Prepare against Maciej Kowalski
Poland · World #38,618 classical · FIDE ID 41879481
Our database contains 30 games by Maciej Kowalski, covering May 2023 to Jul 2026. Below you'll find Maciej Kowalski's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Maciej Kowalski 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 | 1,942 | 1,955 | May 2026 |
| Rapid | 1,908 | 1,964 | Feb 2026 |
| Blitz | 1,934 | 1,934 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 30 | 9 | 6 | 15 | 30.0% |
| As White | 14 | 8 | 1 | 5 | 57.1% |
| As Black | 16 | 1 | 5 | 10 | 6.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Maciej Kowalski's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Maciej Kowalski's side.
First moves as White (14 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf3 | 6 | 42.9% | 58.3% |
| d4 | 5 | 35.7% | 60.0% |
| e4 | 2 | 14.3% | 50.0% |
| Nc3 | 1 | 7.1% | 100.0% |
Main lines as White
- 1.Nf3 — 43% of White games, 58.3% score
- …Nf6 (67% of these games) — Kowalski usually continues b3 (66.7% score)
- …c6 (17% of these games) — Kowalski usually continues e4 (100.0% score)
- …g6 (17% of these games) — Kowalski usually continues e4 (0.0% score)
- 1.d4 — 36% of White games, 60.0% score
- …Nf6 (60% of these games) — Kowalski usually continues Bg5 (50.0% score)
- …g6 (20% of these games) — Kowalski usually continues c4 (0.0% score)
- …e6 (20% of these games) — Kowalski usually continues e4 (100.0% score)
As Black against 1.e4 (11 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 4 | 36.4% | 37.5% |
| c5 | 4 | 36.4% | 25.0% |
| c6 | 3 | 27.3% | 0.0% |
As Black against 1.d4 (2 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 2 | 100.0% | 0.0% |
Maciej Kowalski's chess games
All 30 games by Maciej Kowalski in the Chess.ceo database (May 2023 - 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: 9 wins, 6 draws, 15 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A05 | Réti Opening | 3 | 2/0/1 | 66.7% |
| A45 | Trompowsky Attack | 2 | 1/0/1 | 50.0% |
| C15 | French: Winawer Variation | 1 | 1/0/0 | 100.0% |
| A05 | King's Indian Attack | 1 | 0/1/0 | 0.0% |
| E71 | King's Indian Defense | 1 | 1/0/0 | 100.0% |
| B10 | Caro-Kann: Two Knights Variation | 1 | 1/0/0 | 100.0% |
| B27 | Sicilian: Hyperaccelerated Dragon | 1 | 0/0/1 | 0.0% |
| B92 | Sicilian: Najdorf | 1 | 1/0/0 | 100.0% |
| B33 | Sicilian: Sveshnikov | 1 | 0/0/1 | 0.0% |
| A42 | Modern Defense | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B28 | Sicilian | 4 | 0/2/2 | 0.0% |
| B01 | Scandinavian Defense: Main Line | 3 | 0/1/2 | 0.0% |
| A50 | Indian Defense | 2 | 0/0/2 | 0.0% |
| B15 | Caro-Kann: Main Line | 1 | 0/0/1 | 0.0% |
| A13 | English Opening | 1 | 0/1/0 | 0.0% |
| D00 | Blackmar-Diemer Gambit | 1 | 1/0/0 | 100.0% |
| D78 | Nimzovich-Larsen attack | 1 | 0/0/1 | 0.0% |
| A06 | Réti Opening | 1 | 0/1/0 | 0.0% |
| B13 | Caro-Kann: Exchange Variation | 1 | 0/0/1 | 0.0% |
| B10 | Caro-Kann | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| May 2026 | Piotr Panasiuk | 1,870 | Drużynowe Mistrzostwa Polski Juniorów - II Liga | Mecze 1-10 | A45 |
| Aug 2025 | Hubert Bogenryter | 1,864 | Adolf Anderssen Mem | E71 |
| May 2026 | Hubert Spytek | 1,861 | Drużynowe Mistrzostwa Polski Juniorów - II Liga | Mecze 1-10 | A00 |
| Aug 2024 | Quoc Anh Nguyen Doan | 1,705 | Wroclaw Anderssen Memorial Open | B92 |
| Aug 2025 | Kacper Kruszelnicki | 1,675 | Adolf Anderssen Mem | A05 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Adolf Anderssen Mem | 2025 | 9 | 5 | 1,804 |
| Drużynowe Mistrzostwa Polski Juniorów - II Liga | Mecze 1-10 | 2026 | 6 | 3 | 1,905 |
| Wroclaw Anderssen Memorial Open | 2024 | 6 | 2 | 1,641 |
| 25th European Youth Rapid & Blitz Chess Championship | Blitz | O18 | 2026 | 4 | 0 | 1,874 |
| Drużynowe Mistrzostwa Polski Juniorów - II Liga | Mecze 11-18 | 2026 | 3 | 1.5 | 1,815 |
| Polish Youth Rapid & Blitz Championships 2026 | Blitz | O18 | 2026 | 2 | 0.5 | 1,957 |
Interactive opening tree from all 30 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Maciej Kowalski's chess games?
Chess.ceo has 30 of Maciej Kowalski's games from May 2023 to Jul 2026, free to browse and replay move by move on the interactive board — no signup needed. The preparation view groups all of them into an opening tree so you can see every line Maciej Kowalski has played.
What does Maciej Kowalski play on the first move as White?
Across 14 games with White in our database, Maciej Kowalski opens with 1.Nf3 (43% of games), 1.d4 (36% of games), 1.e4 (14% of games). Against 1.e4 as Black, Maciej Kowalski answers 1...d5 (36% of games), 1...c5 (36% of games), 1...c6 (27% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Maciej Kowalski play as White?
As White, Maciej Kowalski's most-played openings in our database are: Réti Opening (3 games, 66.7% win rate); Trompowsky Attack (2 games, 50.0% win rate); French: Winawer Variation (1 games, 100.0% win rate). The full breakdown of 14 games with White is in the table above.
What openings does Maciej Kowalski play as Black?
As Black, Maciej Kowalski most often plays: Sicilian (4 games, 0.0% win rate); Scandinavian Defense: Main Line (3 games, 0.0% win rate); Indian Defense (2 games, 0.0% win rate). See the table above for the top ten Black openings across 16 games.
What is Maciej Kowalski's FIDE rating?
Maciej Kowalski is currently rated 1,942 in classical chess, 1,908 in rapid and 1,934 in blitz. Peak classical rating: 1,955 (May 2026).
How many games has Maciej Kowalski played?
Our database contains 30 games by Maciej Kowalski, covering May 2023 to Jul 2026. Overall record: 9 wins, 6 draws, 15 losses (30.0% win rate).
How do I prepare against Maciej Kowalski?
Open Maciej Kowalski's player page on Chess.ceo and start a free preparation session: it scans all 30 of their games, shows their repertoire move by move in an opening tree, and highlights the lines where they score worst — so you know exactly where to aim. No signup required to explore.