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#budapest #olympiads account administrative council affiliation arbiter bk2024 blitz board budapest championship checklist chess history club manager committee community daniel dardha ELO ELO calculation EYCC faq federations fide FIDE ELO fide id gdpr homologation interclub interclub manager international internship league antwerp leagues members new player newsletter non-profit npo Olympiads player manager president rapid rate of play rating registration school survey swar time control tournament-announcement tournaments transgender vademecum youth