In 1581 Yermak began his voyage into the depths of Siberia with a band of 1,636 men, following the Tagil and Tura Rivers. The following year they were on the Tobol, and 500 men successfully laid siege to Qashliq, the residence of Khan Kuchum, near what is now Tobolsk. After a few victories over the khan's army, Yermak's people defeated the main forces of Kuchum on Irtysh River after a 3-day battle of Chuvash Cape in 1582. The remains of the khan's army retreated to the steppes, abandoning his domains to Yermak, who, according to tradition, by presenting Siberia to tsar Ivan IV achieved his own restoration to favour.