Prepare against Karol Leszczewicz
Poland · World #37,366 classical · FIDE ID 21004510
When preparing against Karol Leszczewicz, expect 1.d4 in 67% of White games. Against 1.e4 the reply is 1...c5 (50% of games); against 1.d4, 1...Nf6 (100%).
Our database contains 114 games by Karol Leszczewicz, covering Mar 2018 to Sep 2026. Below you'll find Karol Leszczewicz's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Karol Leszczewicz 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 | 1,948 | 2,063 | Sep 2025 |
| Rapid | 1,955 | 1,955 | Sep 2026 |
| Blitz | 1,893 | 1,914 | Aug 2024 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 114 | 29 | 35 | 50 | 25.4% |
| As White | 54 | 19 | 15 | 20 | 35.2% |
| As Black | 60 | 10 | 20 | 30 | 16.7% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Karol Leszczewicz's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Karol Leszczewicz's side.
First moves as White (54 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 36 | 66.7% | 48.6% |
| e4 | 13 | 24.1% | 53.8% |
| Nf3 | 3 | 5.6% | 33.3% |
| c4 | 2 | 3.7% | 50.0% |
Main lines as White
- 1.d4 — 67% of White games, 48.6% score
- …Nf6 (56% of these games) — Leszczewicz usually continues c4 (35.0% score)
- …d5 (33% of these games) — Leszczewicz usually continues c4 (56.3% score)
- …g6 (6% of these games) — Leszczewicz usually continues e4 (75.0% score)
- 1.e4 — 24% of White games, 53.8% score
- …c5 (54% of these games) — Leszczewicz usually continues Nf3 (41.7% score)
- …c6 (15% of these games) — Leszczewicz usually continues d4 (0.0% score)
- …e5 (15% of these games) — Leszczewicz usually continues Nf3 (100.0% score)
As Black against 1.e4 (24 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 12 | 50.0% | 33.3% |
| Nf6 | 8 | 33.3% | 50.0% |
| e5 | 2 | 8.3% | 0.0% |
| c6 | 2 | 8.3% | 0.0% |
As Black against 1.d4 (17 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 17 | 100.0% | 23.5% |
Karol Leszczewicz's chess games
All 114 games by Karol Leszczewicz in the Chess.ceo database (Mar 2018 - 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: 29 wins, 35 draws, 50 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A46 | Indian Defense | 11 | 1/4/6 | 9.1% |
| D40 | Queen's Gambit Declined | 4 | 3/1/0 | 75.0% |
| D03 | Torre Attack | 4 | 1/1/2 | 25.0% |
| D02 | Queen's Pawn Game | 3 | 2/1/0 | 66.7% |
| A85 | Rat Defense | 2 | 1/0/1 | 50.0% |
| B90 | Sicilian: Najdorf | 2 | 0/2/0 | 0.0% |
| D43 | Slav Defense | 2 | 0/1/1 | 0.0% |
| E10 | Queen's Indian Defense | 2 | 2/0/0 | 100.0% |
| B06 | Modern Defense | 2 | 1/1/0 | 50.0% |
| A73 | Benoni Defense | 2 | 0/1/1 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| A58 | Benoni Defense | 11 | 2/2/7 | 18.2% |
| B03 | Alekhine Defense | 8 | 3/2/3 | 37.5% |
| B28 | Sicilian | 6 | 0/5/1 | 0.0% |
| A10 | English Opening | 5 | 0/3/2 | 0.0% |
| A05 | Réti Opening | 4 | 1/1/2 | 25.0% |
| B33 | Sicilian: Sveshnikov | 3 | 1/1/1 | 33.3% |
| A03 | Bird's opening | 2 | 1/1/0 | 50.0% |
| C42 | Petrov's Defense | 2 | 0/0/2 | 0.0% |
| A46 | Indian Defense | 2 | 0/1/1 | 0.0% |
| B12 | Caro-Kann: Advance Variation | 2 | 0/0/2 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Sep 2023 | Patryk Chylewski | 2,284 | Warsaw Szansa Rapid Open | A46 |
| Jul 2024 | Kacper Majek | 2,166 | Warsaw Maciei Mem Blitz | D02 |
| Jul 2024 | Marcin Chmiel | 2,161 | Warsaw Maciei Mem Blitz | A29 |
| Sep 2026 | Ryszard Sokolowski | 2,101 | Polish Team Championship 2026 Division 1 (Drużynowe Mistrzostwa Polski - I Liga) | E10 |
| Aug 2025 | Borys Witczak | 2,101 | 61st Rubinstein Mem Open | A61 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 266th Warsaw YMCA Autumn A | 2022 | 12 | 2.5 | 1,509 |
| TCh-POL 1st League | 2025 | 9 | 2 | 1,884 |
| 61st Rubinstein Mem Open | 2025 | 9 | 4 | 2,065 |
| Wroclaw Open B | 2024 | 9 | 3.5 | 1,811 |
| Semifinals ch-POL | 2025 | 9 | 4.5 | 2,073 |
| ch-POL U20 | 2025 | 9 | 4.5 | 1,858 |
| 293rd YMCA Autumn B | 2024 | 9 | 5.5 | 1,849 |
| chT-POL U20 2nd League | 2020 | 9 | 4.5 | 1,319 |
Interactive opening tree from all 114 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Karol Leszczewicz's chess games?
114 games by Karol Leszczewicz, from Mar 2018 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 Karol Leszczewicz has played.
What does Karol Leszczewicz play on the first move as White?
Across 54 games with White in our database, Karol Leszczewicz opens with 1.d4 (67% of games), 1.e4 (24% of games), 1.Nf3 (6% of games). Against 1.e4 as Black, Karol Leszczewicz answers 1...c5 (50% of games), 1...Nf6 (33% of games), 1...e5 (8% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does Karol Leszczewicz play as White?
As White, Karol Leszczewicz's most-played openings in our database are: Indian Defense (11 games, 9.1% win rate); Queen's Gambit Declined (4 games, 75.0% win rate); Torre Attack (4 games, 25.0% win rate). The full breakdown of 54 games with White is in the table above.
What openings does Karol Leszczewicz play as Black?
As Black, Karol Leszczewicz most often plays: Benoni Defense (11 games, 18.2% win rate); Alekhine Defense (8 games, 37.5% win rate); Sicilian (6 games, 0.0% win rate). See the table above for the top ten Black openings across 60 games.
What is Karol Leszczewicz's FIDE rating?
Karol Leszczewicz is currently rated 1,948 in classical chess, 1,955 in rapid and 1,893 in blitz. Peak classical rating: 2,063 (Sep 2025).
How many games has Karol Leszczewicz played?
Our database contains 114 games by Karol Leszczewicz, covering Mar 2018 to Sep 2026. Overall record: 29 wins, 35 draws, 50 losses (25.4% win rate).
How do I prepare against Karol Leszczewicz?
114 games by Karol Leszczewicz 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.