(;GM[1]FF[4]SZ[19]
GN[Failure]
PC[http://senseis.xmp.net/?BeginnerExercise336/Solution]AP[GoWiki:2009]
DT[2016-05-14]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise336/Solution

Failure]
PL[B]

AB[bb][gb][ib][ec][gc][cd][ed][fd][gd][be][de][cf]
AW[ba][da][ga][db][eb][fb][bc][dc][fc]

;B[ab]C[B1]MN[1]
;W[cb]C[W2]MN[2]

;
)
