Prepare against Istvan Koncz
Hungary · World #42,594 classical · FIDE ID 743828
Our database contains 42 games by Istvan Koncz, covering Jan 2008 to Aug 2026. Below you'll find Istvan Koncz's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Istvan Koncz 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 | 1,923 | 1,949 | Nov 2025 |
| Rapid | 1,852 | 1,869 | Jun 2024 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 42 | 12 | 15 | 15 | 28.6% |
| As White | 21 | 7 | 8 | 6 | 33.3% |
| As Black | 21 | 5 | 7 | 9 | 23.8% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Istvan Koncz's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Istvan Koncz's side.
First moves as White (21 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c4 | 20 | 95.2% | 52.5% |
| e4 | 1 | 4.8% | 50.0% |
Main lines as White
- 1.c4 — 95% of White games, 52.5% score
- …e5 (25% of these games) — Koncz usually continues Nc3 (70.0% score)
- …Nf6 (25% of these games) — Koncz usually continues Nc3 (66.7% score)
- …e6 (15% of these games) — Koncz usually continues Nc3 (100.0% score)
- 1.e4 — 5% of White games, 50.0% score
- …c5 (100% of these games) — Koncz usually continues Nf3 (50.0% score)
As Black against 1.e4 (17 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d6 | 8 | 47.1% | 50.0% |
| c5 | 5 | 29.4% | 40.0% |
| g6 | 2 | 11.8% | 25.0% |
| c6 | 1 | 5.9% | 50.0% |
| e6 | 1 | 5.9% | 0.0% |
As Black against 1.d4 (3 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d6 | 2 | 66.7% | 50.0% |
| Nf6 | 1 | 33.3% | 0.0% |
Istvan Koncz's chess games
All 42 games by Istvan Koncz in the Chess.ceo database (Jan 2008 - 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: 12 wins, 15 draws, 15 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A21 | English Opening: Reverse Sicilian | 6 | 4/1/1 | 66.7% |
| A17 | English Opening | 4 | 1/2/1 | 25.0% |
| A36 | English Opening: Symmetrical | 2 | 0/2/0 | 0.0% |
| D75 | Grünfeld Defense | 2 | 0/1/1 | 0.0% |
| A56 | Benoni Defense | 2 | 0/0/2 | 0.0% |
| D10 | English Opening: Slav Setup | 2 | 0/1/1 | 0.0% |
| E61 | Modern Defense | 1 | 1/0/0 | 100.0% |
| E30 | Nimzo-Indian: Leningrad Variation | 1 | 1/0/0 | 100.0% |
| B56 | Sicilian | 1 | 0/1/0 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B06 | Pirc Defense | 8 | 3/2/3 | 37.5% |
| B23 | Sicilian: Closed | 2 | 0/1/1 | 0.0% |
| B83 | Sicilian: Najdorf | 2 | 1/1/0 | 50.0% |
| E61 | Indian Defense | 1 | 1/0/0 | 100.0% |
| D02 | King's Indian Defense | 1 | 0/0/1 | 0.0% |
| E76 | King's Indian Defense: Four Pawns Attack | 1 | 0/0/1 | 0.0% |
| E90 | King's Indian Defense: Orthodox Variation | 1 | 0/1/0 | 0.0% |
| B07 | Modern Defense | 1 | 0/0/1 | 0.0% |
| B12 | Caro-Kann: Advance Variation | 1 | 0/1/0 | 0.0% |
| B50 | Sicilian: Snyder Variation | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 2013 | Andras Kucsa | 1,995 | chT2-HUN Barcza 1213 | E61 |
| Sep 2010 | Laszlo Bence Nagy | 1,964 | chT2-HUN Barcza 1011 | B07 |
| Apr 2024 | Sandor Ecsedi | 1,878 | chT2-HUN Barcza 2324 | A26 |
| Mar 2023 | Imre Zelei | 1,868 | chT2-HUN Barcza 2223 | A28 |
| Sep 2011 | Lajos Sandor | 1,847 | chT2-HUN Barcza 1112 | B50 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| chT2-HUN Barcza 1011 | 2011 | 10 | 4 | 1,876 |
| chT2-HUN Barcza 1314 | 2014 | 7 | 2 | 1,664 |
| chT2-HUN Barcza 1213 | 2013 | 7 | 4 | 1,878 |
| chT2-HUN Barcza 2324 | 2024 | 6 | 3.5 | 1,991 |
| chT2-HUN Barcza 1112 | 2012 | 5 | 2.5 | 1,850 |
| chT2-HUN Barcza 2223 | 2023 | 4 | 2 | 1,942 |
| XLV Nyirseg Torna 2026 | 2026 | 2 | 1 | 1,829 |
| chT1-HUN Maroczy 2324 | 2024 | 1 | 0.5 | 2,032 |
Interactive opening tree from all 42 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Istvan Koncz's chess games?
42 games by Istvan Koncz, from Jan 2008 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 Istvan Koncz has played.
What does Istvan Koncz play on the first move as White?
Across 21 games with White in our database, Istvan Koncz opens with 1.c4 (95% of games), 1.e4 (5% of games). Against 1.e4 as Black, Istvan Koncz answers 1...d6 (47% of games), 1...c5 (29% of games), 1...g6 (12% of games). Against 1.d4: 1...d6 (67% of games), 1...Nf6 (33% of games).
What openings does Istvan Koncz play as White?
As White, Istvan Koncz's most-played openings in our database are: English Opening: Reverse Sicilian (6 games, 66.7% win rate); English Opening (4 games, 25.0% win rate); English Opening: Symmetrical (2 games, 0.0% win rate). The full breakdown of 21 games with White is in the table above.
What openings does Istvan Koncz play as Black?
As Black, Istvan Koncz most often plays: Pirc Defense (8 games, 37.5% win rate); Sicilian: Closed (2 games, 0.0% win rate); Sicilian: Najdorf (2 games, 50.0% win rate). See the table above for the top ten Black openings across 21 games.
What is Istvan Koncz's FIDE rating?
Istvan Koncz is currently rated 1,923 in classical chess, 1,852 in rapid. Peak classical rating: 1,949 (Nov 2025).
How many games has Istvan Koncz played?
Our database contains 42 games by Istvan Koncz, covering Jan 2008 to Aug 2026. Overall record: 12 wins, 15 draws, 15 losses (28.6% win rate).
How do I prepare against Istvan Koncz?
42 games by Istvan Koncz 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.