(;GM[1]FF[4]SZ[19]
GN[Black to kill]
PC[http://senseis.xmp.net/?GokyoShumyoSection2Problem30]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection2Problem30

Black to kill]
PL[B]

AB[db][eb][bc][cc][ec][ed][ee][bf][cf][ch]
AW[da][bb][cb][dc][cd][dd][be][ce]


;
)
