(;GM[1]FF[4]SZ[19]
GN[White extends]
PC[https://senseis.xmp.net/?44Point33InvasionExtension]AP[GoWiki:2009]
DT[2019-12-30]
C[Diagram from https://senseis.xmp.net/?44Point33InvasionExtension

White extends]
PL[W]

AB[dc][dd][de][df]
AW[cc][cd][cf]

;W[cg]C[W1]MN[1]
;B[ce]C[B2]MN[2]
;W[be]C[W3]MN[3]
;B[bf]C[B4]MN[4]
;W[bd]C[W5]MN[5]
;B[ch]C[B6]MN[6]
;W[bg]C[W7]MN[7]
;B[dg]C[B8]MN[8]
;W[bh]C[W9]MN[9]

;
)
