In 1591 Koltsov caught Kuchum on the Ishym River and captured two of his wives and his son Abdul-Khair who was later given estates in Russia.
V roce 1591 Koltsov chytil Kučuma na řece Ishym  a zajal dvě z jeho manželek a jeho syna Abdul-Khaira, který později dostal panství v Rusku.