<prompt> Nyora kupfuurira kweiyi ndima - Nechekare muzana ramakore rechi 16 vamwe vemitezo yemhuri vakabatira saCossacks. Muna 1551, Ivan the Terrible akatamisa boka rose revarwi veSviyazhsk kumabvazuva kunopa masimba ehondo nokuda kweguta idzva reSviyazhsk nokuda kwehondo yake kurwisa Kazan  <response>: . Mumwe weSviyazhsk Cossack atamans aiva Alexey Kobyzev, uyo akatungamirira boka reCossack muhondo neChuvashy muna 1552. Hondo yacho yakarasika uye maCossack akanga ane varume 70 vakafa. 