Michal Mazurkiewicz
Klubber
Chess.com Verified Titled Players
10.406 Medlemmer
Polski Związek Szachowy
25.284 Medlemmer
Chess.com Legends Club
2.728.497 Medlemmer
Olympic Esports Series - Trials
8.726 Medlemmer
Klub Zbigniewa Paklezy
4.260 Medlemmer