 An advance regiment commanded by Koniecpolski and Ostrorog crossed the Ikopot River at Rosolivtsi on 6 September O.S.and encountered a Cossack garrison near Starokostiantyniv, who overnight abandoned the town to the Polish army.Yet, rather than "establishing themselves in..this mighty fortress...they set out to take" Khmelnytsky's position at Pyliavtsi, convinced "he would do anything to avoid a battle" while awaiting the arrival of the Tatars.