Prepare against Kosma Pacan-Milej
FM · Poland · World #1,616 classical · FIDE ID 21800537
When preparing against Kosma Pacan-Milej, expect 1.d4 in 88% of White games. Against 1.e4 the reply is 1...c5 (62% of games); against 1.d4, 1...Nf6 (83%). Lowest win rate among frequent openings: Queen's Indian Defense as White, 23.5% over 17 games.
Our database contains 762 games by Kosma Pacan-Milej, covering Oct 2012 to Sep 2026. Below you'll find Kosma Pacan-Milej's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Kosma Pacan-Milej 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 | 2,389 | 2,438 | Feb 2024 |
| Rapid | 2,201 | 2,319 | Dec 2022 |
| Blitz | 2,252 | 2,305 | Oct 2024 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 762 | 309 | 215 | 238 | 40.6% |
| As White | 382 | 171 | 101 | 110 | 44.8% |
| As Black | 380 | 138 | 114 | 128 | 36.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Kosma Pacan-Milej's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Kosma Pacan-Milej's side.
First moves as White (382 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 338 | 88.5% | 58.1% |
| e4 | 21 | 5.5% | 50.0% |
| Nf3 | 13 | 3.4% | 76.9% |
| c4 | 9 | 2.4% | 50.0% |
| f4 | 1 | 0.3% | 0.0% |
Main lines as White
- 1.d4 — 88% of White games, 58.1% score
- …Nf6 (60% of these games) — Pacan-Milej usually continues c4 (56.9% score)
- …d5 (25% of these games) — Pacan-Milej usually continues c4 (65.4% score)
- …d6 (4% of these games) — Pacan-Milej usually continues c4 (50.0% score)
- 1.e4 — 5% of White games, 50.0% score
- …c5 (48% of these games) — Pacan-Milej usually continues Nf3 (55.0% score)
- …c6 (14% of these games) — Pacan-Milej usually continues c4 (0.0% score)
- …e6 (14% of these games) — Pacan-Milej usually continues d4 (66.7% score)
As Black against 1.e4 (168 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 104 | 61.9% | 57.2% |
| c6 | 54 | 32.1% | 52.8% |
| d6 | 6 | 3.6% | 33.3% |
| e6 | 3 | 1.8% | 16.7% |
| e5 | 1 | 0.6% | 0.0% |
As Black against 1.d4 (130 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 108 | 83.1% | 51.9% |
| d5 | 15 | 11.5% | 43.3% |
| f5 | 6 | 4.6% | 83.3% |
| d6 | 1 | 0.8% | 50.0% |
Kosma Pacan-Milej's chess games
All 762 games by Kosma Pacan-Milej in the Chess.ceo database (Oct 2012 - 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: 309 wins, 215 draws, 238 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D36 | Indian Defense | 56 | 24/15/17 | 42.9% |
| D45 | Slav Defense | 38 | 19/12/7 | 50.0% |
| E71 | King's Indian Defense | 33 | 15/9/9 | 45.5% |
| E49 | Nimzo-Indian: Rubinstein System | 29 | 14/6/9 | 48.3% |
| A70 | Benoni Defense | 26 | 11/7/8 | 42.3% |
| E15 | Queen's Indian Defense | 17 | 4/9/4 | 23.5% |
| A42 | Modern Defense | 15 | 7/2/6 | 46.7% |
| D31 | Semi-Slav Defense | 11 | 5/1/5 | 45.5% |
| E01 | Catalan | 9 | 4/5/0 | 44.4% |
| E32 | Nimzo-Indian: Classical Variation | 8 | 2/5/1 | 25.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B90 | Sicilian: Najdorf | 35 | 19/8/8 | 54.3% |
| A48 | Indian Defense | 28 | 12/5/11 | 42.9% |
| B32 | Sicilian | 24 | 9/8/7 | 37.5% |
| E62 | English Opening | 22 | 7/8/7 | 31.8% |
| A57 | Benoni Defense | 18 | 8/3/7 | 44.4% |
| B12 | Caro-Kann: Advance Variation | 17 | 7/5/5 | 41.2% |
| E70 | King's Indian Defense | 15 | 4/8/3 | 26.7% |
| D11 | Slav Defense | 13 | 1/8/4 | 7.7% |
| B31 | Sicilian: Rossolimo | 12 | 5/4/3 | 41.7% |
| E94 | King's Indian Defense: Orthodox Variation | 11 | 5/0/6 | 45.5% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Sep 2020 | Sanan Sjugirov | 2,675 | Titled Tue | D20 |
| May 2023 | Jonas Buhl Bjerre | 2,602 | Titled Tue Early | A05 |
| Oct 2022 | David Paravyan | 2,589 | Titled Tue Late | B12 |
| Mar 2021 | Dennis Wagner | 2,581 | Titled Tue | D38 |
| Feb 2021 | Denis Kadric | 2,577 | Titled Tue | C41 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Titled Tuesday | 2023 | 162 | 89 | 2,379 |
| POL-chT 1st League | 2024 | 50 | 23.5 | 2,346 |
| ch-POL U20 | 2021 | 27 | 18 | 2,411 |
| chT-POL U20 | 2018 | 27 | 17.5 | 2,222 |
| Warsaw Maciei Memorial | 2023 | 27 | 17.5 | 2,324 |
| Ustron Open A | 2022 | 25 | 14 | 2,360 |
| ch-POL U18 | 2020 | 17 | 10.5 | 2,263 |
| ch-POL Universities | 2024 | 13 | 7.5 | 2,035 |
Interactive opening tree from all 762 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Kosma Pacan-Milej's chess games?
762 games by Kosma Pacan-Milej, from Oct 2012 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 Kosma Pacan-Milej has played.
What does Kosma Pacan-Milej play on the first move as White?
Across 382 games with White in our database, Kosma Pacan-Milej opens with 1.d4 (88% of games), 1.e4 (5% of games), 1.Nf3 (3% of games). Against 1.e4 as Black, Kosma Pacan-Milej answers 1...c5 (62% of games), 1...c6 (32% of games), 1...d6 (4% of games). Against 1.d4: 1...Nf6 (83% of games), 1...d5 (12% of games), 1...f5 (5% of games).
What openings does Kosma Pacan-Milej play as White?
As White, Kosma Pacan-Milej's most-played openings in our database are: Indian Defense (56 games, 42.9% win rate); Slav Defense (38 games, 50.0% win rate); King's Indian Defense (33 games, 45.5% win rate). The full breakdown of 382 games with White is in the table above.
What openings does Kosma Pacan-Milej play as Black?
As Black, Kosma Pacan-Milej most often plays: Sicilian: Najdorf (35 games, 54.3% win rate); Indian Defense (28 games, 42.9% win rate); Sicilian (24 games, 37.5% win rate). See the table above for the top ten Black openings across 380 games.
What is Kosma Pacan-Milej's FIDE rating?
Kosma Pacan-Milej is currently rated 2,389 in classical chess, 2,201 in rapid and 2,252 in blitz. Peak classical rating: 2,438 (Feb 2024).
How many games has Kosma Pacan-Milej played?
Our database contains 762 games by Kosma Pacan-Milej, covering Oct 2012 to Sep 2026. Overall record: 309 wins, 215 draws, 238 losses (40.6% win rate).
How do I prepare against Kosma Pacan-Milej?
762 games by Kosma Pacan-Milej 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.