(;GM[1]FF[4]SZ[19]
GN[Solution 1]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem122/Solution]AP[GoWiki:2009]
DT[2023-02-08]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem122/Solution

Solution 1]
PL[B]

AB[on][qn][rn][po][op][oq][or][os]
AW[qo][ro][pp][pq][pr][ps]

;B[rq]C[B1]MN[1]
;W[rr]C[W2]MN[2]
;B[rp]C[B3]MN[3]
;W[qq]C[W4]MN[4]
;B[sr]C[B5]MN[5]
;W[so]C[W6]MN[6]
;B[rs]C[B7]MN[7]
;W[qs]C[W8]MN[8]

;
)
