(;GM[1]FF[4]SZ[19]
GN[Using the trickiest reply]
PC[http://senseis.xmp.net/?KyuExercise20/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?KyuExercise20/Solution

Using the trickiest reply]
PL[W]

AB[io][bq][cq][dq][iq][cr][er][ir]
AW[bn][fo][bp][cp][dp][eq][fq][hq][fr][hr]

;W[aq]C[W1]MN[1]
;B[ar]C[B2]MN[2]
;W[bs]C[W3]MN[3]
;B[fs]C[B4]MN[4]
;W[ds]C[W5]MN[5]
;B[es]C[B6]MN[6]
;W[gs]C[W7]MN[7]
;B[dr]C[B8]MN[8]
;W[cs]C[W9]MN[9]
;B[ap]C[B10]MN[10]

;
)
