(;GM[1]FF[4]SZ[19]
GN[The square]
PC[http://senseis.xmp.net/?SquareGoodShape]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?SquareGoodShape

The square]
PL[B]

AB[ee]
AW[dd][fd][df][ff]

;B[ef]C[B1]MN[1]
;W[ed]C[W2]MN[2]
;B[de]C[B3]MN[3]
;W[fe]C[W4]MN[4]

;
)
