(;AP[HexGui:0.10.GIT]
C[2021/10/22

Black\: Marietje
White\: Frank

Handicap\: 0.5

White wins.
]
FF[4]GM[11]PL[B]SZ[11];B[h7];W[h9];B[c5];W[d3];B[h4];W[h5];B[i4];W[h6];
B[f5];W[e7]C[Eric\: good];B[c8];W[b10]
C[Eric\:

I think White shouldn't do this, since although White will want a ladder escape for D3, White will get one anyway from Black connecting C5 to C8.

(I would either play D6 directly or play D9 instead of B10.)]
;B[d9];W[d6];B[b7];W[e4](;B[g6]
C[Eric\: Better i8 or i9, see next variation.];W[f8];B[g7]
C[Eric\:

Now I can prove that White wins.  White kept this win for the rest of the game.

Black could have still tried foiling, with i8 or i9.]
;W[g9];B[c3];W[b6];B[c6];W[c4];B[j8]
C[Eric\:

Now White wins even if it's Black's turn again.  (i7 or i10)];
W[i10];B[j10];W[j9];B[resign])(;B[i8]
C[Eric\:

White can make sure e7 connects to either h6 or h9, so Black is going to have to try foiling.  I think Black should start now, with this or i9, rather than letting White get closer to h9 first.]
))
