(;AP[HexGui:0.10.GIT]
C[2020/10/09

Black\: Eric
White\: Bian

Handicap\: -1

Black wins]FF[4]
GM[11]PL[B]SZ[12];B[c2];W[f4];W[g7];B[h5];W[i10];B[h8];W[g9];B[h9];
W[g11];B[d10];W[f8];B[e8];W[d11];B[c11];W[e9];B[c8];W[d6];B[c5];W[b8];
B[b6];W[c7];B[e6];W[d7];B[d8](;W[e4]
C[f6 would have been better; see next variation.];B[f6];W[resign]
C[Black threatens a wheel at g4 and therefore gets at least a 3rd row ladder.]
)(;W[f6]C[f6 variation.];B[e7](;W[g5]
C[This doesn't work because Black can connect via e5.

f3 is better; see next variation.]
;B[e5])(;W[f3])))
