(;GM[1]FF[4]SZ[19]
GN[Black to play and connect underneath]
PC[http://senseis.xmp.net/?GokyoShumyoSection6Problem1/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection6Problem1/Attempts

Black to play and connect underneath]
PL[W]

AB[eb][hb][cc][fc][gc][dd][hd][de][ee][fe][he][df][gf]
AW[ib][jb][ec][ed][fd][gd][jd][ge][ef][ff][hf][jf][gg][hg]
SQ[gf]

;W[fb]C[W1]MN[1]
;B[dc]C[B2]MN[2]
;B[db]C[B4]MN[4]
;W[gb]C[W5]MN[5]
;B[hc]C[B6]MN[6]
;W[ha]C[W7]MN[7]
;B[ga]C[B8]MN[8]
;W[fa]C[W9]MN[9]
;B[ea]C[B10]MN[10]

;SQ[gf]
)
