(;GM[1]FF[4]SZ[19]
GN[Black to play and connect underneath]
PC[http://senseis.xmp.net/?GokyoShumyoSection6Problem23]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection6Problem23

Black to play and connect underneath]
PL[B]

AB[cb][gb][cc][gc][ic][dd][gd][ce][ge][cf][ef][ch]
AW[db][ib][dc][fc][jc][fd][jd][ee][df][ff][if][gg][eh]


;
)
