(;GM[1]FF[4]SZ[9]
GN[Attack the weakest stone]
PC[http://senseis.xmp.net/?TheArtOf9x9Go/chie717]AP[GoWiki:2009]
DT[2016-10-14]
C[Diagram from http://senseis.xmp.net/?TheArtOf9x9Go/chie717

Attack the weakest stone]
PL[B]

AB[ec][fe][cg]
AW[de][eg]
CR[fe]

;B[ff]C[B9]MN[9]
;W[ee]C[W10]MN[10]

;CR[fe]
)
