<prompt> Pedzisa mutsara unotevera: Uku kudzivirira kwakabudiswa muna 1843 muPaul Rudolf von Bilguers Handbuch des Schachspiels uye yakaongororwa naHenry Bird mukupera kwezana ramakore rechi19. Shiri yakairidza seMnyama kanokwana makumi maviri neshanu, ichiwana 9 3 -13 pfumbamwe kuhwina, matatu kukweva, gumi nematatu kurasikirwa. Dziviriro yaBird yakazoshandiswa kashoma mumutambo wemakwikwi naSiegbert Tarrasch, Boris Spassky, naAlexander Khalifman. Kunyange zvazvo ichiri dzimwe nguva ichionekwa sechombo chinoshamisa, hapana tenzi akasimba kubvira pakatanga Bird akachishandisa nguva dzose. Mukwikwidzi Wenyika Magnus Carlsen akairidza sechitema mu  <response>: 2014 Chess Olympiad kurwisa Ivan Šarić uye akarasikirwa. 