Prepare against Karel Chalus
Czechia · World #30,684 classical · FIDE ID 311723
Our database contains 236 games by Karel Chalus, covering Apr 2003 to Aug 2026. Below you'll find Karel Chalus's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Karel Chalus 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 | 1,981 | 2,150 | Apr 2007 |
| Rapid | 2,032 | 2,095 | Sep 2016 |
| Blitz | 1,995 | 2,048 | Dec 2019 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 236 | 87 | 57 | 92 | 36.9% |
| As White | 121 | 49 | 27 | 45 | 40.5% |
| As Black | 115 | 38 | 30 | 47 | 33.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Karel Chalus's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Karel Chalus's side.
First moves as White (121 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 108 | 89.3% | 50.9% |
| Nf3 | 11 | 9.1% | 63.6% |
| c4 | 2 | 1.7% | 25.0% |
Main lines as White
- 1.e4 — 89% of White games, 50.9% score
- …c5 (44% of these games) — Chalus usually continues Nf3 (41.3% score)
- …e5 (13% of these games) — Chalus usually continues Nf3 (57.7% score)
- …e6 (9% of these games) — Chalus usually continues d4 (40.0% score)
- 1.Nf3 — 9% of White games, 63.6% score
- …Nf6 (73% of these games) — Chalus usually continues g3 (50.0% score)
- …d5 (18% of these games) — Chalus usually continues g3 (100.0% score)
- …c5 (9% of these games) — Chalus usually continues c4 (0.0% score)
As Black against 1.e4 (63 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 54 | 85.7% | 49.1% |
| c5 | 6 | 9.5% | 33.3% |
| b6 | 1 | 1.6% | 50.0% |
| c6 | 1 | 1.6% | 0.0% |
As Black against 1.d4 (34 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 23 | 67.6% | 54.3% |
| d5 | 10 | 29.4% | 35.0% |
| f5 | 1 | 2.9% | 0.0% |
Karel Chalus's chess games
All 236 games by Karel Chalus in the Chess.ceo database (Apr 2003 - 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: 87 wins, 57 draws, 92 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B41 | Sicilian | 15 | 2/7/6 | 13.3% |
| B85 | Sicilian: Najdorf | 11 | 4/1/6 | 36.4% |
| B06 | Modern Defense | 7 | 4/0/3 | 57.1% |
| B05 | Alekhine Defense | 6 | 1/2/3 | 16.7% |
| B34 | Sicilian: Accelerated Dragon | 5 | 2/0/3 | 40.0% |
| A31 | English Opening | 4 | 0/2/2 | 0.0% |
| B23 | Sicilian: Closed | 4 | 2/2/0 | 50.0% |
| B06 | Pirc Defense | 4 | 4/0/0 | 100.0% |
| B01 | Scandinavian Defense: Modern Variation | 4 | 2/0/2 | 50.0% |
| C87 | Ruy Lopez: Closed | 4 | 3/0/1 | 75.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C96 | Ruy Lopez: Closed | 15 | 6/5/4 | 40.0% |
| D35 | Indian Defense | 11 | 2/5/4 | 18.2% |
| A15 | English Opening | 9 | 4/2/3 | 44.4% |
| C56 | Italian Game | 9 | 4/2/3 | 44.4% |
| A61 | Benoni Defense | 6 | 3/1/2 | 50.0% |
| C84 | Ruy Lopez: Morphy Defense | 4 | 2/1/1 | 50.0% |
| C28 | Bishop's Opening | 3 | 0/1/2 | 0.0% |
| C50 | Italian Game: Giuoco Pianissimo | 3 | 1/0/2 | 33.3% |
| C41 | Four Knights Game: Scotch Variation | 3 | 1/1/1 | 33.3% |
| C54 | Italian Game: Classical Variation | 3 | 0/2/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 2004 | Robert Wiesinger | 2,265 | 10th Plzen Open A | C54 |
| Jan 2010 | Reiner Heimrath | 2,252 | 22nd Staufer Open | C50 |
| Jul 2023 | Josef Pribyl | 2,230 | 29th Klatovy Open C | A12 |
| Jan 1997 | Ralf Scherer | 2,230 | Mehlingen Open | C96 |
| Mar 2014 | Martin Jaros | 2,204 | chT2A-CZE 1314 | C83 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-CZE Betsys Online Blitz | 2021 | 13 | 6.5 | 1,995 |
| chT2A-CZE 1213 | 2013 | 11 | 5.5 | 2,088 |
| chT2A-CZE 1314 | 2014 | 11 | 8.5 | 2,294 |
| chT-CZE 2A 1415 | 2015 | 11 | 2.5 | 1,935 |
| chT1b-CZE | 1995 | 10 | 3 | 2,105 |
| chT-Pilsen Region 2223 | 2023 | 10 | 7 | 2,187 |
| chT2A-CZE 1011 | 2011 | 10 | 6 | 2,060 |
| 10th Plzen Open A | 2004 | 9 | 4.5 | 2,132 |
Interactive opening tree from all 236 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Karel Chalus's chess games?
236 games by Karel Chalus, from Apr 2003 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 Karel Chalus has played.
What does Karel Chalus play on the first move as White?
Across 121 games with White in our database, Karel Chalus opens with 1.e4 (89% of games), 1.Nf3 (9% of games), 1.c4 (2% of games). Against 1.e4 as Black, Karel Chalus answers 1...e5 (86% of games), 1...c5 (10% of games), 1...b6 (2% of games). Against 1.d4: 1...Nf6 (68% of games), 1...d5 (29% of games), 1...f5 (3% of games).
What openings does Karel Chalus play as White?
As White, Karel Chalus's most-played openings in our database are: Sicilian (15 games, 13.3% win rate); Sicilian: Najdorf (11 games, 36.4% win rate); Modern Defense (7 games, 57.1% win rate). The full breakdown of 121 games with White is in the table above.
What openings does Karel Chalus play as Black?
As Black, Karel Chalus most often plays: Ruy Lopez: Closed (15 games, 40.0% win rate); Indian Defense (11 games, 18.2% win rate); English Opening (9 games, 44.4% win rate). See the table above for the top ten Black openings across 115 games.
What is Karel Chalus's FIDE rating?
Karel Chalus is currently rated 1,981 in classical chess, 2,032 in rapid and 1,995 in blitz. Peak classical rating: 2,150 (Apr 2007).
How many games has Karel Chalus played?
Our database contains 236 games by Karel Chalus, covering Apr 2003 to Aug 2026. Overall record: 87 wins, 57 draws, 92 losses (36.9% win rate).
How do I prepare against Karel Chalus?
236 games by Karel Chalus 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.