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Kacper Piorun vs Jakub Kosakowski

GM Kacper Piorun (2519) · GM Jakub Kosakowski (2543)

5
Piorun wins
12
draws
12
Kosakowski wins
29
games

Kacper Piorun and Jakub Kosakowski have played 29 recorded games against each other, the first in Oct 2023 and the most recent in Sep 2025. Piorun leads 5 wins to 12 - trailing overall, with 12 draws (59% of the games were decisive). Their most common battleground is the Réti Opening (3 games). The average game between them lasted 43 moves.

Results by color

SplitGamesPiorunDrawsKosakowski
Piorun with White14347
Kosakowski with White15285

Results by time format

FormatGamesPiorunDrawsKosakowski
Blitz255812
Classical2020
Rapid2020

Openings in their games

ECOOpeningGamesPiorunDrawsKosakowski
A34Réti Opening3012
B30Sicilian: Rossolimo2020
C01French Defense2011
C16French: Winawer Variation2020
D38Queen's Gambit Declined: Ragozin Defense2101
B15Caro-Kann: Main Line2011
B11Caro-Kann: Two Knights Variation1001
A80Dutch Defense1010

All games

DateWhiteBlackResultOpeningEvent
Sep 2025Jakub KosakowskiK Piorun1/2-1/2Scotch GameSzansa Open Rapid
May 2025K PiorunJakub Kosakowski1/2-1/2Dutch Defense82nd ch-POL
Jul 2024Jakub KosakowskiKacper Piorun0-1French: Tarrasch VariationWarsaw Maciei Mem Blitz
May 2024Kacper PiorunJakub Kosakowski1/2-1/2English Opening: Reverse Sicilianch-POL 81st
Jan 2024Kacper PiorunJakub Kosakowski1-0SicilianSpeed Chess Poland
Jan 2024Kacper PiorunJakub Kosakowski1/2-1/2Caro-Kann: Main LineSpeed Chess Poland
Jan 2024Jakub KosakowskiKacper Piorun1-0Vienna GameSpeed Chess Poland
Jan 2024Kacper PiorunJakub Kosakowski0-1Caro-Kann: Two Knights VariationSpeed Chess Poland
Jan 2024Kacper PiorunJakub Kosakowski1/2-1/2Réti OpeningSpeed Chess Poland
Jan 2024Kacper PiorunJakub Kosakowski0-1Réti Openingchess.com Speed Poland
Jan 2024Jakub KosakowskiKacper Piorun1/2-1/2French DefenseSpeed Chess Poland
Jan 2024Kacper PiorunJakub Kosakowski1-0Queen's Gambit Declined: Ragozin DefenseSpeed Chess Poland
Jan 2024Kacper PiorunJakub Kosakowski0-1Caro-Kann: Main LineSpeed Chess Poland
Jan 2024Kacper PiorunJakub Kosakowski0-1Réti OpeningSpeed Chess Poland
Jan 2024Jakub KosakowskiKacper Piorun1/2-1/2Sicilian: RossolimoSpeed Chess Poland
Jan 2024Kacper PiorunJakub Kosakowski1-0Réti OpeningSpeed Chess Poland
Jan 2024Jakub KosakowskiKacper Piorun0-1Bishop's OpeningSpeed Chess Poland
Jan 2024Jakub KosakowskiKacper Piorun1/2-1/2Bishop's OpeningSpeed Chess Poland
Jan 2024Jakub KosakowskiKacper Piorun1/2-1/2French: Winawer Variationchess.com Speed Poland
Jan 2024Kacper PiorunJakub Kosakowski0-1Queen's Gambit Declined: Ragozin DefenseSpeed Chess Poland
Jan 2024Jakub KosakowskiKacper Piorun1/2-1/2Sicilian: RossolimoSpeed Chess Poland
Jan 2024Jakub KosakowskiKacper Piorun1-0Ruy Lopez: FianchettoSpeed Chess Poland
Jan 2024Jakub KosakowskiKacper Piorun1-0Modern DefenseSpeed Chess Poland
Jan 2024Kacper PiorunJakub Kosakowski0-1Colle SystemSpeed Chess Poland
Jan 2024Jakub KosakowskiKacper Piorun1-0French DefenseSpeed Chess Poland
Jan 2024Jakub KosakowskiKacper Piorun1-0Modern DefenseSpeed Chess Poland
Jan 2024Kacper PiorunJakub Kosakowski0-1Réti OpeningSpeed Chess Poland
Jan 2024Jakub KosakowskiKacper Piorun1/2-1/2French: Winawer VariationSpeed Chess Poland
Oct 2023Jakub KosakowskiKacper Piorun1/2-1/2French: Winawer Variationch-POL Rapid
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Frequently asked questions

What is the head-to-head score between Kacper Piorun and Jakub Kosakowski?

In 29 recorded games, Kacper Piorun has 5 wins, Jakub Kosakowski has 12 wins, and they have drawn 12 times.

How many times have Kacper Piorun and Jakub Kosakowski played each other?

Our database records 29 games between them, from Oct 2023 to Sep 2025.

What openings do Kacper Piorun and Jakub Kosakowski play against each other?

The most common opening in their games is the Réti Opening (3 games), followed by the Sicilian: Rossolimo (2). The full opening breakdown and every game are on this page.