(;GM[1]FF[4]SZ[19]
GN[Though shape]
PC[http://senseis.xmp.net/?Cornershapes/Discussion]AP[GoWiki:2009]
DT[2011-07-10]
C[Diagram from http://senseis.xmp.net/?Cornershapes/Discussion

Though shape]
PL[B]

AB[gb][ec][fc][gc][dd][ce][de][bf][cg]
AW[db][dc][bd][cd][be]


;
)
