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

Black\: Sarah
White\: Frank

Handicap\: 0.5

White wins.
]
FF[4]GM[11]PL[B]SZ[11];B[f6];W[d9];B[f8];W[f9];B[e9];W[d11];B[d10];
W[c11];B[b10];W[c10];B[c8];W[b9];B[c9];W[d6](;B[d7]
C[Eric\: better e7, see next variation.];W[f5];B[h4];W[g5];B[h5];W[g6];
B[h6];W[f10]
C[Peter\: e6 is now winning for Black, see 2nd variation on the next move. It will remain winning until the end.]
(;B[i8];W[h9];B[j9];W[h7];B[j6];W[i6];B[j5];W[i3];B[j2];W[j3];B[g3];
W[i5];B[g7];W[e7](;B[resign]
C[Black resigns, but e6 was still winning. See next variation.])(;B[e6];
W[f7];B[e5]))(;B[e6];W[f4];B[g7];W[h3];B[i3];W[j1];B[i2];W[i1];B[h2];
W[h1];B[f3];W[g2];B[g3];W[f2];B[d3];W[e3];B[c5];W[b7];B[d5];W[e5];B[e4])
)(;B[e7]
C[Eric\:


This captures D7 (and F7, E8, D8).

https\://www.hexwiki.net/index.php/Captured_cell#Examples]
))
