Zhang Kaixin or Chang Kaihsin (張凱馨) is a female Taiwanese professional player born 1980-07-04.
4p 2011-02-24 (50 wins as 3 dan; promotion was recognized on 2011-04-22)
5p 2014-01-07 (60 wins as 4 dan)
Winner in 2012 of the 2nd Female Taiwan Mingren, with a perfect score of 10-0 (runner-up in the 1st edition 2011).
She was involved in the 2011 gender discrimination in Taiwanese Go protest over unequal game fees, following the 2011 Qiandeng Cup Incident.
Runner up to Joanne in the inaugural Female Zuiqiang in 2015.
Archived Chinese profile with exact promotion dates