(;GM[1]FF[4]SZ[19]
GN[connect underneath]
PC[https://senseis.xmp.net/?GokyoShumyoSection6Problem63/Solution]AP[GoWiki:2009]
DT[2023-01-25]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection6Problem63/Solution

connect underneath]
PL[W]

AB[ab][bb][fb][cc][dc][ec][jc][dd][fd][gd][je][ff][gf][ig][gh]
AW[bc][fc][gc][hc][nc][ad][cd][ed][hd][qd][be][ce][de][ee][he]

;W[ha]C[W1]MN[1]
;B[fa]C[B2]MN[2]
;W[eb]C[W3]MN[3]
;B[db]C[B4]MN[4]
;W[kb]C[W5]MN[5]
;B[kc]C[B6]MN[6]
;W[lb]C[W7]MN[7]
;B[ib]C[B8]MN[8]
;W[jb]C[W9]MN[9]

;
)
