(;GM[1]FF[4]SZ[19]
GN[Solution: ko]
PC[https://senseis.xmp.net/?GokyoSeimyoVolume3Problem25/Solution]AP[GoWiki:2009]
DT[2023-02-15]
C[Diagram from https://senseis.xmp.net/?GokyoSeimyoVolume3Problem25/Solution

Solution: ko]
PL[W]

AB[lb][qb][sb][jc][kc][mc][nc][rc][od][pd][qd]
AW[lc][oc][sc][ld][nd][rd][sd][ne][oe][pe][qe][rf]

;W[nb]C[W1]MN[1]
;B[mb]C[B2]MN[2]
;W[pb]C[W3]MN[3]
;B[qc]C[B4]MN[4]
;W[qa]C[W5]MN[5]
;B[ra]C[B6]MN[6]
;W[oa]C[W7]MN[7]

;
)
