Jacek Stachanczyk
Jaworzno
IBCA World Champion
Clubs
Chess.com Verified Titled Players
10.355 membros
Chess.com Legends Club
2.711.539 membros
Olympic Esports Series - Trials
8.730 membros
Klub Zbigniewa Paklezy
4.265 membros
Polski Związek Szachowy
25.242 membros