<prompt> Nyorera kuenderera mberi kweiyi ndima - Vaviri veWorld Cup vanokodzera Boris Gelfand muna 2009 naSergey Karjakin muna 2015 vakahwina mukwikwidzi weVamiriri uye vakatamba mumutambo weWorld Championship, muna 2012  <response>: uye 2016 zvichiteerana. 