Prepare against Kacper Grunas
Poland · World #56,741 classical · FIDE ID 91149274
Our database contains 33 games by Kacper Grunas, covering Jul 2024 to Jul 2026. Below you'll find Kacper Grunas's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Kacper Grunas 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 | 1,868 | 1,868 | Jul 2026 |
| Rapid | 1,851 | 1,851 | Jul 2026 |
| Blitz | 1,809 | 1,810 | May 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 33 | 12 | 5 | 15 | 36.4% |
| As White | 15 | 5 | 4 | 6 | 33.3% |
| As Black | 18 | 7 | 1 | 9 | 38.9% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Kacper Grunas's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Kacper Grunas's side.
First moves as White (15 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 15 | 100.0% | 46.7% |
Main lines as White
- 1.e4 — 100% of White games, 46.7% score
- …c5 (67% of these games) — Grunas usually continues Nf3 (35.0% score)
- …e5 (13% of these games) — Grunas usually continues Nf3 (100.0% score)
- …e6 (7% of these games) — Grunas usually continues d4 (50.0% score)
As Black against 1.e4 (15 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e6 | 8 | 53.3% | 56.3% |
| c5 | 7 | 46.7% | 42.9% |
As Black against 1.d4 (1 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d5 | 1 | 100.0% | 50.0% |
Kacper Grunas's chess games
All 33 games by Kacper Grunas in the Chess.ceo database (Jul 2024 - 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: 12 wins, 5 draws, 15 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B56 | Sicilian | 7 | 1/3/3 | 14.3% |
| C50 | Italian Game | 1 | 1/0/0 | 100.0% |
| E90 | King's Indian Defense: Orthodox Variation | 1 | 0/0/1 | 0.0% |
| C77 | Ruy Lopez: Morphy Defense | 1 | 1/0/0 | 100.0% |
| B01 | Scandinavian Defense: Main Line | 1 | 1/0/0 | 100.0% |
| B45 | Sicilian: Four Knights | 1 | 1/0/0 | 100.0% |
| B35 | Sicilian: Hyperaccelerated Dragon | 1 | 0/0/1 | 0.0% |
| C02 | French: Advance Variation | 1 | 0/1/0 | 0.0% |
| B44 | Sicilian: Taimanov | 1 | 0/0/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C05 | French: Tarrasch Variation | 3 | 1/1/1 | 33.3% |
| B40 | Sicilian | 2 | 0/0/2 | 0.0% |
| C00 | French Defense | 2 | 1/0/1 | 50.0% |
| B40 | Sicilian: Four Knights | 2 | 2/0/0 | 100.0% |
| C11 | French: Classical Variation | 2 | 2/0/0 | 100.0% |
| B21 | Sicilian: Smith-Morra Gambit | 1 | 0/0/1 | 0.0% |
| E09 | Catalan | 1 | 0/0/0 | 0.0% |
| B33 | Sicilian: Sveshnikov | 1 | 0/0/1 | 0.0% |
| C00 | English Opening | 1 | 0/0/1 | 0.0% |
| A29 | English Opening: Reverse Sicilian | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 2026 | Milosz Zajadlak | 1,970 | Polish Youth Rapid & Blitz Championships 2026 | Rapid | O12 | B45 |
| Jul 2026 | Nikodem Mrozowski | 1,921 | Polish Youth Rapid & Blitz Championships 2026 | Rapid | O12 | B56 |
| Jul 2026 | Tobiasz Malinowski | 1,823 | Polish Youth Rapid & Blitz Championships 2026 | Rapid | O12 | B01 |
| Jul 2026 | Wieslaw Pilat | 1,811 | XXII Baltic Pearl Chess Festival 2026 - Group A 1-20 | C77 |
| Jul 2026 | Przemyslaw Ostrega | 1,801 | XXII Baltic Pearl Chess Festival 2026 - Group A 1-20 | B45 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Adolf Anderssen Mem | 2025 | 8 | 3 | 1,771 |
| Polish Youth Rapid & Blitz Championships 2026 | Rapid | O12 | 2026 | 8 | 5.5 | 2,083 |
| Polish Youth Rapid & Blitz Championships 2026 | | Blitz | O12 | 2026 | 6 | 3 | 1,750 |
| XXII Baltic Pearl Chess Festival 2026 - Group A 1-20 | 2026 | 6 | 2 | 1,814 |
| XXII Baltic Pearl Chess Festival 2026 - Group A 21-27 | 2026 | 3 | 1 | 1,611 |
| Polish Youth Rapid & Blitz Championships 2026 | Blitz | O14 | 2026 | 1 | 0 | 1,297 |
| ch-POL Rapid 2025 | 2025 | 1 | 0 | 1,704 |
Interactive opening tree from all 33 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Kacper Grunas's chess games?
Chess.ceo has 33 of Kacper Grunas's games from Jul 2024 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 Kacper Grunas has played.
What does Kacper Grunas play on the first move as White?
Across 15 games with White in our database, Kacper Grunas opens with 1.e4 (100% of games). Against 1.e4 as Black, Kacper Grunas answers 1...e6 (53% of games), 1...c5 (47% of games). Against 1.d4: 1...d5 (100% of games).
What openings does Kacper Grunas play as White?
As White, Kacper Grunas's most-played openings in our database are: Sicilian (7 games, 14.3% win rate); Italian Game (1 games, 100.0% win rate); King's Indian Defense: Orthodox Variation (1 games, 0.0% win rate). The full breakdown of 15 games with White is in the table above.
What openings does Kacper Grunas play as Black?
As Black, Kacper Grunas most often plays: French: Tarrasch Variation (3 games, 33.3% win rate); Sicilian (2 games, 0.0% win rate); French Defense (2 games, 50.0% win rate). See the table above for the top ten Black openings across 18 games.
What is Kacper Grunas's FIDE rating?
Kacper Grunas is currently rated 1,868 in classical chess, 1,851 in rapid and 1,809 in blitz. Peak classical rating: 1,868 (Jul 2026).
How many games has Kacper Grunas played?
Our database contains 33 games by Kacper Grunas, covering Jul 2024 to Jul 2026. Overall record: 12 wins, 5 draws, 15 losses (36.4% win rate).
How do I prepare against Kacper Grunas?
Open Kacper Grunas's player page on Chess.ceo and start a free preparation session: it scans all 33 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.