(;GM[1]FF[4]SZ[19]
GN[White to defend]
PC[http://senseis.xmp.net/?EndgameExercise1]AP[GoWiki:2009]
DT[2010-02-06]
C[Diagram from http://senseis.xmp.net/?EndgameExercise1

White to defend]
PL[B]

AB[ea][eb][ec][ed][de][cf][ef][bg][cg]
AW[cc][dc][bd][dd][be][ce][bf]


;
)
