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

Empty Triangles]
PL[B]

AB[cb][cc][dc][ce][de][cf]
AW[gc][gd][ge][df]


;
)
