Prepare against Istvan Hajdu
CM · Hungary · World #106,208 classical · FIDE ID 707627
When preparing against Istvan Hajdu, expect 1.e4 in 95% of White games. Against 1.e4 the reply is 1...Nc6 (52% of games); against 1.d4, 1...d5 (72%). Lowest win rate among frequent openings: Sicilian as White, 31.0% over 29 games.
Our database contains 248 games by Istvan Hajdu, covering Apr 2003 to Aug 2026. Below you'll find Istvan Hajdu's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Istvan Hajdu 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 | 1,711 | 2,180 | Apr 2003 |
| Rapid | 1,874 | 2,070 | Jun 2014 |
| Blitz | 1,962 | 1,962 | Aug 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 248 | 78 | 110 | 60 | 31.5% |
| As White | 132 | 43 | 60 | 29 | 32.6% |
| As Black | 116 | 35 | 50 | 31 | 30.2% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Istvan Hajdu's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Istvan Hajdu's side.
First moves as White (132 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 126 | 95.5% | 56.3% |
| d4 | 5 | 3.8% | 30.0% |
| c4 | 1 | 0.8% | 50.0% |
Main lines as White
- 1.e4 — 95% of White games, 56.3% score
- …c5 (48% of these games) — Hajdu usually continues Nf3 (53.4% score)
- …e5 (15% of these games) — Hajdu usually continues Nf3 (71.1% score)
- …e6 (10% of these games) — Hajdu usually continues d4 (83.3% score)
- 1.d4 — 4% of White games, 30.0% score
- …Nf6 (80% of these games) — Hajdu usually continues Nf3 (50.0% score)
- …d5 (20% of these games) — Hajdu usually continues Nf3 (0.0% score)
As Black against 1.e4 (48 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nc6 | 25 | 52.1% | 52.0% |
| e5 | 9 | 18.8% | 44.4% |
| d6 | 6 | 12.5% | 41.7% |
| c5 | 4 | 8.3% | 12.5% |
| d5 | 3 | 6.3% | 50.0% |
| g6 | 1 | 2.1% | 100.0% |
As Black against 1.d4 (39 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 28 | 71.8% | 55.4% |
| f5 | 8 | 20.5% | 50.0% |
| Nf6 | 2 | 5.1% | 75.0% |
| Nc6 | 1 | 2.6% | 50.0% |
Istvan Hajdu's chess games
All 248 games by Istvan Hajdu 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: 78 wins, 110 draws, 60 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B53 | Sicilian | 29 | 9/9/11 | 31.0% |
| B92 | Sicilian: Najdorf | 14 | 5/6/3 | 35.7% |
| C45 | Scotch Game | 9 | 4/5/0 | 44.4% |
| B31 | Sicilian: Rossolimo | 9 | 4/3/2 | 44.4% |
| B13 | Caro-Kann: Exchange Variation | 8 | 1/6/1 | 12.5% |
| C04 | French: Tarrasch Variation | 7 | 6/1/0 | 85.7% |
| B02 | Alekhine Defense | 6 | 1/3/2 | 16.7% |
| B08 | Pirc Defense | 5 | 2/3/0 | 40.0% |
| C01 | French Defense | 4 | 1/1/2 | 25.0% |
| B01 | Scandinavian Defense: Main Line | 4 | 1/2/1 | 25.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A25 | English Opening: Reverse Sicilian | 14 | 3/8/3 | 21.4% |
| A89 | Dutch Defense | 10 | 5/2/3 | 50.0% |
| D10 | Slav Defense | 10 | 3/4/3 | 30.0% |
| D02 | Queen's Pawn Game | 10 | 3/6/1 | 30.0% |
| B00 | Nimzowitsch Defense: Kennedy Variation | 9 | 2/3/4 | 22.2% |
| C55 | Italian Game | 6 | 2/3/1 | 33.3% |
| C45 | Scotch Game | 5 | 1/2/2 | 20.0% |
| D02 | London System | 4 | 1/2/1 | 25.0% |
| B06 | Pirc Defense | 3 | 1/1/1 | 33.3% |
| A07 | Réti Opening | 3 | 1/2/0 | 33.3% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 2008 | Laszlo Balogh | 2,258 | 12th Senta Open B | C45 |
| Apr 2005 | Tibor Madi | 2,245 | chT2-HUN Toth 0405 | A26 |
| Nov 2020 | Mikhail Pesotskiy | 2,211 | Titled Tue | D11 |
| Oct 2003 | Tamas Rozsnyai | 2,151 | chT2-HUN Toth 0304 | C45 |
| Nov 2012 | Karoly Nagy | 2,121 | chT2-HUN Toth 1213 | B07 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2020 | 17 | 3 | 1,933 |
| chT2-HUN Toth 1314 | 2014 | 11 | 5.5 | 2,090 |
| chT2-HUN Toth 0910 | 2010 | 11 | 5 | 2,098 |
| chT2-HUN Toth 1516 | 2016 | 11 | 4.5 | 2,082 |
| chT2-HUN Toth 0405 | 2005 | 11 | 6.5 | 2,170 |
| chT2-HUN Toth 1213 | 2013 | 11 | 8 | 2,112 |
| chT2-HUN Toth 0304 | 2004 | 11 | 6.5 | 2,178 |
| chT2-HUN Toth 0708 | 2008 | 11 | 8 | 2,247 |
Interactive opening tree from all 248 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Istvan Hajdu's chess games?
248 games by Istvan Hajdu, 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 Istvan Hajdu has played.
What does Istvan Hajdu play on the first move as White?
Across 132 games with White in our database, Istvan Hajdu opens with 1.e4 (95% of games), 1.d4 (4% of games), 1.c4 (1% of games). Against 1.e4 as Black, Istvan Hajdu answers 1...Nc6 (52% of games), 1...e5 (19% of games), 1...d6 (13% of games). Against 1.d4: 1...d5 (72% of games), 1...f5 (21% of games), 1...Nf6 (5% of games).
What openings does Istvan Hajdu play as White?
As White, Istvan Hajdu's most-played openings in our database are: Sicilian (29 games, 31.0% win rate); Sicilian: Najdorf (14 games, 35.7% win rate); Scotch Game (9 games, 44.4% win rate). The full breakdown of 132 games with White is in the table above.
What openings does Istvan Hajdu play as Black?
As Black, Istvan Hajdu most often plays: English Opening: Reverse Sicilian (14 games, 21.4% win rate); Dutch Defense (10 games, 50.0% win rate); Slav Defense (10 games, 30.0% win rate). See the table above for the top ten Black openings across 116 games.
What is Istvan Hajdu's FIDE rating?
Istvan Hajdu is currently rated 1,711 in classical chess, 1,874 in rapid and 1,962 in blitz. Peak classical rating: 2,180 (Apr 2003).
How many games has Istvan Hajdu played?
Our database contains 248 games by Istvan Hajdu, covering Apr 2003 to Aug 2026. Overall record: 78 wins, 110 draws, 60 losses (31.5% win rate).
How do I prepare against Istvan Hajdu?
248 games by Istvan Hajdu 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.