(;GM[1]FF[4]SZ[19]
GN[Black connects]
PC[https://senseis.xmp.net/?GokyoShumyoSection6Problem41/Solution]AP[GoWiki:2009]
DT[2023-01-25]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection6Problem41/Solution

Black connects]
PL[B]

AB[db][hb][dc][hc][dd][gd][ce][cf][cg]
AW[gb][fc][kc][ed][jd][de][he][df][ff][dg]

;B[fb]C[B1]MN[1]
;W[fa]C[W2]MN[2]
;B[eb]C[B3]MN[3]
;W[gc]C[W4]MN[4]
;B[fd]C[B5]MN[5]

;
)
