(;GM[1]FF[4]SZ[19]
GN[Failure.]
PC[http://senseis.xmp.net/?SomeEndgameProblem7/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?SomeEndgameProblem7/Solution

Failure.]
PL[B]

AB[cb][cc][bd][be][ce][de][ef][dg]
AW[bb][db][bc][ec][gc][cd][dd][ee][fe]

;B[ac]C[B1]MN[1]
;W[ab]C[W2]MN[2]
;B[ba]C[B3]MN[3]
;W[ad]C[W4]MN[4]

;
)
