On this day, 45 years ago, on January 20, 1980 (December 3, 1979, the Japanese chess player Zhang Xu was born. Zhang Xu was born in Taipei, China on January 20, 1980. Lin Haifeng's disciple, entered the section in 1994 and entered the section in 2001. Won the quarterfinals of the Fujitsu Cup in 2000. In 2001, he became a challenger in the Beninfang Battle, setting a record for the youngest challenger in this chess game, rising to eight stages. In 2002, he won the NHK Cup championship and successfully challenged Beninfang again in 2003 and was promoted to ninth rank. In 2007, Zhang Xu gathered celebrities, chess masters, NEC Cup, Ahan Tongshan Cup, Dragon Star War, and Invincible Five Champions. On August 30, 2007, Zhang Xu won the 600th victory. (210 losses, 2 draw, 1 loss) became the 49th chess player in history to achieve this result. Zhang Xu has set two records for the youngest and fastest victories in 600 sets at an age of 27 years and 7 months and 13 years and 4 months after entering the competition. On October 20, in the 14th Akhan Tongshan Cup final, Zhang Xu defeated Zhao Zhixun in nine stages to win the championship, raising the number of titles to 20. (Later regained celebrity title and won his 21st title) became the 12th chess player in Japanese history to win 20 titles. It also broke the record of the youngest to win 20 titles held by Zhao Zhixun for many years.