- Born on 12/16/1989.
- In July 2000, became 1p.
- In 2004, promoted to 4p.
- In July 2005, promoted to 5p.
- In 2007, directly promoted to 9p after two world tournament runner-up.
- In 1998 and 1999, won the champion of National Youth Training Competition.
- In Aug. 2002, won the champion of National Youth Group A.
- In 2005, won the champion of National Go Individual, defeated Lee Changho in the second round of 10th LG Cup and advanced to the final.
- In 2009, won 23rd Tianyuan Title by defeating Gu Li 2:0 in best-of-3 final and defeated Kang Doonyoon by 2:1 in China-Korea Tengen dual meet.
- In 2010, successfully defended Tianyan Title and won 22nd CCTV Cup champion.
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