(;GM[1]FF[4]SZ[19]
GN[White to play and live by [oiotoshi\]. The solution is a ko.]
PC[http://senseis.xmp.net/?GokyoShumyoSection5Problem6]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection5Problem6

White to play and live by [oiotoshi\]. The solution is a ko.]
PL[W]

AB[fa][db][eb][gb][bc][cc][hc][gd][ce][ge][cf][ef]
AW[fb][ac][dc][fc][bd][cd][dd][fd]


;
)
