(;GM[1]FF[4]SZ[19]
GN[Failure]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem67/Solution]AP[GoWiki:2009]
DT[2023-02-07]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem67/Solution

Failure]
PL[B]

AB[pp][qp][oq][qq][rq][sq][nr][or]
AW[mo][oo][po][qo][ro][rp][mq][nq][kr][mr][qr][rr][sr]

;B[pr]C[B5]MN[5]
;W[op]C[W6]MN[6]
;B[qs]C[B7]MN[7]
;W[sp]C[W8]MN[8]
;B[pq]C[B9]MN[9]
;W[ns]C[W10]MN[10]
;B[rs]C[B11]MN[11]
;W[os]C[W12]MN[12]

;
)
