Karjakin
Karjakin is a surname of East Slavic origin, most notably associated with Sergey Karjakin, a Russian chess grandmaster. Sergey Karjakin was born in Simferopol, Crimea, Ukraine, in 1990. He achieved the title of Grandmaster at the age of 12 years and 7 months, making him the youngest person in history to do so. Karjakin is also a former World Junior Chess Champion and has competed in the Candidates Tournament multiple times, aiming to challenge for the World Chess Championship. He has represented both Ukraine and Russia in international chess competitions.
Beyond Sergey Karjakin, the surname may appear in other contexts, though less prominently. It is a patronymic