Prepare against Constanze Jahn
WIM · DEU · World #24,704 classical · FIDE ID 4612450
When preparing against Constanze Jahn, expect 1.e4 in 98% of White games. Against 1.e4 the reply is 1...c5 (90% of games); against 1.d4, 1...Nf6 (66%). Lowest win rate among frequent openings: Sicilian: Closed as Black, 14.3% over 21 games.
Our database contains 892 games by Constanze Jahn, covering Apr 2003 to Jul 2026. Below you'll find Constanze Jahn's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Constanze Jahn 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 | 2,020 | 2,226 | Apr 2003 |
| Blitz | 2,073 | 2,073 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 892 | 291 | 353 | 248 | 32.6% |
| As White | 450 | 162 | 169 | 119 | 36.0% |
| As Black | 442 | 129 | 184 | 129 | 29.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Constanze Jahn's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Constanze Jahn's side.
First moves as White (450 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 440 | 97.8% | 55.0% |
| Nf3 | 6 | 1.3% | 33.3% |
| b3 | 2 | 0.4% | 75.0% |
| d4 | 2 | 0.4% | 50.0% |
Main lines as White
- 1.e4 — 98% of White games, 55.0% score
- …c5 (47% of these games) — Jahn usually continues c3 (52.7% score)
- …e5 (15% of these games) — Jahn usually continues Nf3 (52.8% score)
- …e6 (14% of these games) — Jahn usually continues d4 (54.7% score)
- 1.Nf3 — 1% of White games, 33.3% score
- …d5 (50% of these games) — Jahn usually continues d4 (0.0% score)
- …Nf6 (33% of these games) — Jahn usually continues g3 (50.0% score)
- …d6 (17% of these games) — Jahn usually continues e4 (50.0% score)
As Black against 1.e4 (207 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 186 | 89.9% | 48.9% |
| b6 | 9 | 4.3% | 33.3% |
| d6 | 3 | 1.4% | 66.7% |
| d5 | 3 | 1.4% | 50.0% |
| e6 | 2 | 1.0% | 50.0% |
| g6 | 1 | 0.5% | 0.0% |
As Black against 1.d4 (154 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 101 | 65.6% | 51.5% |
| d5 | 31 | 20.1% | 53.2% |
| e6 | 12 | 7.8% | 29.2% |
| b5 | 4 | 2.6% | 62.5% |
| f5 | 2 | 1.3% | 75.0% |
| e5 | 2 | 1.3% | 100.0% |
Constanze Jahn's chess games
All 892 games by Constanze Jahn in the Chess.ceo database (Apr 2003 - 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: 291 wins, 353 draws, 248 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B22 | Sicilian: Alapin | 113 | 39/41/33 | 34.5% |
| B22 | Sicilian | 64 | 25/20/19 | 39.1% |
| C00 | French Defense | 31 | 14/10/7 | 45.2% |
| C56 | Italian Game | 21 | 8/5/8 | 38.1% |
| B06 | Modern Defense | 17 | 7/9/1 | 41.2% |
| B07 | Pirc Defense | 17 | 5/7/5 | 29.4% |
| B10 | Caro-Kann | 17 | 4/8/5 | 23.5% |
| B23 | Sicilian: Closed | 16 | 6/6/4 | 37.5% |
| C01 | French: Exchange Variation | 15 | 6/4/5 | 40.0% |
| C44 | Ponziani Opening | 15 | 7/3/5 | 46.7% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B42 | Sicilian | 123 | 35/49/39 | 28.5% |
| A47 | Indian Defense | 27 | 6/12/9 | 22.2% |
| E12 | Queen's Indian Defense | 26 | 8/12/6 | 30.8% |
| D45 | Slav Defense | 22 | 8/10/4 | 36.4% |
| B23 | Sicilian: Closed | 21 | 3/11/7 | 14.3% |
| A17 | English Opening | 20 | 8/6/6 | 40.0% |
| B22 | Sicilian: Alapin | 16 | 5/7/4 | 31.3% |
| A07 | Réti Opening | 13 | 5/5/3 | 38.5% |
| B48 | Sicilian: Taimanov | 11 | 4/5/2 | 36.4% |
| E32 | Nimzo-Indian: Classical Variation | 10 | 3/5/2 | 30.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 1997 | Miron Naumovich Sher | 2,470 | 2nd Baden Casino Open | D37 |
| Sep 2000 | Almira Skripchenko | 2,450 | 5th EU-Cup w | B22 |
| Jan 1994 | Holger Nothnagel | 2,370 | Oberliga Ost Playoff | C01 |
| Jun 2001 | Burkhard Malich | 2,370 | 2nd Loeberitz Ehrenpreis | B30 |
| Feb 1995 | Jordanka Belic | 2,345 | BL 9495 w | B42 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-DDR w | 1990 | 89 | 49.5 | 2,112 |
| Graz zt w | 1993 | 22 | 16 | 2,327 |
| chT-GER Federal Cup w | 2009 | 21 | 10.5 | 2,093 |
| Dresden w | 1994 | 20 | 8 | 2,159 |
| ch-SUI w | 2001 | 18 | 11 | 2,182 |
| WchT Seniors 50 | 2024 | 14 | 7 | 1,988 |
| ch-SUI int w | 2000 | 14 | 9.5 | 2,275 |
| Halle w 15th | 1981 | 13 | 5 | 1,930 |
Frequent opponents
Head-to-head records: Annett Wagner-Michel (14 games) · Iris Mai (14 games) · Brigitte Burchardt (12 games) · Martina Beltz (12 games) · Gudula Seils (11 games)
Interactive opening tree from all 892 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Constanze Jahn's chess games?
892 games by Constanze Jahn, from Apr 2003 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 Constanze Jahn has played.
What does Constanze Jahn play on the first move as White?
Across 450 games with White in our database, Constanze Jahn opens with 1.e4 (98% of games), 1.Nf3 (1% of games), 1.b3 (0% of games). Against 1.e4 as Black, Constanze Jahn answers 1...c5 (90% of games), 1...b6 (4% of games), 1...d6 (1% of games). Against 1.d4: 1...Nf6 (66% of games), 1...d5 (20% of games), 1...e6 (8% of games).
What openings does Constanze Jahn play as White?
As White, Constanze Jahn's most-played openings in our database are: Sicilian: Alapin (113 games, 34.5% win rate); Sicilian (64 games, 39.1% win rate); French Defense (31 games, 45.2% win rate). The full breakdown of 450 games with White is in the table above.
What openings does Constanze Jahn play as Black?
As Black, Constanze Jahn most often plays: Sicilian (123 games, 28.5% win rate); Indian Defense (27 games, 22.2% win rate); Queen's Indian Defense (26 games, 30.8% win rate). See the table above for the top ten Black openings across 442 games.
What is Constanze Jahn's FIDE rating?
Constanze Jahn is currently rated 2,020 in classical chess and 2,073 in blitz. Peak classical rating: 2,226 (Apr 2003).
How many games has Constanze Jahn played?
Our database contains 892 games by Constanze Jahn, covering Apr 2003 to Jul 2026. Overall record: 291 wins, 353 draws, 248 losses (32.6% win rate).
How do I prepare against Constanze Jahn?
892 games by Constanze Jahn 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.