Prepare against Arnor Serafim Junior
Brazil · World #96,097 classical · FIDE ID 2130750
When preparing against Arnor Serafim Junior, expect 1.c4 in 55% of White games. Against 1.e4 the reply is 1...c5 (97% of games); against 1.d4, 1...Nf6 (87%). Lowest win rate among frequent openings: Réti Opening as White, 26.6% over 64 games.
Our database contains 542 games by Arnor Serafim Junior, covering Nov 2009 to Jul 2026. Below you'll find Arnor Serafim Junior's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Arnor Serafim Junior 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 | 1,741 | 1,978 | Jan 2010 |
| Rapid | 1,850 | 1,867 | Aug 2024 |
| Blitz | 1,845 | 1,861 | Apr 2018 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 542 | 203 | 108 | 231 | 37.5% |
| As White | 278 | 112 | 50 | 116 | 40.3% |
| As Black | 264 | 91 | 58 | 115 | 34.5% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Arnor Serafim Junior's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Arnor Serafim Junior's side.
First moves as White (278 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c4 | 153 | 55.0% | 55.2% |
| Nf3 | 118 | 42.4% | 42.8% |
| d4 | 6 | 2.2% | 16.7% |
| e4 | 1 | 0.4% | 100.0% |
Main lines as White
- 1.c4 — 55% of White games, 55.2% score
- …Nf6 (27% of these games) — Junior usually continues Nf3 (55.9% score)
- …e5 (24% of these games) — Junior usually continues Nc3 (63.5% score)
- …c5 (16% of these games) — Junior usually continues Nc3 (59.1% score)
- 1.Nf3 — 42% of White games, 42.8% score
- …Nf6 (42% of these games) — Junior usually continues g3 (44.4% score)
- …d5 (27% of these games) — Junior usually continues g3 (42.2% score)
- …c5 (10% of these games) — Junior usually continues g3 (45.5% score)
As Black against 1.e4 (135 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 131 | 97.0% | 43.9% |
| Nf6 | 3 | 2.2% | 33.3% |
| d6 | 1 | 0.7% | 0.0% |
As Black against 1.d4 (89 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 77 | 86.5% | 49.4% |
| g6 | 4 | 4.5% | 50.0% |
| c5 | 4 | 4.5% | 50.0% |
| d5 | 3 | 3.4% | 0.0% |
| d6 | 1 | 1.1% | 0.0% |
Arnor Serafim Junior's chess games
All 542 games by Arnor Serafim Junior in the Chess.ceo database (Nov 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: 203 wins, 108 draws, 231 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A07 | Réti Opening | 64 | 17/15/32 | 26.6% |
| A39 | English Opening | 59 | 32/5/22 | 54.2% |
| A29 | English Opening: Reverse Sicilian | 38 | 23/3/12 | 60.5% |
| A36 | English Opening: Symmetrical | 25 | 9/7/9 | 36.0% |
| A26 | Modern Defense | 17 | 6/5/6 | 35.3% |
| A26 | Réti Opening: Symmetrical Defense | 15 | 6/2/7 | 40.0% |
| E06 | Catalan | 9 | 1/4/4 | 11.1% |
| A07 | King's Indian Attack | 8 | 5/1/2 | 62.5% |
| A12 | English Opening: Slav Setup | 7 | 1/0/6 | 14.3% |
| A10 | English Opening: Dutch Defense | 5 | 2/0/3 | 40.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B42 | Sicilian | 91 | 34/18/39 | 37.4% |
| A48 | Indian Defense | 32 | 11/7/14 | 34.4% |
| B23 | Sicilian: Closed | 12 | 5/2/5 | 41.7% |
| B49 | Sicilian: Taimanov | 10 | 1/2/7 | 10.0% |
| A22 | English Opening | 10 | 2/4/4 | 20.0% |
| B22 | Sicilian: Alapin | 9 | 1/3/5 | 11.1% |
| E94 | King's Indian Defense: Orthodox Variation | 9 | 4/2/3 | 44.4% |
| A48 | London System | 8 | 1/5/2 | 12.5% |
| A20 | English Opening: Reverse Sicilian | 7 | 3/3/1 | 42.9% |
| A70 | Benoni Defense | 7 | 4/0/3 | 57.1% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Mar 2016 | David Borensztajn | 2,301 | 7th Joao Pessoa Fischer Memorial | A12 |
| Jan 2014 | Eduardo da Costa Marra | 2,253 | 17th Sao Paulo Hebraica Open | A11 |
| Feb 2014 | Acyr Rogerio Calcado | 2,155 | Curitiba CC 76 Anniversary | B42 |
| Jul 2012 | Joaquim de Deus Filho | 2,116 | Sao Jose do Rio Preto 80 Ann Colegiao | B23 |
| Oct 2014 | Carlos Henrique Lopes Pinto | 2,116 | 10th American Continental | A16 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-BRA Amateur U2000 | 2019 | 20 | 10.5 | 1,900 |
| Caioba Telecom Open | 2018 | 16 | 9 | 1,913 |
| ch-Pan American U2000 | 2024 | 16 | 7 | 1,786 |
| ch-Pan American Seniors 50 | 2023 | 14 | 3.5 | 1,780 |
| ch-BRA Amateur | 2015 | 13 | 7.5 | 1,827 |
| ch-BRA Seniors 50+ | 2019 | 12 | 6 | 1,795 |
| Pocos de Caldas Open | 2018 | 12 | 5.5 | 1,794 |
| 29th Wch Seniors 50 | 2019 | 11 | 4 | 1,832 |
Interactive opening tree from all 542 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Arnor Serafim Junior's chess games?
542 games by Arnor Serafim Junior, from Nov 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 Arnor Serafim Junior has played.
What does Arnor Serafim Junior play on the first move as White?
Across 278 games with White in our database, Arnor Serafim Junior opens with 1.c4 (55% of games), 1.Nf3 (42% of games), 1.d4 (2% of games). Against 1.e4 as Black, Arnor Serafim Junior answers 1...c5 (97% of games), 1...Nf6 (2% of games), 1...d6 (1% of games). Against 1.d4: 1...Nf6 (87% of games), 1...g6 (4% of games), 1...c5 (4% of games).
What openings does Arnor Serafim Junior play as White?
As White, Arnor Serafim Junior's most-played openings in our database are: Réti Opening (64 games, 26.6% win rate); English Opening (59 games, 54.2% win rate); English Opening: Reverse Sicilian (38 games, 60.5% win rate). The full breakdown of 278 games with White is in the table above.
What openings does Arnor Serafim Junior play as Black?
As Black, Arnor Serafim Junior most often plays: Sicilian (91 games, 37.4% win rate); Indian Defense (32 games, 34.4% win rate); Sicilian: Closed (12 games, 41.7% win rate). See the table above for the top ten Black openings across 264 games.
What is Arnor Serafim Junior's FIDE rating?
Arnor Serafim Junior is currently rated 1,741 in classical chess, 1,850 in rapid and 1,845 in blitz. Peak classical rating: 1,978 (Jan 2010).
How many games has Arnor Serafim Junior played?
Our database contains 542 games by Arnor Serafim Junior, covering Nov 2009 to Jul 2026. Overall record: 203 wins, 108 draws, 231 losses (37.5% win rate).
How do I prepare against Arnor Serafim Junior?
542 games by Arnor Serafim Junior 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.