Prepare against Petr Blaha
Czechia · World #41,274 classical · FIDE ID 310450
When preparing against Petr Blaha, expect 1.d4 in 97% of White games. Against 1.e4 the reply is 1...e5 (93% of games); against 1.d4, 1...Nf6 (52%). Lowest win rate among frequent openings: Petrov's Defense as Black, 26.2% over 42 games.
Our database contains 298 games by Petr Blaha, covering Apr 2003 to Jul 2026. Below you'll find Petr Blaha's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Petr Blaha 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 | 1,929 | 2,180 | Apr 2003 |
| Rapid | 1,930 | 2,002 | Dec 2019 |
| Blitz | 1,897 | 1,915 | Oct 2023 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 298 | 74 | 130 | 94 | 24.8% |
| As White | 149 | 42 | 67 | 40 | 28.2% |
| As Black | 149 | 32 | 63 | 54 | 21.5% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Petr Blaha's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Petr Blaha's side.
First moves as White (149 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 144 | 96.6% | 51.0% |
| e4 | 4 | 2.7% | 50.0% |
| Nf3 | 1 | 0.7% | 0.0% |
Main lines as White
- 1.d4 — 97% of White games, 51.0% score
- …Nf6 (49% of these games) — Blaha usually continues Nf3 (53.6% score)
- …d5 (33% of these games) — Blaha usually continues Nf3 (54.7% score)
- …f5 (4% of these games) — Blaha usually continues e3 (33.3% score)
- 1.e4 — 3% of White games, 50.0% score
- …c5 (50% of these games) — Blaha usually continues Nf3 (50.0% score)
- …e5 (25% of these games) — Blaha usually continues Nf3 (0.0% score)
- …c6 (25% of these games) — Blaha usually continues d4 (100.0% score)
As Black against 1.e4 (86 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 80 | 93.0% | 46.9% |
| d5 | 4 | 4.7% | 50.0% |
| d6 | 1 | 1.2% | 100.0% |
| c5 | 1 | 1.2% | 0.0% |
As Black against 1.d4 (33 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 17 | 51.5% | 29.4% |
| d5 | 14 | 42.4% | 25.0% |
| d6 | 1 | 3.0% | 50.0% |
| c5 | 1 | 3.0% | 50.0% |
Petr Blaha's chess games
All 298 games by Petr Blaha 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: 74 wins, 130 draws, 94 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D05 | Indian Defense | 42 | 14/17/11 | 33.3% |
| D02 | Queen's Pawn Game | 20 | 7/9/4 | 35.0% |
| B07 | King's Indian Defense | 13 | 4/7/2 | 30.8% |
| D04 | Colle System | 12 | 4/5/3 | 33.3% |
| D11 | Slav Defense | 11 | 0/8/3 | 0.0% |
| A43 | Benoni Defense | 10 | 3/4/3 | 30.0% |
| A80 | Dutch Defense | 6 | 2/3/1 | 33.3% |
| B06 | Modern Defense | 4 | 1/3/0 | 25.0% |
| A80 | Horwitz Defense | 4 | 1/2/1 | 25.0% |
| E90 | King's Indian Defense: Orthodox Variation | 3 | 1/1/1 | 33.3% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C42 | Petrov's Defense | 42 | 11/20/11 | 26.2% |
| D36 | Indian Defense | 11 | 1/3/7 | 9.1% |
| C49 | Four Knights Game: Spanish Variation | 11 | 1/4/6 | 9.1% |
| C26 | Vienna Game | 10 | 2/5/3 | 20.0% |
| A67 | Benoni Defense | 10 | 1/5/4 | 10.0% |
| A34 | English Opening | 7 | 2/3/2 | 28.6% |
| C47 | Four Knights Game: Scotch Variation | 6 | 1/5/0 | 16.7% |
| D45 | Slav Defense | 6 | 1/2/3 | 16.7% |
| A34 | English Opening: Symmetrical | 5 | 1/2/2 | 20.0% |
| C24 | Bishop's Opening | 4 | 1/1/2 | 25.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 1991 | Alexander N Panchenko | 2,430 | Bratislava Slovan Open | A09 |
| Jun 2011 | Jan Sosna | 2,396 | Slovacky Open | D02 |
| Jan 1991 | Ladislav Langner | 2,380 | Bratislava Slovan Open | A48 |
| Jan 1996 | Ladislav Mikulcik | 2,305 | chT2c-CZE 9596 | D04 |
| Jan 1996 | Petr Hrabe | 2,305 | chT2c-CZE 9596 | D05 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Stare Mesto Open | 2017 | 38 | 12.5 | 2,005 |
| Bratislava Slovan Open | 1991 | 18 | 10 | 2,388 |
| chT-CSR | 1992 | 13 | 7.5 | 2,344 |
| chT2M-MOR 0203 | 2003 | 11 | 4.5 | 2,073 |
| chT2e-CZE 0405 | 2005 | 11 | 3.5 | 1,951 |
| chT-Bystrice nP Region A | 1973 | 11 | 7.5 | – |
| chT2c-CZE 9596 | 1996 | 11 | 6.5 | 2,319 |
| chT-Morava 9798 | 1998 | 11 | 4.5 | 2,146 |
Interactive opening tree from all 298 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Petr Blaha's chess games?
298 games by Petr Blaha, 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 Petr Blaha has played.
What does Petr Blaha play on the first move as White?
Across 149 games with White in our database, Petr Blaha opens with 1.d4 (97% of games), 1.e4 (3% of games), 1.Nf3 (1% of games). Against 1.e4 as Black, Petr Blaha answers 1...e5 (93% of games), 1...d5 (5% of games), 1...d6 (1% of games). Against 1.d4: 1...Nf6 (52% of games), 1...d5 (42% of games), 1...d6 (3% of games).
What openings does Petr Blaha play as White?
As White, Petr Blaha's most-played openings in our database are: Indian Defense (42 games, 33.3% win rate); Queen's Pawn Game (20 games, 35.0% win rate); King's Indian Defense (13 games, 30.8% win rate). The full breakdown of 149 games with White is in the table above.
What openings does Petr Blaha play as Black?
As Black, Petr Blaha most often plays: Petrov's Defense (42 games, 26.2% win rate); Indian Defense (11 games, 9.1% win rate); Four Knights Game: Spanish Variation (11 games, 9.1% win rate). See the table above for the top ten Black openings across 149 games.
What is Petr Blaha's FIDE rating?
Petr Blaha is currently rated 1,929 in classical chess, 1,930 in rapid and 1,897 in blitz. Peak classical rating: 2,180 (Apr 2003).
How many games has Petr Blaha played?
Our database contains 298 games by Petr Blaha, covering Apr 2003 to Jul 2026. Overall record: 74 wins, 130 draws, 94 losses (24.8% win rate).
How do I prepare against Petr Blaha?
298 games by Petr Blaha 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.