Prepare against Ernesto J. Fernandez Guillen
IM · Cuba · World #1,223 classical · FIDE ID 3512428
Our database contains 1,125 games by Ernesto J. Fernandez Guillen, covering Oct 2006 to Aug 2026. Below you'll find Ernesto J. Fernandez Guillen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Ernesto J. Fernandez Guillen 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 | 2,431 | 2,488 | Dec 2025 |
| Rapid | 2,479 | 2,481 | Dec 2023 |
| Blitz | 2,349 | 2,453 | Dec 2022 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 1,125 | 609 | 172 | 342 | 54.1% |
| As White | 558 | 314 | 89 | 153 | 56.3% |
| As Black | 567 | 295 | 83 | 189 | 52.0% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Ernesto J. Fernandez Guillen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Ernesto J. Fernandez Guillen's side.
First moves as White (558 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 523 | 93.7% | 63.6% |
| Nf3 | 29 | 5.2% | 81.0% |
| d4 | 5 | 0.9% | 50.0% |
| g3 | 1 | 0.2% | 100.0% |
Main lines as White
- 1.e4 — 94% of White games, 63.6% score
- …c5 (39% of these games) — Guillen usually continues Nf3 (65.3% score)
- …e5 (24% of these games) — Guillen usually continues Nf3 (56.2% score)
- …c6 (14% of these games) — Guillen usually continues d4 (66.9% score)
- 1.Nf3 — 5% of White games, 81.0% score
- …Nf6 (45% of these games) — Guillen usually continues g3 (72.7% score)
- …d5 (41% of these games) — Guillen usually continues g3 (86.4% score)
- …c5 (7% of these games) — Guillen usually continues g3 (75.0% score)
As Black against 1.e4 (258 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 218 | 84.5% | 67.2% |
| c5 | 38 | 14.7% | 52.6% |
| d6 | 1 | 0.4% | 100.0% |
As Black against 1.d4 (193 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 185 | 95.9% | 54.1% |
| d5 | 5 | 2.6% | 20.0% |
| g6 | 2 | 1.0% | 0.0% |
Ernesto J. Fernandez Guillen's chess games
All 1,125 games by Ernesto J. Fernandez Guillen in the Chess.ceo database (Oct 2006 - 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: 609 wins, 172 draws, 342 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B57 | Sicilian | 76 | 42/11/23 | 55.3% |
| B12 | Caro-Kann: Advance Variation | 72 | 43/10/19 | 59.7% |
| C56 | Italian Game | 62 | 26/15/21 | 41.9% |
| B86 | Sicilian: Najdorf | 50 | 31/5/14 | 62.0% |
| C11 | French Defense | 47 | 32/5/10 | 68.1% |
| C44 | Scotch Game | 24 | 12/6/4 | 50.0% |
| A07 | Réti Opening | 21 | 13/5/3 | 61.9% |
| B48 | Sicilian: Taimanov | 18 | 13/1/4 | 72.2% |
| B06 | Modern Defense | 15 | 10/1/4 | 66.7% |
| C06 | French: Tarrasch Variation | 15 | 10/1/4 | 66.7% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C63 | Ruy Lopez: Schliemann | 63 | 45/5/13 | 71.4% |
| C50 | Italian Game | 50 | 31/3/16 | 62.0% |
| D78 | Indian Defense | 41 | 17/5/19 | 41.5% |
| C46 | Scotch Game | 35 | 23/6/6 | 65.7% |
| E97 | King's Indian Defense: Orthodox Variation | 27 | 14/1/12 | 51.9% |
| A15 | English Opening | 26 | 12/7/7 | 46.2% |
| A25 | English Opening: Reverse Sicilian | 22 | 15/2/5 | 68.2% |
| E18 | Queen's Indian Defense | 20 | 7/4/9 | 35.0% |
| C46 | Three Knights Opening | 19 | 11/2/6 | 57.9% |
| B38 | Sicilian | 18 | 7/5/6 | 38.9% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jan 2023 | Ian Nepomniachtchi | 2,793 | Titled Tue Early | C39 |
| Oct 2022 | Alireza Firouzja | 2,785 | Titled Tue Early | D03 |
| Jan 2024 | Dmitry Andreikin | 2,729 | Titled Tue Early | B40 |
| May 2023 | Sanan Sjugirov | 2,712 | Titled Tue Late | B86 |
| May 2025 | Pentala Harikrishna | 2,707 | Titled Tue Late | A48 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2025 | 640 | 399.5 | 2,477 |
| Havana Municipal Plaza | 2007 | 14 | 8.5 | 2,196 |
| 2nd Gran Canaria Online Blitz | 2022 | 13 | 10 | 2,401 |
| Speed Chess Q2 | 2022 | 13 | 5.5 | 2,292 |
| Granada Chess Open 2026 | 2026 | 12 | 8 | 2,484 |
| 10th Sitges Sunway Open | 2023 | 10 | 8 | 2,595 |
| 2nd Sunway Formentera Open | 2023 | 10 | 5 | 2,375 |
| Havana Cobo Memorial 2nd | 2018 | 10 | 6 | 2,498 |
Interactive opening tree from all 1,125 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Ernesto J. Fernandez Guillen's chess games?
1,125 games by Ernesto J. Fernandez Guillen, from Oct 2006 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 Ernesto J. Fernandez Guillen has played.
What does Ernesto J. Fernandez Guillen play on the first move as White?
Across 558 games with White in our database, Ernesto J. Fernandez Guillen opens with 1.e4 (94% of games), 1.Nf3 (5% of games), 1.d4 (1% of games). Against 1.e4 as Black, Ernesto J. Fernandez Guillen answers 1...e5 (84% of games), 1...c5 (15% of games), 1...d6 (0% of games). Against 1.d4: 1...Nf6 (96% of games), 1...d5 (3% of games), 1...g6 (1% of games).
What openings does Ernesto J. Fernandez Guillen play as White?
As White, Ernesto J. Fernandez Guillen's most-played openings in our database are: Sicilian (76 games, 55.3% win rate); Caro-Kann: Advance Variation (72 games, 59.7% win rate); Italian Game (62 games, 41.9% win rate). The full breakdown of 558 games with White is in the table above.
What openings does Ernesto J. Fernandez Guillen play as Black?
As Black, Ernesto J. Fernandez Guillen most often plays: Ruy Lopez: Schliemann (63 games, 71.4% win rate); Italian Game (50 games, 62.0% win rate); Indian Defense (41 games, 41.5% win rate). See the table above for the top ten Black openings across 567 games.
What is Ernesto J. Fernandez Guillen's FIDE rating?
Ernesto J. Fernandez Guillen is currently rated 2,431 in classical chess, 2,479 in rapid and 2,349 in blitz. Peak classical rating: 2,488 (Dec 2025).
How many games has Ernesto J. Fernandez Guillen played?
Our database contains 1,125 games by Ernesto J. Fernandez Guillen, covering Oct 2006 to Aug 2026. Overall record: 609 wins, 172 draws, 342 losses (54.1% win rate).
How do I prepare against Ernesto J. Fernandez Guillen?
1,125 games by Ernesto J. Fernandez Guillen 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.