(;GM[1]FF[4]SZ[19]
GN[White to play and connect. A difficult problem, it will turn into a ko fight]
PC[https://senseis.xmp.net/?GokyoShumyoSection7Problem12]AP[GoWiki:2009]
DT[2023-01-25]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection7Problem12

White to play and connect. A difficult problem, it will turn into a ko fight]
PL[W]

AB[ib][nb][ob][hc][mc][nc][kd][he][ke][me][kf][hg][mg][og][ih][ji][mi][kj][lj][oj][nk]
AW[lb][mb][pb][jc][kc][lc][oc][pc][jd][je][oe][jf][pf][jg][kg][pg][oh][ph][ki]


;
)
