(;AP[Hexon:0.0]FF[4]GM[11]SZ[11]C[2022/02/11

Black\: Marietje
White\: Bian

Black wins.
]PL[B]
;B[a3]
;W[swap-pieces]
;B[h4]
;W[g6]
;B[d8]
;W[f5]
;B[e5]
;W[e6]
;B[h6]
;W[h5]
;B[j4]
;W[i7]
;B[j5]
;W[g8]
;B[g7]
(;W[f8]
 (;B[h8]
  (;W[h7]
   ;B[f7]
   ;W[c10]
   ;B[d9]
   ;W[d10]
   ;B[e9]
   ;W[e10]
   ;B[f9]
   ;W[f11]
   ;B[f10]
   ;W[e11]
   ;B[g10]
   ;W[g11]
   ;B[h10]
   ;W[h11]
   ;B[j10]
   ;W[j3]
   ;B[i4]
   ;W[h3]
   ;B[i3]
   ;W[j1]
   ;B[i2]
   ;W[i1]
   ;B[h2]
   ;W[h1]
   (;B[g2]
    ;W[g1]
    ;B[e2]
    ;W[f2]
    ;B[e3]
    ;W[f3]
    ;B[d5]
    ;W[resign])
   (;B[f2]C[Eric\:

This wins locally.]
    ;W[g2]
    ;B[f4]))
  (;W[g9]C[Eric\:


White should foil.

(G8+G9 is connected to the K-edge.)]))
 (;B[f7]C[Eric\:

This connects to the 11-edge, and so probably wins.]))
(;W[e9]C[Eric\:


This stops Black from getting a ladder along the 11-edge.

(for memorization\:  You "double-bridge" to the opponent's stone.)]))
