Prepare against Jan Moronga
Czechia · World #80,706 classical · FIDE ID 334979
When preparing against Jan Moronga, expect 1.c4 in 100% of White games. Against 1.e4 the reply is 1...c5 (89% of games); against 1.d4, 1...d5 (100%).
Our database contains 31 games by Jan Moronga, covering Jan 2009 to Jul 2026. Below you'll find Jan Moronga's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Jan Moronga 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 | 1,787 | 1,917 | Apr 2018 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 31 | 6 | 13 | 12 | 19.4% |
| As White | 15 | 1 | 8 | 6 | 6.7% |
| As Black | 16 | 5 | 5 | 6 | 31.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Jan Moronga's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Jan Moronga's side.
First moves as White (15 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c4 | 15 | 100.0% | 33.3% |
Main lines as White
- 1.c4 — 100% of White games, 33.3% score
- …e5 (33% of these games) — Moronga usually continues Nc3 (30.0% score)
- …c5 (20% of these games) — Moronga usually continues Nc3 (50.0% score)
- …g6 (13% of these games) — Moronga usually continues Nc3 (25.0% score)
As Black against 1.e4 (9 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 8 | 88.9% | 25.0% |
| d5 | 1 | 11.1% | 50.0% |
As Black against 1.d4 (3 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 3 | 100.0% | 50.0% |
Jan Moronga's chess games
All 31 games by Jan Moronga in the Chess.ceo database (Jan 2009 - 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: 6 wins, 13 draws, 12 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A25 | English Opening: Reverse Sicilian | 5 | 0/3/2 | 0.0% |
| A34 | English Opening: Symmetrical | 3 | 0/3/0 | 0.0% |
| E94 | King's Indian Defense: Averbakh System | 2 | 0/1/1 | 0.0% |
| D13 | Slav Defense | 2 | 0/0/2 | 0.0% |
| A92 | English Opening: Dutch Defense | 1 | 0/0/1 | 0.0% |
| A18 | English Opening | 1 | 1/0/0 | 100.0% |
| E90 | Modern Defense | 1 | 0/1/0 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B43 | Sicilian | 4 | 0/1/3 | 0.0% |
| B23 | Sicilian: Closed | 2 | 1/0/1 | 50.0% |
| B21 | Sicilian: Grand Prix Attack | 2 | 0/1/1 | 0.0% |
| D13 | Slav Defense | 2 | 0/1/1 | 0.0% |
| D02 | Queen's Pawn Game | 1 | 0/1/0 | 0.0% |
| A00 | Amar Opening | 1 | 1/0/0 | 100.0% |
| B01 | Scandinavian Defense: Main Line | 1 | 0/1/0 | 0.0% |
| A03 | Bird's opening | 1 | 1/0/0 | 100.0% |
| A35 | English Opening: Symmetrical | 1 | 1/0/0 | 100.0% |
| D56 | London System | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Apr 2010 | Lubor Stolz | 1,923 | chT2A-CZE 0910 | D56 |
| Nov 2009 | Rudolf Diviak | 1,893 | 3rd Cesky Krumlov Open | A18 |
| Nov 2010 | Jaroslaw Maliszewski | 1,840 | 4th Cesky Krumlov Open | A35 |
| Nov 2010 | Frantisek Majer | 1,723 | 4th Cesky Krumlov Open | A03 |
| Nov 2009 | Jan Lastovicka | 1,535 | 3rd Cesky Krumlov Open | A00 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 4th Cesky Krumlov Open | 2010 | 9 | 4.5 | 1,939 |
| 3rd Cesky Krumlov Open | 2009 | 7 | 3.5 | 1,939 |
| Cesky Krumlov Open 2nd | 2008 | 4 | 1.5 | 1,873 |
| chT2A-CZE 1011 | 2011 | 4 | 1.5 | 1,865 |
| chT2A-CZE 1112 | 2012 | 3 | 0 | 1,585 |
| chT2A-CZE 0910 | 2010 | 1 | 1 | 2,323 |
| 1st Cesky Krumlov Open | 2007 | 1 | 0 | 1,550 |
| chT1c-CZE 9697 | 1997 | 1 | 0.5 | – |
Interactive opening tree from all 31 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Jan Moronga's chess games?
31 games by Jan Moronga, from Jan 2009 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 Jan Moronga has played.
What does Jan Moronga play on the first move as White?
Across 15 games with White in our database, Jan Moronga opens with 1.c4 (100% of games). Against 1.e4 as Black, Jan Moronga answers 1...c5 (89% of games), 1...d5 (11% of games). Against 1.d4: 1...d5 (100% of games).
What openings does Jan Moronga play as White?
As White, Jan Moronga's most-played openings in our database are: English Opening: Reverse Sicilian (5 games, 0.0% win rate); English Opening: Symmetrical (3 games, 0.0% win rate); King's Indian Defense: Averbakh System (2 games, 0.0% win rate). The full breakdown of 15 games with White is in the table above.
What openings does Jan Moronga play as Black?
As Black, Jan Moronga most often plays: Sicilian (4 games, 0.0% win rate); Sicilian: Closed (2 games, 50.0% win rate); Sicilian: Grand Prix Attack (2 games, 0.0% win rate). See the table above for the top ten Black openings across 16 games.
What is Jan Moronga's FIDE rating?
Jan Moronga is currently rated 1,787 in classical chess. Peak classical rating: 1,917 (Apr 2018).
How many games has Jan Moronga played?
Our database contains 31 games by Jan Moronga, covering Jan 2009 to Jul 2026. Overall record: 6 wins, 13 draws, 12 losses (19.4% win rate).
How do I prepare against Jan Moronga?
31 games by Jan Moronga 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.