pgierech
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)
מועדונים
Liga Team Poland
Liga Team Poland 288 חברי מועדון
Middle-earth
Middle-earth 176 חברי מועדון
Team Warsaw
Team Warsaw 76 חברי מועדון
World Cities League HQ
World Cities League HQ 564 חברי מועדון
World League Headquarters
World League Headquarters 671 חברי מועדון