(;GM[1]FF[4]SZ[19]
GN[White to play and connect underneath]
PC[https://senseis.xmp.net/?GokyoShumyoSection6Problem51/Solution]AP[GoWiki:2009]
DT[2023-01-23]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection6Problem51/Solution

White to play and connect underneath]
PL[W]

AB[ha][db][hb][dc][fc][hc][jc][ed][id][ie][ef][ff][hf][fg]
AW[ga][cb][gb][cc][gc][cd][dd][gd][hd][cf][df][eg][eh][fh]

;W[eb]C[W1]MN[1]
;B[ea]C[B2]MN[2]
;W[fa]C[W3]MN[3]
;B[da]C[B4]MN[4]
;W[ee]C[W5]MN[5]
;B[fe]C[B6]MN[6]
;W[fd]C[W7]MN[7]
;B[de]C[B8]MN[8]
;W[ec]C[W9]MN[9]
;B[fb]C[B10]MN[10]

;
)
