(;GM[1]FF[4]SZ[19]
GN[Mistake]
PC[http://senseis.xmp.net/?EmptyTriangleAgainstFirstLineHane]AP[GoWiki:2009]
DT[2014-04-29]
C[Diagram from http://senseis.xmp.net/?EmptyTriangleAgainstFirstLineHane

Mistake]
PL[B]

AB[hb][jb][jc][id][jd][ie]
AW[ha][ja][ib][ic][hd][he][hf]

;B[hc]C[B5]MN[5]
;W[ia]C[W6]MN[6]
;B[ga]C[B7]MN[7]

;
)
