(;GM[1]FF[4]SZ[19]
GN[Failure]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem249/Solution]AP[GoWiki:2009]
DT[2023-02-06]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem249/Solution

Failure]
PL[B]

AB[gb][pb][rb][fc][hc][ic][jc][kc][oc][qc][ld][md][nd][od]
AW[hb][ib][jb][kb][ob][qb][lc][mc][nc]

;B[ma]C[B1]MN[1]
;W[nb]C[W2]MN[2]
;B[oa]C[B3]MN[3]
;W[na]C[W4]MN[4]
;B[lb]C[B5]MN[5]
;W[pa]C[W6]MN[6]
;B[qa]C[B7]MN[7]
;W[ka]C[W8]MN[8]

;
)
