(;GM[1]FF[4]SZ[19]
GN[Black connects (B9 at B1)]
PC[https://senseis.xmp.net/?GokyoShumyoSection6Problem52/Solution]AP[GoWiki:2009]
DT[2023-01-24]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection6Problem52/Solution

Black connects (B9 at B1)]
PL[B]

AB[da][db][hb][dc][hc][jc][dd][fd][id][if]
AW[cb][eb][cc][fc][ed][hd][be][ee][fe][ge][cf]

;B[fb]C[B1]MN[1]
;W[gb]C[W2]MN[2]
;B[fa]C[B3]MN[3]
;W[ga]C[W4]MN[4]
;B[gc]C[B5]MN[5]
;W[ea]C[W6]MN[6]
;B[ec]C[B7]MN[7]
;W[gd]C[W8]MN[8]
;B[fb]C[B9]MN[9]

;
)
