Mezue ahịrịokwu na-esonụ: 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 usoro iwu nke FIDE).
World Chess Championship 2012) ekweghị ka ndị 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: