(;GM[1]FF[4]SZ[19]
GN[Failure]
PC[https://senseis.xmp.net/?GokyoShumyoSection6Problem39/Solution]AP[GoWiki:2009]
DT[2023-01-22]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection6Problem39/Solution

Failure]
PL[W]

AB[dc][cd][gd][hd][jd][kd][df][hf][jf][fg]
AW[ec][fc][jc][kc][lc][fe][ge]

;W[hb]C[W1]MN[1]
;B[ib]C[B2]MN[2]
;W[ic]C[W3]MN[3]
;B[gb]C[B4]MN[4]

;
)
