(;AP[Hexon:0.0]FF[4]GM[11]SZ[11]C[2023/02/10

Black\: Frank
White\: Marietje

Black wins.
]PL[B]
;B[a9]
;W[f6]
;B[h7]
;W[i3]
;B[d5]
;W[d6]
;B[c6]
;W[c7]
;B[e6]
;W[f3]
;B[f4]
;W[g3]
;B[e4]
(;W[d2]C[Perhaps d3 is better? See next variation. But Black still wins.]
 ;B[c4]
 (;W[c3]C[Eric\: Better b3, see next variation.]
  ;B[b4]
  ;W[d1]
  ;B[e2]
  ;W[f5]
  ;B[e5]
  ;W[e7]
  ;B[c8]
  ;W[d7]
  ;B[a8]
  ;W[b10]
  ;W[resign])
 (;W[b3]C[Eric\:


This would've stopped Black from foiling.

(As a result, Black's semi-connection from C6 to A9 would require B8.)]))
(;W[d3]
 ;B[e3]
 ;W[f1]
 ;B[e2]
 ;W[e1]
 ;B[c2]
 ;W[d2]
 ;B[b4]
 ;W[c5]
 ;B[a6]
 ;W[b6]
 ;B[a7]
 ;W[b7]
 ;B[a8]
 ;W[b10]
 ;B[c8]
 ;W[d9]
 ;B[c10]
 ;W[c9]
 ;B[e7]
 ;W[f8]
 ;B[g6]
 ;W[f7]
 ;B[h4]
 ;W[g4]
 ;B[h3]
 ;W[i1]
 ;B[h2]
 ;W[h1]
 ;B[g2]
 ;W[g1]
 ;B[f2]))
