Prepare against Maciej Koziej
FM · Poland · World #32,595 classical · FIDE ID 1139347
Our database contains 239 games by Maciej Koziej, covering Oct 2005 to Jul 2026. Below you'll find Maciej Koziej's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Maciej Koziej 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 | 1,971 | 2,075 | Jul 2009 |
| Rapid | 1,880 | 2,050 | Sep 2014 |
| Blitz | 1,968 | 2,038 | Aug 2014 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 239 | 103 | 58 | 78 | 43.1% |
| As White | 121 | 56 | 29 | 36 | 46.3% |
| As Black | 118 | 47 | 29 | 42 | 39.8% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Maciej Koziej's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Maciej Koziej's side.
First moves as White (121 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 75 | 62.0% | 52.7% |
| d4 | 38 | 31.4% | 67.1% |
| Nf3 | 4 | 3.3% | 62.5% |
| c4 | 3 | 2.5% | 66.7% |
| f4 | 1 | 0.8% | 100.0% |
Main lines as White
- 1.e4 — 62% of White games, 52.7% score
- …c5 (52% of these games) — Koziej usually continues Nf3 (56.4% score)
- …e5 (21% of these games) — Koziej usually continues Nf3 (56.3% score)
- …c6 (9% of these games) — Koziej usually continues d4 (42.9% score)
- 1.d4 — 31% of White games, 67.1% score
- …d5 (34% of these games) — Koziej usually continues c4 (62.5% score)
- …Nf6 (32% of these games) — Koziej usually continues c4 (65.0% score)
- …d6 (11% of these games) — Koziej usually continues e4 (50.0% score)
As Black against 1.e4 (61 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 48 | 78.7% | 56.3% |
| Nf6 | 6 | 9.8% | 33.3% |
| e5 | 5 | 8.2% | 60.0% |
| d5 | 1 | 1.6% | 100.0% |
| d6 | 1 | 1.6% | 0.0% |
As Black against 1.d4 (44 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 18 | 40.9% | 41.7% |
| f5 | 13 | 29.5% | 38.5% |
| Nf6 | 12 | 27.3% | 66.7% |
Maciej Koziej's chess games
All 239 games by Maciej Koziej in the Chess.ceo database (Oct 2005 - 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: 103 wins, 58 draws, 78 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B42 | Sicilian | 16 | 7/4/5 | 43.8% |
| B93 | Sicilian: Najdorf | 10 | 5/2/3 | 50.0% |
| B33 | Sicilian: Sveshnikov | 8 | 2/3/3 | 25.0% |
| C47 | Four Knights Game | 8 | 5/0/3 | 62.5% |
| D00 | Queen's Pawn Game | 5 | 3/2/0 | 60.0% |
| B09 | Pirc Defense | 5 | 2/2/1 | 40.0% |
| D35 | Queen's Gambit Declined | 4 | 1/3/0 | 25.0% |
| E76 | King's Indian Defense: Four Pawns Attack | 4 | 2/0/2 | 50.0% |
| A44 | Benoni Defense | 4 | 3/1/0 | 75.0% |
| C05 | French: Tarrasch Variation | 4 | 2/1/1 | 50.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B32 | Sicilian | 38 | 17/12/9 | 44.7% |
| A90 | Dutch Defense | 15 | 5/2/8 | 33.3% |
| D07 | Queen's Gambit | 10 | 3/3/4 | 30.0% |
| D02 | Queen's Pawn Game | 7 | 2/1/4 | 28.6% |
| D85 | Grünfeld Defense | 6 | 3/2/1 | 50.0% |
| B02 | Alekhine Defense | 5 | 2/0/3 | 40.0% |
| A46 | Indian Defense | 4 | 2/2/0 | 50.0% |
| B22 | Sicilian: Alapin | 4 | 1/0/3 | 25.0% |
| A17 | English Opening | 2 | 2/0/0 | 100.0% |
| E05 | Catalan | 2 | 1/0/1 | 50.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Mar 2011 | Michal Matuszewski | 2,384 | ch-POL U18 | B81 |
| Jan 2010 | Andrzej Palosz | 2,167 | chT-POL Region | B42 |
| Aug 2006 | Tomasz Kubit | 2,163 | 11th Rewal Open | B32 |
| Mar 2011 | Michal Solnicki | 2,126 | ch-POL U18 | D77 |
| Aug 2009 | Piotr Ciechonski | 2,122 | 20th Kochan Memorial Open A | B35 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| ch-POL U16 | 2009 | 22 | 10.5 | 1,937 |
| POL-chT U19 2nd League | 2010 | 22 | 13.5 | 2,064 |
| ch-POL U18 | 2011 | 19 | 8.5 | 2,110 |
| 11th Rewal Open | 2006 | 11 | 5 | 2,051 |
| ch-POL U12 | 2003 | 11 | 1.5 | – |
| ch-POL U14 | 2007 | 10 | 5 | 1,900 |
| 19th Kochan Memorial Open | 2008 | 9 | 8 | 2,134 |
| 15th Rewal Open B | 2010 | 9 | 7 | 2,159 |
Interactive opening tree from all 239 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Maciej Koziej's chess games?
239 games by Maciej Koziej, from Oct 2005 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 Maciej Koziej has played.
What does Maciej Koziej play on the first move as White?
Across 121 games with White in our database, Maciej Koziej opens with 1.e4 (62% of games), 1.d4 (31% of games), 1.Nf3 (3% of games). Against 1.e4 as Black, Maciej Koziej answers 1...c5 (79% of games), 1...Nf6 (10% of games), 1...e5 (8% of games). Against 1.d4: 1...d5 (41% of games), 1...f5 (30% of games), 1...Nf6 (27% of games).
What openings does Maciej Koziej play as White?
As White, Maciej Koziej's most-played openings in our database are: Sicilian (16 games, 43.8% win rate); Sicilian: Najdorf (10 games, 50.0% win rate); Sicilian: Sveshnikov (8 games, 25.0% win rate). The full breakdown of 121 games with White is in the table above.
What openings does Maciej Koziej play as Black?
As Black, Maciej Koziej most often plays: Sicilian (38 games, 44.7% win rate); Dutch Defense (15 games, 33.3% win rate); Queen's Gambit (10 games, 30.0% win rate). See the table above for the top ten Black openings across 118 games.
What is Maciej Koziej's FIDE rating?
Maciej Koziej is currently rated 1,971 in classical chess, 1,880 in rapid and 1,968 in blitz. Peak classical rating: 2,075 (Jul 2009).
How many games has Maciej Koziej played?
Our database contains 239 games by Maciej Koziej, covering Oct 2005 to Jul 2026. Overall record: 103 wins, 58 draws, 78 losses (43.1% win rate).
How do I prepare against Maciej Koziej?
239 games by Maciej Koziej 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.