(;GM[1]FF[4]SZ[19]
GN[Black to kill]
PC[http://senseis.xmp.net/?BeginnerExercise277]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise277

Black to kill]
PL[B]

AB[db][dc][cd][dd][be][bf]
AW[ba][cb][ac][cc][bd]


;
)
