(;GM[1]FF[4]SZ[19]
GN[Failure]
PC[http://senseis.xmp.net/?BeginnerExercise162/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise162/Solution

Failure]
PL[W]

AB[ab][bb][cb][db][dc][ec][fc][cd][ce][ee][cf]
AW[da][eb][fb][gb][bc][cc][gc][bd][gd][be][fe][bf][ff][cg][dg][eg]

;W[de]C[W1]MN[1]
;B[df]C[B2]MN[2]
;W[ed]C[W3]MN[3]
;B[dd]C[B4]MN[4]
;W[fd]C[W5]MN[5]
;B[ef]C[B6]MN[6]

;
)
