(;GM[1]FF[4]SZ[19]
GN[White to play]
PC[https://senseis.xmp.net/?XuanxuanQijingProblem228/Solution]AP[GoWiki:2009]
DT[2023-02-04]
C[Diagram from https://senseis.xmp.net/?XuanxuanQijingProblem228/Solution

White to play]
PL[W]

AB[go][dp][gp][dq][gq][dr][fr][hr][is]
AW[cn][fn][gn][do][eo][ho][cp][hp][cq][hq][jq][cr][ir][kr]
LB[ep:a]

;W[gs]C[W1]MN[1]
;B[hs]C[B2]MN[2]
;W[ds]C[W3]MN[3]
;B[es]C[B4]MN[4]
;W[fp]C[W5]MN[5]
;B[fq]C[B6]MN[6]
;W[eq]C[W7]MN[7]

;LB[ep:a]
)
