Shiduan

"Shiduan" means "10-dan". Refers to two Taiwanese tournaments, one past and one present.

1) (鈺徳杯十段賽) Started in 2007. Abandoned in 2009, with the 3rd edition unfinished.

Winners:

• 2007 Zhou Junxun d. 3-0 Peng Jinghua
• 2008 Qin Shi d. 3-1 Zhou Pingqiang

2) (友士杯十段賽) The name was revived in 2011 with a new sponsor (Youshi).

From the 2012 edition on, the challengers' tournament became a double elimination knockout, whereas in 2011 it had been a league. In 2022 the format was made into single elimination.

For crosstables, see the GTE page.