Mark Bluvshtein is a Soviet-born Canadian chess player. He became the youngest Canadian ever to achieve the title of Grandmaster in 2004, at the age of 16. He previously achieved the title Internation

Zahar Oleksandrovych Efimenko is a Ukrainian chess grandmaster. He was a member of the gold medal-winning Ukrainian team at the 2010 Chess Olympiad. Efimenko competed in the FIDE World Cup in 2005, 20