(;AP[HexGui:0.10.GIT]
C[2020/11/27

Black\: Sarah
White\: Bian

Handicap\: 1.5

Black wins.
]
FF[4]GM[11]PL[B]SZ[11];B[g4];B[f6];W[e9];B[g8];W[g5];B[f5];W[g7];B[e8];
W[d9]C[Perhaps foiling at d10 would have been better.];B[f8];W[g9];B[f9]
;W[e7];B[f7];W[e11];B[e10];W[d11](;B[h8]
C[Black could have zippered from b10, see next variation.];W[h9];B[f10];
W[f11];B[d10];W[c11];B[b10];W[g3];B[c10];W[h3];B[e4];W[e5];B[f4];W[e3];
B[f3];W[g1];B[f2];W[f1](;B[d2]
C[In addition to this win along the a-edge, Black also had a zipper along the k-edge available, see next variation.]
;W[d1];B[e1];W[e2](;B[c4];W[d4];B[c5];W[d5];B[b7];W[b8](;B[c7];W[a11];
B[b11];W[d7];B[c8];W[resign])(;B[d6]
C[This move lets White connect to the a-edge at c6.]))(;B[d3]
C[This move lets White connect to the a-edge via d4.]))(;B[g2]
C[An alternative win for Black.];W[h1];B[h2];W[i1];B[j2];W[i2];B[i4];
W[h4];B[h6];W[g6];B[h7]))(;B[d10]
C[Variation\: an easy zipper for Black.];W[c11];B[b10];W[c10];B[c8];
W[d8];B[d6]))
