the grading system of 汕头棋院 (11 grades for the youth) too, have a look at Hong Kong System (more than 20 grades in total).

May be it is easier for Bishan to try out our 12-grade system for all age groups within the club.

Furthermore, we are not having a separate system if you look at the condition in details, e.g.

Grade 1 = Grade A of SIXGA from SIXGA Group A competiton each year

Grade 2 = Grade B of SIXGA from SIXGA Group B competiton each year

Grade 3 = Positons 5 to 8 of SIXGA Group B competiton each year

Grade 4 = Positions 9 to 12 of SIXGA Group B competiton each year

other grades just to take care of various age groups competition of Char Yong Cup organised by SIXGA in March each year.