(;GM[1]FF[4]SZ[19]
GN[Black to kill]
PC[http://senseis.xmp.net/?GokyoShumyoSection2Problem16]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection2Problem16

Black to kill]
PL[B]

AB[fb][ec][fc][ad][bd][cd][dd]
AW[ea][eb][bc][cc][dc]


;
)
