(;GM[1]FF[4]SZ[19]
GN[Ko (W11 at ''a'')]
PC[https://senseis.xmp.net/?IgoHatsuyoRonProblem101/Solution]AP[GoWiki:2009]
DT[2023-02-02]
C[Diagram from https://senseis.xmp.net/?IgoHatsuyoRonProblem101/Solution

Ko (W11 at ''a'')]
PL[W]

AB[ob][lc][nc][qc][md][qd][le][qe][mf][of][qf][rf][mg][qh][rh]
AW[pb][qb][pc][nd][pd][ne][pf][qg][rg]
LB[sd:a]

;W[pe]C[W1]MN[1]
;B[pg]C[B2]MN[2]
;W[og]C[W3]MN[3]
;B[ph]C[B4]MN[4]
;W[rc]C[W5]MN[5]
;B[ra]C[B6]MN[6]
;W[se]C[W7]MN[7]
;B[rb]C[B8]MN[8]
;W[sb]C[W9]MN[9]
;B[rd]C[B10]MN[10]

;LB[sd:a]
)
