<prompt> Nyora kupfuurira kweiyi ndima - Riazanova Tkachenko vakatanga kukwikwidzana pamwechete mumwaka wa2009 2010. Vakapedza chechina pa2009 Nebelhorn Trophy, yechitanhatu pamutambo wavo wega weGrand Prix, 2009 Cup yeRussia, uye yechina paRussia Nationals  <response>: . 