(;GM[1]FF[4]SZ[19]
GN[Black connects]
PC[https://senseis.xmp.net/?GokyoShumyoSection6Problem43/Solution]AP[GoWiki:2009]
DT[2023-01-25]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection6Problem43/Solution

Black connects]
PL[B]

AB[db][hb][ib][dc][ic][dd][ed][id][ie][hf][if]
AW[bb][gb][bc][ec][hc][hd][ce][ee][fe][he][gf][cg]

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

;
)
