(;GM[1]FF[4]SZ[19]
GN[Black to kill]
PC[http://senseis.xmp.net/?GokyoShumyoSection2Problem11]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection2Problem11

Black to kill]
PL[B]

AB[eb][dc][fc][cd][dd][cf][ch]
AW[da][db][bc][cc][bd]


;
)
