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

[empty triangle\]]
PL[W]

AB[hg][kg][gh][kh][kj][gk][hk][ik]
AW[ig][jg][gi][ii][gj][ij]

;W[ji]C[W1]MN[1]

;
)
