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Jacek Stefan Kotkowski
* 2007 (18)
Best Elo
1771
Latest Elo
1643
Birthyear
2007
Fide
Jul '22
Jul '22
2023
2023
Jul '23
Jul '23
2024
2024
Jul '24
Jul '24
2025
2025
1900
1800
1700
1600
1500
1400
1300
1200
1100
1000
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Wins
Draws
Losses
White
7
28.6%
14.3%
57.1%
Wins
Draws
Losses
Black
7
57.1%
28.6%
14.3%
Wins
Draws
Losses
Total
14
42.9%
21.4%
35.7%
Strongest win
Urs Martin Egli
(1808) 0-1
Jacek Stefan Kotkowski
(1446)
Weakest loss
Alicja1 Woznica
(1644) 1-0
Jacek Stefan Kotkowski
(1771)
Openings Played as White (6)
B22 - Sicilian, Alapin
Average Elo: 1831
Result: 0/2 = 0%
B06 - Robatsch
Average Elo: 1696
Result: 0/1 = 0%
C01 - French, Exchange
Average Elo: 1333
Result: 0/1 = 0%
B90 - Sicilian, Najdorf
Average Elo: 1225
Result: 1/1 = 100%
A13 - English
Average Elo: 1775
Result: 0.5/1 = 50%
B32 - Sicilian
Average Elo: 1623
Result: 1/1 = 100%
Openings Played as Black (6)
B21 - Sicilian, 2.f4 and 2.d4
Average Elo: 1594
Result: 1/2 = 50%
E32 - Nimzo-Indian, Classical
Average Elo: 1239
Result: 1/1 = 100%
B40 - Sicilian
Average Elo: 1397
Result: 0.5/1 = 50%
A07 - King's Indian Attack
Average Elo: 1808
Result: 1/1 = 100%
E38 - Nimzo-Indian, Classical, 4...c5
Average Elo: 0
Result: 0.5/1 = 50%
E01 - Catalan, Closed
Average Elo: 1676
Result: 1/1 = 100%