Prepare against Karel Zajdela
SVN · World #81,529 classical · FIDE ID 14627868
When preparing against Karel Zajdela, expect 1.e4 in 70% of White games. Against 1.e4 the reply is 1...c5 (65% of games); against 1.d4, 1...Nf6 (96%). Lowest win rate among frequent openings: Sicilian as White, 27.8% over 18 games.
Our database contains 129 games by Karel Zajdela, covering Aug 2015 to Jul 2026. Below you'll find Karel Zajdela's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Karel Zajdela 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 | 1,785 | 1,952 | Sep 2018 |
| Rapid | 1,875 | 1,941 | Jan 2018 |
| Blitz | 1,827 | 1,955 | Dec 2018 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 129 | 48 | 32 | 49 | 37.2% |
| As White | 63 | 23 | 19 | 21 | 36.5% |
| As Black | 66 | 25 | 13 | 28 | 37.9% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Karel Zajdela's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Karel Zajdela's side.
First moves as White (63 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 44 | 69.8% | 48.9% |
| Nf3 | 16 | 25.4% | 53.1% |
| c4 | 2 | 3.2% | 100.0% |
| d4 | 1 | 1.6% | 50.0% |
Main lines as White
- 1.e4 — 70% of White games, 48.9% score
- …c5 (48% of these games) — Zajdela usually continues Nf3 (40.5% score)
- …e6 (11% of these games) — Zajdela usually continues Nf3 (25.0% score)
- …e5 (11% of these games) — Zajdela usually continues Nf3 (50.0% score)
- 1.Nf3 — 25% of White games, 53.1% score
- …Nf6 (44% of these games) — Zajdela usually continues g3 (62.5% score)
- …d5 (31% of these games) — Zajdela usually continues g3 (83.3% score)
- …c5 (13% of these games) — Zajdela usually continues g3 (50.0% score)
As Black against 1.e4 (34 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 22 | 64.7% | 50.0% |
| e5 | 11 | 32.4% | 13.6% |
| e6 | 1 | 2.9% | 100.0% |
As Black against 1.d4 (26 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 25 | 96.2% | 54.0% |
| d5 | 1 | 3.8% | 0.0% |
Karel Zajdela's chess games
All 129 games by Karel Zajdela in the Chess.ceo database (Aug 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: 48 wins, 32 draws, 49 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B28 | Sicilian | 18 | 5/5/8 | 27.8% |
| A07 | Réti Opening | 6 | 2/4/0 | 33.3% |
| C00 | French Defense | 4 | 0/2/2 | 0.0% |
| C45 | Scotch Game | 4 | 1/2/1 | 25.0% |
| A05 | Réti Opening: Symmetrical Defense | 3 | 2/1/0 | 66.7% |
| B51 | Sicilian: Moscow Variation | 3 | 1/0/2 | 33.3% |
| D40 | Indian Defense | 3 | 0/2/1 | 0.0% |
| B03 | Alekhine Defense | 3 | 2/0/1 | 66.7% |
| B01 | Scandinavian Defense: Main Line | 2 | 1/1/0 | 50.0% |
| B01 | Scandinavian Defense: Modern Variation | 2 | 2/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B34 | Sicilian | 9 | 3/3/3 | 33.3% |
| D55 | Indian Defense | 4 | 1/3/0 | 25.0% |
| E20 | Nimzo-Indian Defense | 4 | 2/0/2 | 50.0% |
| B22 | Sicilian: Alapin | 3 | 1/0/2 | 33.3% |
| D15 | Slav Defense | 3 | 2/0/1 | 66.7% |
| B72 | Sicilian: Dragon | 3 | 1/1/1 | 33.3% |
| A15 | English Opening | 2 | 1/0/1 | 50.0% |
| A45 | Queen's Pawn Game | 2 | 0/1/1 | 0.0% |
| C65 | Ruy Lopez: Berlin Defense | 2 | 0/1/1 | 0.0% |
| C53 | Italian Game: Classical Variation | 2 | 0/0/2 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Oct 2015 | David Murko | 2,275 | 10th Ptuj Open | B02 |
| Aug 2015 | Boris Kovac | 2,219 | Ptuj Open | B22 |
| Aug 2018 | Oliver Kukas | 2,160 | 12th Hum na Sutli Open | B51 |
| Aug 2024 | Andrej Stubljar | 2,032 | 16th Hum na Sutli Open | B05 |
| Jan 2024 | Ivan Ivancic | 2,001 | 12th Krapina Open | D11 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| chT2-SLO East | 2018 | 23 | 14.5 | 1,978 |
| Ptuj Open | 2018 | 18 | 9 | 1,813 |
| 35th ch-SLO | 2025 | 9 | 5 | 1,802 |
| 29th ch-SLO | 2019 | 9 | 4 | 1,802 |
| 10th Ptuj Open | 2015 | 9 | 5 | 1,930 |
| 32nd ch-SLO | 2022 | 8 | 3 | 1,809 |
| chT2-SLO Ost | 2021 | 8 | 5.5 | 1,978 |
| 33rd ch-SLO | 2023 | 8 | 2.5 | 1,632 |
Interactive opening tree from all 129 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Karel Zajdela's chess games?
129 games by Karel Zajdela, from Aug 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 Karel Zajdela has played.
What does Karel Zajdela play on the first move as White?
Across 63 games with White in our database, Karel Zajdela opens with 1.e4 (70% of games), 1.Nf3 (25% of games), 1.c4 (3% of games). Against 1.e4 as Black, Karel Zajdela answers 1...c5 (65% of games), 1...e5 (32% of games), 1...e6 (3% of games). Against 1.d4: 1...Nf6 (96% of games), 1...d5 (4% of games).
What openings does Karel Zajdela play as White?
As White, Karel Zajdela's most-played openings in our database are: Sicilian (18 games, 27.8% win rate); Réti Opening (6 games, 33.3% win rate); French Defense (4 games, 0.0% win rate). The full breakdown of 63 games with White is in the table above.
What openings does Karel Zajdela play as Black?
As Black, Karel Zajdela most often plays: Sicilian (9 games, 33.3% win rate); Indian Defense (4 games, 25.0% win rate); Nimzo-Indian Defense (4 games, 50.0% win rate). See the table above for the top ten Black openings across 66 games.
What is Karel Zajdela's FIDE rating?
Karel Zajdela is currently rated 1,785 in classical chess, 1,875 in rapid and 1,827 in blitz. Peak classical rating: 1,952 (Sep 2018).
How many games has Karel Zajdela played?
Our database contains 129 games by Karel Zajdela, covering Aug 2015 to Jul 2026. Overall record: 48 wins, 32 draws, 49 losses (37.2% win rate).
How do I prepare against Karel Zajdela?
129 games by Karel Zajdela 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.