(;GM[1]FF[4]SZ[19]
GN[similar ko]
PC[https://senseis.xmp.net/?GokyoShumyoSection3Problem68/Solution]AP[GoWiki:2009]
DT[2023-01-21]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection3Problem68/Solution

similar ko]
PL[B]

AB[dn][co][fo][go][jo][hp][ip][cq][eq][jq][kq][br][cr][dr][jr]
AW[dp][ep][fp][dq][gq][iq][er][ir][ds]

;B[fs]C[B1]MN[1]
;W[gs]C[W2]MN[2]
;B[gr]C[B3]MN[3]
;W[hr]C[W4]MN[4]
;B[hs]C[B5]MN[5]
;W[fr]C[W6]MN[6]
;B[hq]C[B7]MN[7]

;
)
