(;GM[1]FF[4]SZ[19]
GN[Black to make ko]
PC[http://senseis.xmp.net/?GokyoShumyoSection3Problem83]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection3Problem83

Black to make ko]
PL[B]

AB[gb][bc][fc][hc][bd][cd][ed][fd][cf]
AW[fa][bb][fb][cc][dc][ec]


;
)
