Prepare against Jiri Zemen
Czechia · World #76,794 classical · FIDE ID 23753340
When preparing against Jiri Zemen, expect 1.e4 in 100% of White games. Against 1.e4 the reply is 1...e5 (82% of games); against 1.d4, 1...d5 (100%).
Our database contains 68 games by Jiri Zemen, covering Sep 2022 to Jul 2026. Below you'll find Jiri Zemen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jiri Zemen 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 | 1,800 | 1,873 | Nov 2022 |
| Rapid | 1,827 | 1,876 | Sep 2024 |
| Blitz | 1,748 | 1,861 | Sep 2024 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 68 | 19 | 21 | 28 | 27.9% |
| As White | 32 | 7 | 12 | 13 | 21.9% |
| As Black | 36 | 12 | 9 | 15 | 33.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jiri Zemen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jiri Zemen's side.
First moves as White (32 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 32 | 100.0% | 40.6% |
Main lines as White
- 1.e4 — 100% of White games, 40.6% score
- …e5 (38% of these games) — Zemen usually continues Nf3 (36.4% score)
- …c5 (22% of these games) — Zemen usually continues Nf3 (35.7% score)
- …c6 (13% of these games) — Zemen usually continues Nc3 (50.0% score)
As Black against 1.e4 (28 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 23 | 82.1% | 43.5% |
| d5 | 5 | 17.9% | 60.0% |
As Black against 1.d4 (5 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 5 | 100.0% | 50.0% |
Jiri Zemen's chess games
All 68 games by Jiri Zemen in the Chess.ceo database (Sep 2022 - 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: 19 wins, 21 draws, 28 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C47 | Four Knights Game: Scotch Variation | 8 | 2/3/3 | 25.0% |
| C01 | French: Exchange Variation | 4 | 0/3/1 | 0.0% |
| B11 | Caro-Kann: Two Knights Variation | 3 | 1/1/1 | 33.3% |
| B06 | Pirc Defense | 2 | 1/0/1 | 50.0% |
| C54 | Italian Game: Classical Variation | 2 | 0/0/2 | 0.0% |
| B72 | Sicilian: Dragon | 2 | 1/1/0 | 50.0% |
| B28 | Sicilian | 2 | 0/0/2 | 0.0% |
| B34 | Sicilian: Accelerated Dragon | 2 | 0/1/1 | 0.0% |
| C46 | Three Knights Opening | 1 | 0/1/0 | 0.0% |
| B13 | Caro-Kann | 1 | 0/1/0 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C54 | Italian Game: Classical Variation | 5 | 2/2/1 | 40.0% |
| B01 | Scandinavian Defense: Modern Variation | 4 | 2/0/2 | 50.0% |
| C55 | Four Knights Game: Italian Variation | 3 | 1/2/0 | 33.3% |
| C45 | Scotch Game | 3 | 1/0/2 | 33.3% |
| C30 | King's Gambit | 3 | 0/2/1 | 0.0% |
| D32 | Queen's Gambit Declined | 3 | 1/2/0 | 33.3% |
| C47 | Four Knights Game | 1 | 0/0/1 | 0.0% |
| C22 | Center Game | 1 | 1/0/0 | 100.0% |
| C50 | Italian Game | 1 | 1/0/0 | 100.0% |
| A25 | English Opening: Reverse Sicilian | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 1999 | Jan Kovar | 2,160 | Plzen Open B U18 | D40 |
| Sep 2024 | Michal Macho | 1,622 | 23rd Plzen Calliditas Open | B06 |
| Aug 2023 | Vaclav Koutecky | 1,307 | Plzen Calliditas Open | D00 |
| Aug 2023 | Tomas Zelenka | 1,280 | Plzen Calliditas Open | B13 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-Czech Fed U12 | 1997 | 9 | 1.5 | – |
| ch-CZE Ma U14 | 1998 | 9 | 4.5 | – |
| Klatovy Open B | 1998 | 9 | 2.5 | 1,895 |
| ch-CZE U14 | 1999 | 9 | 5 | 1,681 |
| Frymburk Open B | 2000 | 9 | 6 | – |
| Plzen Open B U18 | 1999 | 9 | 4.5 | 2,160 |
| Plzen Calliditas Open | 2023 | 9 | 4 | 1,649 |
| 23rd Plzen Calliditas Open | 2024 | 4 | 1.5 | 1,635 |
Interactive opening tree from all 68 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jiri Zemen's chess games?
68 games by Jiri Zemen, from Sep 2022 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 Jiri Zemen has played.
What does Jiri Zemen play on the first move as White?
Across 32 games with White in our database, Jiri Zemen opens with 1.e4 (100% of games). Against 1.e4 as Black, Jiri Zemen answers 1...e5 (82% of games), 1...d5 (18% of games). Against 1.d4: 1...d5 (100% of games).
What openings does Jiri Zemen play as White?
As White, Jiri Zemen's most-played openings in our database are: Four Knights Game: Scotch Variation (8 games, 25.0% win rate); French: Exchange Variation (4 games, 0.0% win rate); Caro-Kann: Two Knights Variation (3 games, 33.3% win rate). The full breakdown of 32 games with White is in the table above.
What openings does Jiri Zemen play as Black?
As Black, Jiri Zemen most often plays: Italian Game: Classical Variation (5 games, 40.0% win rate); Scandinavian Defense: Modern Variation (4 games, 50.0% win rate); Four Knights Game: Italian Variation (3 games, 33.3% win rate). See the table above for the top ten Black openings across 36 games.
What is Jiri Zemen's FIDE rating?
Jiri Zemen is currently rated 1,800 in classical chess, 1,827 in rapid and 1,748 in blitz. Peak classical rating: 1,873 (Nov 2022).
How many games has Jiri Zemen played?
Our database contains 68 games by Jiri Zemen, covering Sep 2022 to Jul 2026. Overall record: 19 wins, 21 draws, 28 losses (27.9% win rate).
How do I prepare against Jiri Zemen?
68 games by Jiri Zemen 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.