RU[Chinese]SZ[19]HA[0]KM[5.5]
GN[White (W) vs. Black (B)]
SY[Cgoban 1.9.12]TM[10:00(5x1:00)];
AW[ag][bg][cg][dg][dh][di][aj][bj][cj]
AB[ai][bi][ci][dj][bk][dk][al][bl][cl][dl]
Black wins unconditionally.
White has two ko threads in either A12, B12, C12. Value of the kothread 12 points.