How did the Truce of Andrusovo divide Ukraine?

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Map showing Poland's territory in 1634 under the reign of Wladyslaw IV Vasa, shaded in pink and spanning from the Baltic Sea in the north to near Kyiv in the southeast. Major present-day cities such as Warsaw, Krakow, Gdansk, Vilnius, Minsk, Lwow (Lviv), Pinsk, and Kyiv are marked within the territory, with surrounding cities like Moscow, Riga, Vienna, and Budapest shown for reference. — Polish-Lithuanian Commonwealth Poland's territory in 1634, during the reign of Władysław IV Vasa.

The Truce of Andrusovo (1667) concluded the Thirteen Years’ War between Russia and the Polish-Lithuanian Commonwealth by partitioning Ukraine along the Dnieper River.12

The division established the following territorial control:

Left Bank Ukraine: Russia was confirmed in its possession of the eastern portion of Ukraine.12
Right Bank Ukraine: The western portion reverted to Polish control.2
Kyiv: Although located on the west side of the Dnieper, the city was placed under Russian control, initially for a two-year period, though it was never recovered by Poland.32

This partition effectively ended the period of conflict between the two powers over the region and was later formalized by the Treaty of Eternal Peace in 1686.12