<prompt> Qedela umusho olandelayo: Uma kuqhathaniswa nemincintiswano emikhulu yangaphambilini efana nomqhudelwano we-chess waseLondon ngo-1851,  <response>: Emqhudelwaneni we-chess waseLondon ngo-1862 nasemqhudelwaneni we-chess waseParis ngo-1867, kwakukhona izinto ezimbili ezintsha: amawashi e-chess asetshenziswa okokuqala kwakudingeka kwenziwe ukunyakaza okungu-20 ngehora, futhi ukudonsa kwabalwa njengamaphuzu ayingxenye. 