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)
Klub
Liga Team Poland
287 Anggota
Middle-earth
176 Anggota
Team Warsaw
76 Anggota
World Cities League HQ
565 Anggota
World League Headquarters
669 Anggota