(;GM[1]FF[4]SZ[19]
GN[]
PC[https://senseis.xmp.net/?IgoHatsuyoRonProblem15/Solution]AP[GoWiki:2009]
DT[2023-01-30]
C[Diagram from https://senseis.xmp.net/?IgoHatsuyoRonProblem15/Solution

]
PL[W]

AB[lc][mc][pc][qc][nd][od][pd][nf][rf][lg][og][pg]
AW[ic][nc][rc][kd][ld][qd][rd][oe][pe][qe]

;W[qb]C[W1]MN[1]
;B[pb]C[B2]MN[2]
;W[qa]C[W3]MN[3]
;B[sb]C[B4]MN[4]
;W[rb]C[W5]MN[5]
;B[sa]C[B6]MN[6]
;W[ne]C[W7]MN[7]
;B[me]C[B8]MN[8]
;W[md]C[W9]MN[9]
;B[nb]C[B10]MN[10]

;
)
