(;GM[1]FF[4]SZ[19]
GN[Failure]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem7/Solution]AP[GoWiki:2009]
DT[2024-02-21]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem7/Solution

Failure]
PL[B]

AB[fl][gl][cm][em][hm][hn][bo][co][io][ip][cq][dq][hq][cr][er][fr][gr][ir]
AW[gn][eo][ho][bp][cp][dp][hp][bq][eq][fq][gq][br][bs]
LB[fp:a]

;B[go]C[B1]MN[1]
;W[gp]C[W2]MN[2]
;B[ep]C[B3]MN[3]
;W[fo]C[W4]MN[4]

;LB[fp:a]
)
