(;GM[1]FF[4]SZ[19]
GN[Shape 2]
PC[http://senseis.xmp.net/?ShapesRelatedToTheCarpentersSquare]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ShapesRelatedToTheCarpentersSquare

Shape 2]
PL[W]

AB[bb][db][dc][cd][dd]
AW[eb][gb][ec][ed][be][ce][de][ee][bg]

;W[da]C[W1]MN[1]
;B[ca]C[B2]MN[2]
;W[bc]C[W3]MN[3]

;
)
