Prepare against William Alfredo Arias
CM · Dominican Republic · World #30,625 classical · FIDE ID 6400655
When preparing against William Alfredo Arias, expect 1.e4 in 79% of White games. Against 1.e4 the reply is 1...c5 (93% of games); against 1.d4, 1...c5 (64%).
Our database contains 91 games by William Alfredo Arias, covering Apr 2004 to Jul 2026. Below you'll find William Alfredo Arias's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout William Alfredo Arias 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 | 1,982 | 2,037 | Feb 2016 |
| Rapid | 1,962 | 1,990 | Jun 2025 |
| Blitz | 1,963 | 1,989 | Jul 2014 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 91 | 38 | 10 | 43 | 41.8% |
| As White | 47 | 21 | 5 | 21 | 44.7% |
| As Black | 44 | 17 | 5 | 22 | 38.6% |
Move-by-move preparation stats
Straight from the preparation tree built over all of William Alfredo Arias's games — the same tree the interactive prep board lets you walk to any depth. Scores are from William Alfredo Arias's side.
First moves as White (47 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 37 | 78.7% | 48.6% |
| d4 | 9 | 19.1% | 50.0% |
| c4 | 1 | 2.1% | 100.0% |
Main lines as White
- 1.e4 — 79% of White games, 48.6% score
- …c5 (30% of these games) — Arias usually continues Nf3 (45.5% score)
- …e5 (27% of these games) — Arias usually continues Nf3 (55.0% score)
- …e6 (16% of these games) — Arias usually continues d4 (16.7% score)
- 1.d4 — 19% of White games, 50.0% score
- …Nf6 (44% of these games) — Arias usually continues Nf3 (33.3% score)
- …c5 (33% of these games) — Arias usually continues e3 (50.0% score)
- …d5 (11% of these games) — Arias usually continues c4 (100.0% score)
As Black against 1.e4 (27 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 25 | 92.6% | 40.0% |
| d5 | 1 | 3.7% | 0.0% |
As Black against 1.d4 (11 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 7 | 63.6% | 57.1% |
| Nf6 | 2 | 18.2% | 0.0% |
| d5 | 2 | 18.2% | 50.0% |
William Alfredo Arias's chess games
All 91 games by William Alfredo Arias in the Chess.ceo database (Apr 2004 - 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: 38 wins, 10 draws, 43 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C02 | French: Advance Variation | 6 | 1/0/5 | 16.7% |
| B90 | Sicilian: Najdorf | 5 | 2/0/3 | 40.0% |
| B07 | Pirc Defense | 5 | 2/1/2 | 40.0% |
| B19 | Caro-Kann: Classical | 3 | 2/0/1 | 66.7% |
| B40 | Sicilian | 3 | 1/0/2 | 33.3% |
| A45 | Benoni Defense | 3 | 2/0/1 | 66.7% |
| C50 | Italian Game: Giuoco Pianissimo | 3 | 2/0/1 | 66.7% |
| C54 | Italian Game | 2 | 2/0/0 | 100.0% |
| D04 | Indian Defense | 2 | 0/2/0 | 0.0% |
| C90 | Ruy Lopez: Closed | 2 | 0/1/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B90 | Sicilian: Najdorf | 13 | 2/3/8 | 15.4% |
| A43 | Benoni Defense | 6 | 3/0/3 | 50.0% |
| B20 | Sicilian | 5 | 2/0/3 | 40.0% |
| E81 | King's Indian: Sämisch | 3 | 0/1/2 | 0.0% |
| D02 | Queen's Pawn Game | 2 | 2/0/0 | 100.0% |
| B21 | Sicilian: Grand Prix Attack | 2 | 1/1/0 | 50.0% |
| B38 | English Opening | 2 | 1/0/1 | 50.0% |
| B23 | Sicilian: Closed | 2 | 1/0/1 | 50.0% |
| A43 | Sicilian: Smith-Morra Gambit | 1 | 0/0/1 | 0.0% |
| C00 | Sicilian: Wing Gambit | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Apr 2017 | Julio Antonio Martinez Castillo | 2,164 | ch-DOM | C02 |
| Feb 2023 | Ruddy Antonio Mendez | 2,144 | ch-DOM | B00 |
| Oct 2015 | Braulio Fernando Ramirez Reyes | 2,143 | Santo Domingo La Raza Open | A43 |
| Apr 2016 | Luis L. Lorenzo De Los Santos | 2,134 | ch-DOM | C44 |
| Apr 2017 | Dario Alberto Jimenez Martinez | 2,121 | ch-DOM | C02 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-DOM | 2023 | 40 | 16 | 1,951 |
| COL Subzt 2.3.4 | 2021 | 9 | 5.5 | 1,780 |
| Santo Domingo La Raza Open | 2015 | 7 | 4.5 | 2,173 |
| chT-COL | 2018 | 5 | 2 | 1,928 |
| chT-DOM | 2017 | 5 | 1.5 | 1,720 |
| Santiago de los Caballeros Open | 2015 | 5 | 3.5 | 2,219 |
| ch-COL U26 | 2018 | 4 | 2 | 1,988 |
| Santo Domingo Inmortales Open | 2016 | 4 | 1 | 1,847 |
Interactive opening tree from all 91 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find William Alfredo Arias's chess games?
91 games by William Alfredo Arias, from Apr 2004 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 William Alfredo Arias has played.
What does William Alfredo Arias play on the first move as White?
Across 47 games with White in our database, William Alfredo Arias opens with 1.e4 (79% of games), 1.d4 (19% of games), 1.c4 (2% of games). Against 1.e4 as Black, William Alfredo Arias answers 1...c5 (93% of games), 1...d5 (4% of games). Against 1.d4: 1...c5 (64% of games), 1...Nf6 (18% of games), 1...d5 (18% of games).
What openings does William Alfredo Arias play as White?
As White, William Alfredo Arias's most-played openings in our database are: French: Advance Variation (6 games, 16.7% win rate); Sicilian: Najdorf (5 games, 40.0% win rate); Pirc Defense (5 games, 40.0% win rate). The full breakdown of 47 games with White is in the table above.
What openings does William Alfredo Arias play as Black?
As Black, William Alfredo Arias most often plays: Sicilian: Najdorf (13 games, 15.4% win rate); Benoni Defense (6 games, 50.0% win rate); Sicilian (5 games, 40.0% win rate). See the table above for the top ten Black openings across 44 games.
What is William Alfredo Arias's FIDE rating?
William Alfredo Arias is currently rated 1,982 in classical chess, 1,962 in rapid and 1,963 in blitz. Peak classical rating: 2,037 (Feb 2016).
How many games has William Alfredo Arias played?
Our database contains 91 games by William Alfredo Arias, covering Apr 2004 to Jul 2026. Overall record: 38 wins, 10 draws, 43 losses (41.8% win rate).
How do I prepare against William Alfredo Arias?
91 games by William Alfredo Arias 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.