(;GM[1]FF[4]SZ[19]
GN[Failure]
PC[http://senseis.xmp.net/?BeginnerExercise173/Solution]AP[GoWiki:2009]
DT[2009-12-11]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise173/Solution

Failure]
PL[W]

AB[bm][cm][dm][em][fm][cn][gn][bo][do][go][io][bp][hp][bq][cq][gq][hq][iq][br][hr][bs]
AW[bn][en][co][eo][ho][cp][ep][gp][ip][dq][eq][fq][cr][er][cs][ds]
CR[do]

;W[gs]C[W1]MN[1]
;B[gr]C[B2]MN[2]
;W[fr]C[W3]MN[3]
;B[fs]C[B4]MN[4]

;CR[do]
)
