(;GM[1]FF[4]SZ[19]
GN[Black to make ko]
PC[http://senseis.xmp.net/?GokyoShumyoSection3Problem16]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection3Problem16

Black to make ko]
PL[B]

AB[gb][cc][dc][fc]
AW[hb][bc][gc][ic][cd][gd][be][ee]


;
)
