Buuxi weedhan soo socota: Difaaca waxaa lagu daabacay 1843 buugga "Handbuch des Schachspiels" ee Paul Rudolf von Bilguer waxaana baaray Henry Bird dabayaaqadii qarnigii 19aad. Bird wuxuu u ciyaaray madow ugu yaraan 25 jeer, isagoo dhaliyay +9 = 3 -13 (sagaal guul, saddex barbaro, saddex iyo toban guuldaro). Difaaca Shimbiraha waxaa markii dambe dhowr jeer u adeegsaday ciyaaraha tartanka Siegbert Tarrasch, Boris Spassky, iyo Alexander Khalifman. Inkastoo wali mararka qaar loo arko inay tahay hub lama filaan ah, ma jiro sayid awood badan tan iyo markii Bird ay si joogto ah u qaadatay. Horyaalka Adduunka Magnus Carlsen wuxuu u ciyaaray madow
2014 Chess Olympiad ka dhanka ah Ivan Šarić oo laga badiyay.