Nguyen began playing chess at the age of nine. She won the gold medal in Vietnamese Junior Girls Under 13 Championship in 1998, and the silver medal in Vietnamese Junior Girls Under 15 Championship in 1999. Nguyen first represented Vietnam in the World Rapid Girls Under 14 Championship (Disneyland, Paris) in 1998. Representing Vietnam, she won a gold medal at the Asian Girls Under 14 Championship in 1999, a silver medal at the 2nd Children of Asia International Children Sports Games in 2000, and a silver medal in the ASEAN Girls Under 16 Championship in 2000. In 2001, Nguyen moved to
Adelaide, Australia. She came equal third in the
Australian Junior Championship in
Sydney in 2002. Since 2008, Nguyen has been playing chess under the Australian flag. She has represented Australia in eight
Chess Olympiads: in
2008,
2010,
2012,
2014,
2016,
2018,
2022, and
2024. In 2012, she scored 6/9 and was awarded the
Woman FIDE Master (WFM) title for her result. ==Mathematics==