(;GM[1]FF[4]SZ[19]
GN[Prevention cum attack]
PC[http://senseis.xmp.net/?SixGoodAndSixBadShapes/Discussion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?SixGoodAndSixBadShapes/Discussion

Prevention cum attack]
PL[B]

AB[jd][kd][ld]
AW[hc][jc][kc]

;B[id]C[B1]MN[1]

;
)
