating?
Jan Ens is currently rated 1,791 in classical chess. Peak classical rating: 1,807 (Apr 2026).
How many games has Jan Ens played?
Our database contains 33 games by Jan Ens, covering Apr 2024 to Jul 2026. Overall record: 12 wins, 11 draws, 10 losses (36.4% win rate).
How do I prepare against Jan Ens?
33 games by Jan Ens 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.