(;AP[HexGui:0.10.GIT]
C[2020/11/20

Black\: Bian
White\: Frank

Black wins.

Comments by Eric, some in variations.]
FF[4]GM[11]PL[B]SZ[11];B[a2];W[d8];B[f7];W[f6];B[h5];W[g8](;B[f8];W[f9];
B[e9];W[g6];B[h7];W[g7];B[i8];W[h6];B[j5];W[i7];B[h8];W[i6];B[k6];W[j7];
B[k7];W[i4]
C[Eric\:

White playing this instead of J4 means Black can get a height-3 escape in the K1 corner.]
;B[i5];W[i10];B[j8];W[h4];B[e6](;W[f5];B[e7];W[e5];B[c6](;W[d6];B[c7];
W[d7];B[b9](;W[b8];B[c8];W[b10];B[c9];W[c10];B[d9];W[d11];B[e10](;W[e11]
;B[f10];W[f11];B[h10];W[d3];B[d4];W[e3];B[e4];W[f3];B[g4];W[g5];B[f4];
W[h3];B[g3];W[h1]
C[Eric\:

Now Black wins even if it's White's turn again.];B[g2];
W[g1];B[h2];W[i1];B[j2];W[i2];B[k3];W[resign])(;W[f10]
C[Eric\:

This is equivalent to if White played here on move 36.]))(;
W[f10]C[Eric\:

I'm pretty sure this wins for White.]))(;W[c10]
C[Eric\:

I think White should play this while there's still more room on the left.]
))(;W[f10]C[Eric\:

interesting try for White]))(;B[e9]C[better]))
