(;GM[1]FF[4]SZ[19]
GN[B4 mistake]
PC[http://senseis.xmp.net/?KyuExercise200/Attempts]AP[GoWiki:2009]
DT[2011-10-06]
C[Diagram from http://senseis.xmp.net/?KyuExercise200/Attempts

B4 mistake]
PL[W]

AB[bk][cl][bm][dm][dn][eo][bp][fp][cq][fq][cr][er][fs]
AW[bn][cn][co][dp][dq][dr][ds]

;W[br]C[W1]MN[1]
;B[ap]C[B2]MN[2]
;W[bq]C[W3]MN[3]
;B[cp]C[B4]MN[4]
;W[cs]C[W5]MN[5]
;B[an]C[B6]MN[6]
;W[ao]C[W7]MN[7]

;
)
