(;GM[1]FF[4]SZ[19]
GN[Failure B4 @ W1]
PC[http://senseis.xmp.net/?XuanxuanQijingProblem131/Solution]AP[GoWiki:2009]
DT[2015-03-08]
C[Diagram from http://senseis.xmp.net/?XuanxuanQijingProblem131/Solution

Failure B4 @ W1]
PL[W]

AB[ek][bl][cl][dl][am][em][fm][gm][bn][cn][hn][co][fo][ho][gp][bq][fq][gq][cr][er][ds][es]
AW[bm][cm][dm][dn][en][fn][gn][bo][bp][cp][dp][ep][fp][dq][eq][dr][fr]

;W[an]C[W1]MN[1]
;B[ao]C[B2]MN[2]
;W[ap]C[W3]MN[3]
;W[br]C[W5]MN[5]
;B[bs]C[B6]MN[6]
;W[ar]C[W7]MN[7]
;B[gr]C[B8]MN[8]
;W[cq]C[W9]MN[9]
;B[go]C[B10]MN[10]

;
)
