(;GM[1]FF[4]SZ[19]
GN[Solution: ko]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem253/Solution]AP[GoWiki:2009]
DT[2023-02-10]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem253/Solution

Solution: ko]
PL[W]

AB[km][fn][hn][jn][bo][co][eo][ko][ep][lp][mp][np][fq][jq][kq][oq][pq][qq][rq][er][fr][hr]
AW[lo][mo][no][bp][fp][gp][hp][ip][jp][kp][op][pp][qp][rp][cq][dq][eq][br][dr]
LB[hs:a]

;W[ir]C[W1]MN[1]
;B[iq]C[B2]MN[2]
;W[gr]C[W3]MN[3]
;B[gq]C[B4]MN[4]
;W[hq]C[W5]MN[5]
;B[gs]C[B6]MN[6]
;W[js]C[W7]MN[7]

;LB[hs:a]
)
