(;GM[1]FF[4]SZ[6]
GN[Square Four]
PC[http://senseis.xmp.net/?KillingShapes]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?KillingShapes

Square Four]
PL[B]

AB[bb][cb][db][eb][bc][ec][bd][ed][be][ce][de][ee]

;B[dc]C[B1]MN[1]
;W[cd]C[W2]MN[2]

;
)
