(;GM[1]FF[4]SZ[19]
GN[Black to play and connect underneath]
PC[http://senseis.xmp.net/?GokyoShumyoSection6Problem30]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection6Problem30

Black to play and connect underneath]
PL[B]

AB[da][db][dc][hc][jc][dd][fd][ce]
AW[bb][cb][eb][fc][bd][gd][be][fe][ef][cg]


;
)
