(;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[jb][jc][id][jd][ie]
AW[ib][ic][hd][he][hf]

;B[ia]C[B1]MN[1]
;W[ha]C[W2]MN[2]
;B[hb]C[B3]MN[3]
;W[ja]C[W4]MN[4]
;B[hc]C[B5]MN[5]

;
)
