An kori Vasily Yurevich daga Moscow;Har ila yau, ya rasa Zvenigorod zuwa Vasily II kuma an bar shi ba shi da ƙasa, an tilasta masa ya gudu zuwa Novgorod.A 1435, Vasily iya tattara sojojin a Kostroma kuma ya koma Moscow.Ya sha kashi a bakin kogin Kotorosl zuwa Vasily II ya gudu zuwa Kashin.Sa'an nan ya yi nasarar cinye Vologda kuma ya gina sabon sojoji tare da goyon bayan Vyatka.Da wannan sabon runduna ya sake komawa kudu ya ci karo da Vasily II a Kostroma.Sojojin biyu sun jibge a bakin kogin Kostroma kuma ba su iya fara fada nan take ba.Kafin a fara fada, 'yan uwan ​​biyu sun kulla yarjejeniyar zaman lafiya.Vasily Yurevich gane Vasily II a matsayin Great Prince kuma samu Dmitrov.Duk da haka, kawai ya shafe wata daya a Dmitrov kuma daga baya ya koma Kostroma kuma ya kara zuwa Galich da Veliky Ustyug.A cikin Veliky Ustyug, sojojin kafa a Vyatka, wanda ya dade goyon bayan Yuri Dmitrievich, kuma ya shiga Vasily.Vasily Yurevich ya washe Veliky Ustyug kuma tare da sojojin ya sake komawa kudu.A farkon 1436, ya rasa wani yaki a Skoryatino, kusa da Rostov, zuwa Vasily II, kuma aka kama daga baya, a lokacin da Vyatka mutane ci gaba da kai hari a cikin ƙasa na Grand Prince Vasily II ya ba da umarnin a makanta Vasily Yurevich.Bayan haka Vasily Yurevich aka sani da Vasily Kosoy.