(;GM[1]FF[4]SZ[19]
GN[Black to play and connect underneath]
PC[http://senseis.xmp.net/?GokyoShumyoSection6Problem53]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection6Problem53

Black to play and connect underneath]
PL[B]

AB[ac][bc][cc][dc][ec][fc][he][ff][gf][eg][ch][dh][fh][cj]
AW[fa][bb][cb][gb][gc][cd][ed][fd][hd][fe][df][bg][dg]


;
)
