It seemed normal when Nguyen Ngoc Truong Son wanted to play chess with his parents.However, it was unusual when he revealed that he already knew how to play before anyone taught him. Apparently the two-year-old had learned all of the rules by watching his parents.After only one month of playing with them, he was winning all of the games.By age 4, he was competing in national tournaments.By age 12, he was Vietnam's youngest champion