(;GM[1]FF[4]SZ[19]
GN[Black to kill]
PC[http://senseis.xmp.net/?GokyoShumyoSection2Problem15]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection2Problem15

Black to kill]
PL[B]

AB[gb][ac][ec][fc][bd][dd][ae][ce]
AW[ab][bc][be][bf][cf]


;
)
