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Grandmaster
Jakub Kosakowski
Games
Jakub Kosakowski
GM
Kosak12
Since 2014 (Active)
Chess.com
♟♟♟♟♟
60.1%
-
32.0%
-
7.8%
Daily
1032
0W
3L
0D
Rapid
2525
40W
6L
12D
Blitz
2963
1940W
1070L
273D
Bullet
3034
787W
395L
76D
Biography
Coaching
Statistics
Rating
Openings
Opponents
Games
Recent Games
20 games
Win
vs mr_gustavo
2755
Feb 1, 2026
1m + 1s
E06
Catalan Opening: Closed
Kosak12 won on time
Win
vs mr_gustavo
2758
Feb 1, 2026
1m + 1s
A10
English Opening
Kosak12 won by resignation
Loss
vs mr_gustavo
2761
Feb 1, 2026
1m + 1s
E92
King's Indian Defense: Exchange Variation
mr_gustavo won by resignation
Draw
vs mr_gustavo
2748
Feb 1, 2026
1m + 1s
C02
French Defense: Advance Variation
Game drawn by repetition
Win
vs mr_gustavo
2743
Feb 1, 2026
1m + 1s
B06
Modern
Kosak12 won on time
Loss
vs mr_gustavo
2925
Feb 1, 2026
3m + 1s
E94
King's Indian Defense: Orthodox Variation
mr_gustavo won by checkmate
Win
vs mr_gustavo
2914
Feb 1, 2026
3m + 1s
B10
Caro-Kann Defense
Kosak12 won on time
Win
vs mr_gustavo
2919
Feb 1, 2026
3m + 1s
A20
English Opening: Drill Variation
Kosak12 won by resignation
Loss
vs mr_gustavo
2924
Feb 1, 2026
3m + 1s
E68
King's Indian Defense: Fianchetto Variation, Classical Variation
mr_gustavo won on time
Win
vs mr_gustavo
2913
Feb 1, 2026
3m + 1s
C82
Ruy Lopez: Open
Kosak12 won by resignation
Win
vs mr_gustavo
2918
Feb 1, 2026
5m + 1s
A13
English Opening: Agincourt Defense
Kosak12 won on time
Loss
vs mr_gustavo
2923
Feb 1, 2026
5m + 1s
E14
Queen's Indian Defense: Averbakh Variation
mr_gustavo won by checkmate
Win
vs mr_gustavo
2912
Feb 1, 2026
5m + 1s
D35
QGD: 3.Nc3 Nf6 4.e3
Kosak12 won on time
Win
vs mr_gustavo
2917
Feb 1, 2026
5m + 1s
C11
French Defense: Burn Variation
Kosak12 won by resignation
Loss
vs RobertoJBM
2960
Sep 30, 2025
3m
D02
London System: Poisoned Pawn Variation
RobertoJBM won by resignation
Win
vs RobertoJBM
2951
Sep 30, 2025
3m
A46
Döry Defense
Kosak12 won by resignation
Loss
vs RobertoJBM
2959
Sep 30, 2025
3m
B12
Caro-Kann Defense
RobertoJBM won by resignation
Win
vs DarkAlekhine
2852
Sep 30, 2025
5m
A41
Modern Defense
Kosak12 won on time
Win
vs GelmanAlexander
2793
Sep 30, 2025
5m
B40
Sicilian Defense: Alapin Variation, Sherzer Variation
Kosak12 won on time
Win
vs tetrix83
2697
Sep 30, 2025
5m
C68
Ruy Lopez: Exchange Variation
Kosak12 won on time