(;GM[1]FF[4]SZ[19]
GN[How should Black handle this?]
PC[http://senseis.xmp.net/?BeginnerSQuestionAboutInvasion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerSQuestionAboutInvasion

How should Black handle this?]
PL[W]

AB[dd][ed][fd][gd][hd][de][df][dg]
AW[ee][fe][ge][he][ef][eg]
LB[bb:c][cb:b][db:b][bc:c][cc:b][dc:b][fc:a]

;W[fb]C[W1]MN[1]

;LB[bb:c][cb:b][db:b][bc:c][cc:b][dc:b][fc:a]
)
