(;GM[1]FF[4]SZ[19]
GN[Ko (B11 at ''a'')]
PC[https://senseis.xmp.net/?GokyoSeimyoVolume3Problem34/Solution]AP[GoWiki:2009]
DT[2023-02-15]
C[Diagram from https://senseis.xmp.net/?GokyoSeimyoVolume3Problem34/Solution

Ko (B11 at ''a'')]
PL[B]

AB[ca][da][cb][eb][dc][dd][de][df][dg][dh][ci]
AW[ba][bb][cc][cd][ce][bg][ch][di][dj][ck]
LB[ag:a]

;B[bf]C[B1]MN[1]
;W[cf]C[W2]MN[2]
;B[cg]C[B3]MN[3]
;W[bh]C[W4]MN[4]
;B[bc]C[B5]MN[5]
;W[bd]C[W6]MN[6]
;B[ae]C[B7]MN[7]
;W[ac]C[W8]MN[8]
;B[bi]C[B9]MN[9]
;W[be]C[W10]MN[10]

;LB[ag:a]
)
