Prepare against Aleksander Kopacki
Poland · World #20,676 classical · FIDE ID 21044481
When preparing against Aleksander Kopacki, expect 1.e4 in 91% of White games. Against 1.e4 the reply is 1...c5 (68% of games); against 1.d4, 1...d5 (94%). Lowest win rate among frequent openings: Sicilian as Black, 62.5% over 16 games.
Our database contains 114 games by Aleksander Kopacki, covering May 2021 to Sep 2026. Below you'll find Aleksander Kopacki's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Aleksander Kopacki 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 | 2,052 | 2,052 | Sep 2026 |
| Rapid | 2,032 | 2,078 | May 2026 |
| Blitz | 1,999 | 2,011 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 114 | 51 | 36 | 27 | 44.7% |
| As White | 55 | 25 | 18 | 12 | 45.5% |
| As Black | 59 | 26 | 18 | 15 | 44.1% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Aleksander Kopacki's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Aleksander Kopacki's side.
First moves as White (55 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 50 | 90.9% | 61.0% |
| d4 | 4 | 7.3% | 62.5% |
| c4 | 1 | 1.8% | 100.0% |
Main lines as White
- 1.e4 — 91% of White games, 61.0% score
- …c5 (58% of these games) — Kopacki usually continues Nf3 (65.5% score)
- …c6 (14% of these games) — Kopacki usually continues d4 (50.0% score)
- …e5 (14% of these games) — Kopacki usually continues Nf3 (57.1% score)
- 1.d4 — 7% of White games, 62.5% score
- …d5 (75% of these games) — Kopacki usually continues c4 (83.3% score)
- …Nf6 (25% of these games) — Kopacki usually continues c4 (0.0% score)
As Black against 1.e4 (31 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 21 | 67.7% | 71.4% |
| c6 | 10 | 32.3% | 40.0% |
As Black against 1.d4 (18 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 17 | 94.4% | 64.7% |
| Nf6 | 1 | 5.6% | 50.0% |
Aleksander Kopacki's chess games
All 114 games by Aleksander Kopacki in the Chess.ceo database (May 2021 - Sep 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: 51 wins, 36 draws, 27 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B32 | Sicilian | 10 | 7/1/2 | 70.0% |
| B36 | Sicilian: Accelerated Dragon | 6 | 1/3/2 | 16.7% |
| B47 | Sicilian: Taimanov | 5 | 1/3/1 | 20.0% |
| B92 | Sicilian: Najdorf | 4 | 2/2/0 | 50.0% |
| B13 | Caro-Kann: Exchange Variation | 4 | 0/3/1 | 0.0% |
| C03 | French: Tarrasch Variation | 3 | 1/1/1 | 33.3% |
| B10 | Caro-Kann: Two Knights Variation | 2 | 1/0/1 | 50.0% |
| C49 | Four Knights Game: Spanish Variation | 2 | 0/1/1 | 0.0% |
| B70 | Sicilian: Dragon | 2 | 2/0/0 | 100.0% |
| C11 | French: Classical Variation | 1 | 0/1/0 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B56 | Sicilian | 16 | 10/4/2 | 62.5% |
| D10 | Slav Defense | 4 | 3/1/0 | 75.0% |
| D20 | Queen's Gambit Accepted | 4 | 2/1/1 | 50.0% |
| B18 | Caro-Kann: Classical | 4 | 1/2/1 | 25.0% |
| D04 | Colle System | 3 | 2/1/0 | 66.7% |
| A03 | Bird's opening | 3 | 0/1/2 | 0.0% |
| A07 | Réti Opening | 3 | 1/1/1 | 33.3% |
| B52 | Sicilian: Moscow Variation | 3 | 1/1/1 | 33.3% |
| B11 | Caro-Kann: Two Knights Variation | 2 | 1/0/1 | 50.0% |
| B12 | Caro-Kann: Advance Variation | 2 | 0/0/2 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jun 2026 | Piotr Stepinski | 2,137 | 22nd Baltic Pearl Open A | B12 |
| Jul 2026 | Andrzej Zeissel | 2,097 | 22nd Baltic Pearl Open A | C50 |
| Aug 2026 | Grzegorz Marek | 2,001 | 62nd Rubinstein Mem Open | A07 |
| Sep 2026 | Maciej Owczarek | 1,953 | DRUŻYNOWE MISTRZOSTWA POLSKI II LIGA 2026 - Mecze 1 - 11 | B62 |
| Jul 2026 | Marcel Bury | 1,936 | Polish Youth Rapid & Blitz Championships 2026 | Blitz | O14 | B10 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-POL U10 | 2023 | 18 | 13.5 | 1,435 |
| 62nd Rubinstein Mem Open | 2026 | 9 | 4 | 2,059 |
| 22nd Baltic Pearl Open A | 2026 | 9 | 5.5 | 2,099 |
| Eliminacje Międzywojewódzkie MA-WM C13 | 2026 | 9 | 7 | 1,990 |
| ch-POL Rapid U18 | 2023 | 9 | 6.5 | 1,587 |
| ch-EU Hybrid U08 | 2021 | 9 | 5.5 | 1,430 |
| Polish Youth Rapid & Blitz Championships 2026 | Blitz | O14 | 2026 | 8 | 5.5 | 2,048 |
| Drużynowe Mistrzostwa Polski Juniorów - II Liga | Mecze 1-10 | 2026 | 8 | 6.5 | 2,008 |
Interactive opening tree from all 114 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Aleksander Kopacki's chess games?
114 games by Aleksander Kopacki, from May 2021 to Sep 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 Aleksander Kopacki has played.
What does Aleksander Kopacki play on the first move as White?
Across 55 games with White in our database, Aleksander Kopacki opens with 1.e4 (91% of games), 1.d4 (7% of games), 1.c4 (2% of games). Against 1.e4 as Black, Aleksander Kopacki answers 1...c5 (68% of games), 1...c6 (32% of games). Against 1.d4: 1...d5 (94% of games), 1...Nf6 (6% of games).
What openings does Aleksander Kopacki play as White?
As White, Aleksander Kopacki's most-played openings in our database are: Sicilian (10 games, 70.0% win rate); Sicilian: Accelerated Dragon (6 games, 16.7% win rate); Sicilian: Taimanov (5 games, 20.0% win rate). The full breakdown of 55 games with White is in the table above.
What openings does Aleksander Kopacki play as Black?
As Black, Aleksander Kopacki most often plays: Sicilian (16 games, 62.5% win rate); Slav Defense (4 games, 75.0% win rate); Queen's Gambit Accepted (4 games, 50.0% win rate). See the table above for the top ten Black openings across 59 games.
What is Aleksander Kopacki's FIDE rating?
Aleksander Kopacki is currently rated 2,052 in classical chess, 2,032 in rapid and 1,999 in blitz. Peak classical rating: 2,052 (Sep 2026).
How many games has Aleksander Kopacki played?
Our database contains 114 games by Aleksander Kopacki, covering May 2021 to Sep 2026. Overall record: 51 wins, 36 draws, 27 losses (44.7% win rate).
How do I prepare against Aleksander Kopacki?
114 games by Aleksander Kopacki 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.