(;GM[1]FF[4]SZ[19]
GN[another ko]
PC[https://senseis.xmp.net/?KyuExercise178/Solution]AP[GoWiki:2009]
DT[2022-12-21]
C[Diagram from https://senseis.xmp.net/?KyuExercise178/Solution

another ko]
PL[B]

AB[ao][bo][co][do][ep][eq][er][fr][fs]
AW[bp][aq][dq][dr][bs]

;B[ds]C[B1]MN[1]
;W[br]C[W2]MN[2]
;B[cp]C[B3]MN[3]
;W[cq]C[W4]MN[4]
;B[ap]C[B5]MN[5]
;W[cs]C[W6]MN[6]
;B[bq]C[B7]MN[7]
;W[ar]C[W8]MN[8]
;B[es]C[B9]MN[9]

;
)
