Sergey Alexandrovich Karjakin is a Russian chess grandmaster. A chess prodigy, he holds the record for the world's youngest ever grandmaster, having qualified for the title at the age of 12 years and 7 months.
This text and the image thumbnail are from Wikipedia, where you can read more about the player.
You can add the player to the filter, and play puzzles based on the player's games.
A list of these puzzles is below, with the most difficult puzzles first.