<prompt> Pedzisa mutsara unotevera: RiazanovaTkachenko vakatanga kukwikwidzana pamwechete mumwaka wa2009-10. Vakapedza chechina pa2009 Nebelhorn Trophy, yechitanhatu pamutambo wavo wega weGrand Prix, 2009 Cup yeRussia, uye yechina pa  <response>: Vanhu vokuRussia. 