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

Black to kill]
PL[B]

AB[da][db][cc][dc][ad][bd][cd]
AW[ba][ab][cb][ac][bc]


;
)
