(;AP[HexGui:0.10.GIT]
C[2020/07/24

Black\: Peter
White\: Bian

Black wins.]FF[4]GM[11]SZ[13];
B[c12];W[swap-pieces];B[d5];W[g7];B[e9];W[e8];B[f7];W[f8];B[i6];W[h8];
B[i8];W[i7];B[k6];W[j6]
C[If Black tries to block at k5, White can just zipper via j4 and h5.];
B[i4];W[j5];B[c9];W[d7];B[c7];W[b11];B[e7];W[d8];B[l5];W[j7]
C[White maintains 2nd and 3rd row ladder escapes along the M-edge. ];
B[b8]C[Black blocks, and White starts the expected zipper.];W[d10];
B[c11];W[c10];B[d9];W[e10];B[f9];W[f10];B[g9](;W[g10];B[h9](;W[h11];
B[j10];W[i9];B[h10];W[g12];B[k9]
C[Black is connected to the 13-edge by template and double threat.];
W[l9];B[i11];W[h13];B[j12];W[j11];B[k11];W[e3];B[f4];W[g3];B[f3];W[g1];
B[j2];W[resign])(;W[h10]C[Alternative ending, winning for White.];B[k9](
;W[j10]C[White maintains the win.];B[j9];W[j8];B[i9];W[i10]
C[Losing move. k10 was winning.];B[k10];W[k11];B[j11])(;W[j9](;B[l7];
W[k8])(;B[k8];W[j8];B[k4];W[k3];B[j4](;W[j2])(;W[h3])(;W[i3];B[j3];W[k1]
;B[j2];W[j1];B[g3];W[h2];B[f4];W[g1];B[g2];W[h1];B[e2];W[h4];B[i2];W[k7]
;B[m6];W[l7];B[m7];W[l10];B[l9];W[j11];B[j10];W[h12];B[h11];W[g12];
B[g11];W[f12];B[f11];W[e12];B[e11];W[d12];B[d11];W[b13])))))(;W[g11]
C[Eric\: I would perhaps have yielded here.];B[g10];W[f12]
C[Mohex\: winning for White](;B[i10];W[h12];B[k9];W[j11];B[resign])(;
B[j10];W[h10];B[h9];W[j9];B[l8];W[j8];B[l7];W[k4])))
