(;GM[1]FF[4]SZ[19]
GN[Failure (B4 at B2)]
PC[http://senseis.xmp.net/?KyuExercise152/Solution]AP[GoWiki:2009]
DT[2010-03-07]
C[Diagram from http://senseis.xmp.net/?KyuExercise152/Solution

Failure (B4 at B2)]
PL[W]

AB[an][bn][cn][dn][en][eo][ap][eq][gq][br][cr][er][ds]
AW[ao][bo][co][do][bp][dp][cq][dq][dr]

;W[bq]C[W1]MN[1]
;B[aq]C[B2]MN[2]
;W[ar]C[W3]MN[3]
;B[aq]C[B4]MN[4]
;W[bs]C[W5]MN[5]

;
)
