ChessmooseOpponent prep

Jakub Kostka

CZE · FIDE ID 23724196 · 8 tournament games since 2026
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Standard
1753
#3655 in CZE (active)
Rapid
1782
#2450 in CZE (active)
Blitz
–
Unrated
Score
25%
1 W · 2 D · 5 L
Opp. avg
1466
Last 8 games
Last game
2026-04-19
Columbus Mistrzostwa Polski Amatorów 2026 | U1600

Prep summary

Based on 8 over-the-board games (8 classical). 4 with White (13%), 4 with Black (38%).

Openings as White

First move

1.d4413%

Most played

OpeningGamesScore
Dutch Defense150%
Queen's Pawn Game: Accelerated London System, Steinitz Countergambit10%
Queen's Pawn Game: Accelerated London System10%
Indian Defense: Accelerated London System10%

Openings as Black

Against 1.e4 (3 games)

1...e6 French Defense333%

Against 1.d4 (1 game)

1...f5 Dutch Defense150%

Most played

OpeningGamesScore
French Defense: Schlechter Variation10%
French Defense: Classical Variation, Swiss Variation1100%
French Defense: Exchange Variation10%
Dutch Defense: Alekhine Variation150%

Recent games

DateOpponent and eventResult
2026-04-19Patryk Szadkowski (1536)
Columbus Mistrzostwa Polski Amatorów 2026 | U1600 · classical
L
2026-04-18Damian Wisniewski
Columbus Mistrzostwa Polski Amatorów 2026 | U1600 · classical
½
2026-04-17Antoni Wolanski
Columbus Mistrzostwa Polski Amatorów 2026 | U1600 · classical
W
2026-04-14Jan Piasta
Columbus Mistrzostwa Polski Amatorów 2026 | U1600 · classical
L
2026-04-14Blazej Wiesiolek (1411)
Columbus Mistrzostwa Polski Amatorów 2026 | U1600 · classical
L
2026-04-13Patryk Malyszek
Columbus Mistrzostwa Polski Amatorów 2026 | U1600 · classical
L
2026-04-12Maria Swiatek (1407)
Columbus Mistrzostwa Polski Amatorów 2026 | U1600 · classical
½
2026-04-11Weronika Wawrzyniak (1508)
Columbus Mistrzostwa Polski Amatorów 2026 | U1600 · classical
L

Data: FIDE rating list (October 2026 list; national ranks count active players) and tournament games broadcast on Lichess since 2020 (open data, CC0). Results are matched to FIDE players by name or FIDE ID and may be incomplete. This page shows public chess results only. Is this you and you want the page removed? Email chessmoose1@gmail.com and we remove it.