(;GM[1]FF[4]SZ[19]
GN[Empty triangle again]
PC[http://senseis.xmp.net/?InvasionOfThirdLineThreeSpaceExtension]AP[GoWiki:2009]
DT[2011-10-26]
C[Diagram from http://senseis.xmp.net/?InvasionOfThirdLineThreeSpaceExtension

Empty triangle again]
PL[B]

AB[gq][kq]
AW[iq]
CR[iq]
LB[jp:a]

;B[hp]C[B1]MN[1]
;W[ip]C[W2]MN[2]
;B[io]C[B3]MN[3]
;W[kp]C[W4]MN[4]
;B[lp]C[B5]MN[5]
;W[ko]C[W6]MN[6]
;B[lo]C[B7]MN[7]

;CR[iq]
LB[jp:a]
)
