(;GM[1]FF[4]SZ[19]
GN[Double ko]
PC[http://senseis.xmp.net/?OD1PAug14Problem/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?OD1PAug14Problem/Solution

Double ko]
PL[B]

AB[dp][ep][bq][cq][eq][fq][er]
AW[co][do][eo][ho][bp][cp][fp][gp][hq][br][dr][gr]

;B[ar]C[B1]MN[1]
;W[cr]C[W2]MN[2]
;B[dq]C[B3]MN[3]
;W[cs]C[W4]MN[4]
;B[bs]C[B5]MN[5]
;W[as]C[W6]MN[6]
;B[aq]C[B7]MN[7]
;W[es]C[W8]MN[8]
;B[fs]C[B9]MN[9]
;W[fr]C[W10]MN[10]

;
)
