Yang Dingxin was born in 1998 in
Zhengzhou,
Henan. His father, an amateur Go player, introduced him to Go when he was 5 years old. He won the 12th
Ricoh Cup in 2012 at the age of 13 years and 6 months, which broke the record for the youngest player to win a Chinese professional tournament. He also won the
Weifu Fangkai Cup in 2013, and the
Changqi Cup in 2014. He was the winner of the
South-West Qiwang in 2016 and again in 2017. He won seven consecutive games for China in the 21st
Nongshim Cup (2019–2020). He was finally eliminated in his eighth game by Japan's
Iyama Yuta. China went on to win the tournament. He won the
Tianyuan in 2020. In 2021, he was the South-West Qiwang winner for the third time. In a controversial incident in December 2022, Yang publicly suggested that Chinese Go player
Li Xuanhao cheated using AI. Yang made the cheating allegation at the time of a
Chunlan Cup semifinal game between Li Xuanhao and
Shin Jinseo, which Li won. Li had also defeated Yang himself in the quarterfinals of the same tournament. The Chinese Weiqi Association ruled that there was no evidence of cheating, and penalized Yang with a six-month partial suspension from competition. As a notable exception to the suspension, Yang was still allowed to play in the LG Cup final in January–February 2023, which he lost to
Ding Hao. In September 2024, he won the 1st . In that month's rankings, he reached the number one spot in the Chinese Weiqi Association's official ranking of Chinese players. ==Titles==