Michal Mazurkiewicz
Klubber
Chess.com Verified Titled Players
9.768 Medlemmer
Polski Związek Szachowy
24.763 Medlemmer
Chess.com Legends Club
2.441.448 Medlemmer
Olympic Esports Series - Trials
8.787 Medlemmer
Klub Zbigniewa Paklezy
4.292 Medlemmer