Buuxi weedhan soo socota: Dhanka kale, waqooyiga dalkii Manchu, dalxiisayaashii Vassili Poyarkov (1643<unk>1646) iyo Yerofei Khabarov (1649<unk>1653) waxay bilaabeen inay sahamiyaan dooxada wabiga Amur ee Tzarist Russia. Sanadkii 1653 Khabarov waxaa dib loogu yeeray Moscow waxaana lagu beddelay Onufriy Stepanov, oo la wareegay amarka ciidamada Khabarov ee Cossack. Stepanov wuxuu koonfurta u galay wabiga Sungari, kaas oo uu ka qaatay "yasak" (caajis dhogorta) dadyowga asaliga ah sida Daur iyo Duchers, laakiin kooxahan ayaa iska caabiyay maxaa yeelay waxay horeyba u bixinayeen cashuur Amiirkii Shunzhi ("Shamshakan" ilaha Ruushka). Sanadkii 1654 Stepanov wuxuu ka adkaaday ciidan yar oo Manchu ah oo laga soo diray Ningguta si ay u baaraan horumarka Ruushka. Sanadkii 1655 taliyaha kale ee Qing, Mongol Minggadari (d. 1669), wuxuu ka adkaaday ciidammadii Stepanov ee ku sugnaa qalcadda Kumarsk ee Amur, laakiin tani kuma filneyn in la eryado Ruushka. Sanadkii 1658, si kastaba ha noqotee, sarkaalkii Manchu Šarhūda (1599<unk>1659) wuxuu weeraray Stepanov isagoo wata 40 ama in ka badan oo maraakiib ah oo ku guuleystey inay dilaan ama qabsadaan inta badan Ruushka. Guushii Qing waxay si ku meel gaar ah uga saartey dooxada Amur kooxaha Cossack, laakiin
Dagaallada xuduudaha ee Sino-Ruushku waxay sii socon lahaayeen illaa 1689, markii la saxiixay heshiiskii Nerchinsk ee lagu xaliyay xuduudaha u dhexeeya Ruushka iyo Qing.