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

Black\: Peter
White\: Bian

Black wins.
]FF[4]GM[11]PL[B]
SZ[11];B[c2];W[f6];B[i8];W[g7];B[c6];W[c7];B[e6];W[d8];B[c8];W[c9]
C[Danger\: this is a 2nd row ladder escape for White, which Black did not see and White later used.]
;B[f7];W[g6];B[e7];W[e9];B[h7];W[f5];B[f8];W[d5];B[c4];W[e4];B[d6]
C[White is now winning, according to Mohex.];W[c5];B[a6];W[b6];B[a7];
W[b7];B[a8];W[b9];B[f4];W[e5]
C[Perhaps it would have been better to reconnect at g8. Nevertheless, White is still winning.]
;B[j4](;W[i7]
C[Losing move. Both i4 and i6 were winning, see next variation.];B[j7];
W[j5];B[i5];W[g10];B[g9];W[f10];B[h9];W[h10];B[j9];W[j3];B[h4];W[resign]
)(;W[i4]C[Winning.];B[j3];W[i6]))
