Michal Mazurkiewicz
Klubber
Chess.com Verified Titled Players
10.349 Medlemmer
Polski Związek Szachowy
25.210 Medlemmer
Chess.com Legends Club
2.698.288 Medlemmer
Olympic Esports Series - Trials
8.734 Medlemmer
Klub Zbigniewa Paklezy
4.267 Medlemmer