chess amateur player and arbiter (regional class), in chess.com superadmin of Team Warsaw (since Nov 2018), admin of Vatican City team (Jan-Dec 2018)
Clubs
Liga Team Poland
287 Mitglieder
Middle-earth
176 Mitglieder
Team Warsaw
77 Mitglieder
World Cities League HQ
559 Mitglieder
World League Headquarters
653 Mitglieder