(;GM[1]FF[4]SZ[19]
GN[Black to play and connect underneath]
PC[http://senseis.xmp.net/?GokyoShumyoSection6Problem5/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection6Problem5/Attempts

Black to play and connect underneath]
PL[B]

AB[cb][eb][gb][cc][gc][hc][ic][dd][hd][he][cf][hf]
AW[ea][db][hb][ec][jc][fd][kd][ge][ef][jf][ig][eh][gh]
LB[gd:a][gg:b]

;B[ed]C[B1]MN[1]
;W[fc]C[W2]MN[2]
;B[fb]C[B3]MN[3]
;W[dc]C[W4]MN[4]
;B[fe]C[B5]MN[5]
;W[ee]C[W6]MN[6]
;B[ff]C[B7]MN[7]
;W[gf]C[W8]MN[8]
;B[fg]C[B9]MN[9]

;LB[gd:a][gg:b]
)
