(;GM[1]FF[4]SZ[19]
GN[follow-up]
PC[http://senseis.xmp.net/?33PointInvasionQuery5a]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?33PointInvasionQuery5a

follow-up]
PL[B]

AB[eb][dc][fc][dd][ce][cf][bg][cg]
AW[cb][db][cc][cd][be][bf]
CR[bg]

;B[af]C[B1]MN[1]
;W[ad]C[W2]MN[2]
;B[da]C[B3]MN[3]
;W[ab]C[W4]MN[4]

;CR[bg]
)
