(;GM[1]FF[4]SZ[19]
GN[Failure.]
PC[http://senseis.xmp.net/?BeginnerExercise220/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise220/Solution

Failure.]
PL[W]

AB[fb][bc][dc][ec][bd][cd][ed][ce][fe][bf][df][ff]
AW[bb][cb][db][eb][gb][cc][fc][gc][dd][gd][ae][ge][cf][gf][cg][eg][fg][gg][ch]

;W[ef]C[W1]MN[1]
;B[ee]C[B2]MN[2]
;W[bg]C[W3]MN[3]
;B[af]C[B4]MN[4]

;
)
