Dee ihe na-aga n'ihu maka paragraf a - A makwaara dị ka "Sofia-Corsica Rules", a nabatara usoro mgbochi ịdọ aka na ntị na Bilbao Final Masters na FIDE Grand Prix 2008-2010 (akụkụ nke World Chess Championship 2012
) ekweghị ka ndị na-egwu egwuregwu nye draw. A ga-eji onye na-agba ọsọ, onye onye isi obodo nwere ahụmahụ nyere aka. A na-ekwe ka ndị a na-esote naanị site n'aka Onye Isi Arbiter: