In 1652 after the death of Jangir khan, the son of Khan Esim, the ruler of Jungars Batyr had strengthened the military pressure on Kazakh khanate. Eventually he dies in 1670. Kaldan Boshakty replaces him (1670-1699, in some sources 1670-1697) who was succeeded by Seban Rabtan (1699 - 1729).
The hardest time for kazakhs started from 1698. When kazakhs started the division into Juzes the ruling of kazakh became a complicated task. Tauke khan who remained the khan of all three Juzes, managed to keep the unity of kazakhs. In 1692 Tauke connected with Peter I of Russia. Eventually, Russian Empire lowered the trade taxes (also known as bazh tax). In 1710 by uniting 3 juzes in the place Kuntobe (near the city of Tashkent), Tauke khan fought Jungars in the place named Augyr and gained a victory.
With Tauke Khan's death in 1718, the Kazakh Khanate splintered into three "jüzes" — the Great jüz, the Middle jüz and the Little jüz. Each jüz had its own khan from this time forward. Tauke Khan is also known for refining the Kazakh code of laws, and reissuing it under the title "Жеті Жарғі" (transliterated, "Jeti Jarği" —"Seven Charters").Information was taken from a site wikipedia