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

Trade off]
PL[B]

AB[ec][be][ee][fe][cg]
AW[bd][de][df][ff][eg]

;B[cd]C[B11]MN[11]
;W[bf]C[W12]MN[12]
;B[ce]C[B13]MN[13]
;W[cf]C[W14]MN[14]
;B[bc]C[B15]MN[15]

;
)
