原来碧山棋力证书不受总会承认。有哪些棋队的棋力证书受总会承认？
If you really in the seeking of information ......
my reply above have provided the links :
first one is the rules for 2008 Singapore Open with addresses for Boon Lay and SIXGA, and even with rules mentioned about representing Singapore.
second one is the details of Bishan Internal Grading System for members only.
these have shown that you are not seeking for information.
Huasing Association 1999 - 2013