(;GM[1]FF[4]SZ[19]
GN[Black to make ko]
PC[http://senseis.xmp.net/?GokyoShumyoSection3Problem48]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection3Problem48

Black to make ko]
PL[B]

AB[ec][fc][hc][bd][ce][ee][cf][df][ef]
AW[bc][dc][cd][dd][de]


;
)
