Prepare against Karol Biro
Slovakia · World #26,347 classical · FIDE ID 14900327
Our database contains 522 games by Karol Biro, covering Apr 2003 to Jul 2026. Below you'll find Karol Biro's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Karol Biro 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 | 2,009 | 2,287 | Jul 2003 |
| Blitz | 1,968 | 2,016 | Oct 2022 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 522 | 197 | 125 | 200 | 37.7% |
| As White | 265 | 118 | 59 | 88 | 44.5% |
| As Black | 257 | 79 | 66 | 112 | 30.7% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Karol Biro's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Karol Biro's side.
First moves as White (265 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c4 | 113 | 42.6% | 58.4% |
| e4 | 69 | 26.0% | 45.7% |
| d4 | 39 | 14.7% | 50.0% |
| Nf3 | 30 | 11.3% | 66.7% |
| g3 | 10 | 3.8% | 80.0% |
| f4 | 3 | 1.1% | 50.0% |
Main lines as White
- 1.c4 — 43% of White games, 58.4% score
- …Nf6 (39% of these games) — Biro usually continues Nc3 (59.1% score)
- …e5 (20% of these games) — Biro usually continues Nc3 (52.3% score)
- …c5 (12% of these games) — Biro usually continues Nf3 (40.0% score)
- 1.e4 — 26% of White games, 45.7% score
- …c5 (43% of these games) — Biro usually continues Nf3 (44.1% score)
- …e6 (19% of these games) — Biro usually continues d4 (50.0% score)
- …e5 (16% of these games) — Biro usually continues Nf3 (35.0% score)
As Black against 1.e4 (127 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 35 | 27.6% | 40.0% |
| d6 | 26 | 20.5% | 40.4% |
| c5 | 24 | 18.9% | 47.9% |
| e5 | 15 | 11.8% | 50.0% |
| g6 | 9 | 7.1% | 72.2% |
| c6 | 7 | 5.5% | 71.4% |
As Black against 1.d4 (84 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 55 | 65.5% | 41.8% |
| d6 | 20 | 23.8% | 35.0% |
| d5 | 6 | 7.1% | 58.3% |
| e6 | 1 | 1.2% | 50.0% |
| c5 | 1 | 1.2% | 50.0% |
| c6 | 1 | 1.2% | 50.0% |
Karol Biro's chess games
All 522 games by Karol Biro in the Chess.ceo database (Apr 2003 - 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: 197 wins, 125 draws, 200 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| E61 | English Opening | 38 | 16/8/14 | 42.1% |
| A25 | English Opening: Reverse Sicilian | 27 | 12/4/11 | 44.4% |
| A07 | Réti Opening | 19 | 13/3/3 | 68.4% |
| B06 | Modern Defense | 14 | 7/2/5 | 50.0% |
| B50 | Sicilian | 13 | 3/2/8 | 23.1% |
| A47 | Indian Defense | 10 | 3/5/2 | 30.0% |
| A36 | English Opening: Symmetrical | 10 | 4/1/5 | 40.0% |
| C01 | French: Winawer Variation | 8 | 5/2/1 | 62.5% |
| B25 | Sicilian: Closed | 8 | 2/3/3 | 25.0% |
| B06 | Hungarian Opening | 7 | 5/2/0 | 71.4% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B07 | Pirc Defense | 29 | 10/4/15 | 34.5% |
| A53 | Indian Defense | 28 | 7/9/12 | 25.0% |
| A25 | English Opening: Reverse Sicilian | 15 | 5/3/7 | 33.3% |
| C06 | French: Tarrasch Variation | 13 | 3/4/6 | 23.1% |
| B34 | Sicilian | 11 | 5/2/4 | 45.5% |
| B15 | Modern Defense | 10 | 4/5/1 | 40.0% |
| A56 | Benoni Defense | 10 | 3/2/5 | 30.0% |
| E14 | Queen's Indian Defense | 10 | 4/4/2 | 40.0% |
| D02 | Réti Opening | 9 | 2/2/5 | 22.2% |
| A41 | Queen's Pawn Game | 8 | 1/3/4 | 12.5% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 1987 | Jan Banas | 2,390 | ch-SVK | D85 |
| Jan 1986 | Robert Tibensky | 2,380 | ch-SVK | A42 |
| Jan 1997 | Juraj Lipka | 2,370 | Bratislava Slovan Open | A48 |
| Oct 2002 | Erik Pinter | 2,357 | Bratislava Slovan Open | C11 |
| Jan 1985 | Igor Gazik | 2,335 | ch-SVK | D80 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Bratislava Slovan Open | 2003 | 56 | 35 | 2,316 |
| ch-SVK | 1987 | 50 | 29 | 2,374 |
| chT-SVK | 1995 | 24 | 12.5 | 2,301 |
| ch-Bratislava | 2003 | 16 | 9 | 2,010 |
| chT1-SVK w 0102 | 2002 | 14 | 9.5 | 2,346 |
| chT-SVK 9596 | 1996 | 12 | 3.5 | 2,102 |
| chT2A-SVK 2324 | 2024 | 11 | 2.5 | 1,835 |
| chT1W-SVK 0506 | 2006 | 11 | 7 | 2,281 |
Interactive opening tree from all 522 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Karol Biro's chess games?
522 games by Karol Biro, from Apr 2003 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 Karol Biro has played.
What does Karol Biro play on the first move as White?
Across 265 games with White in our database, Karol Biro opens with 1.c4 (43% of games), 1.e4 (26% of games), 1.d4 (15% of games). Against 1.e4 as Black, Karol Biro answers 1...e6 (28% of games), 1...d6 (20% of games), 1...c5 (19% of games). Against 1.d4: 1...Nf6 (65% of games), 1...d6 (24% of games), 1...d5 (7% of games).
What openings does Karol Biro play as White?
As White, Karol Biro's most-played openings in our database are: English Opening (38 games, 42.1% win rate); English Opening: Reverse Sicilian (27 games, 44.4% win rate); Réti Opening (19 games, 68.4% win rate). The full breakdown of 265 games with White is in the table above.
What openings does Karol Biro play as Black?
As Black, Karol Biro most often plays: Pirc Defense (29 games, 34.5% win rate); Indian Defense (28 games, 25.0% win rate); English Opening: Reverse Sicilian (15 games, 33.3% win rate). See the table above for the top ten Black openings across 257 games.
What is Karol Biro's FIDE rating?
Karol Biro is currently rated 2,009 in classical chess and 1,968 in blitz. Peak classical rating: 2,287 (Jul 2003).
How many games has Karol Biro played?
Our database contains 522 games by Karol Biro, covering Apr 2003 to Jul 2026. Overall record: 197 wins, 125 draws, 200 losses (37.7% win rate).
How do I prepare against Karol Biro?
522 games by Karol Biro 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.