(;GM[1]FF[4]SZ[19]
GN[[Weak carpenter's square\]]
PC[http://senseis.xmp.net/?CornerShapes]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?CornerShapes

[Weak carpenter's square\]]
PL[W]

AB[db][dc][bd][cd]
AW[eb][ec][dd][be][ce][ee]
CR[dd]
LB[bb:a]


;CR[dd]
LB[bb:a]
)
