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

Black\: Bian
White\: Eric

Handicap\: 1

White wins.
]
FF[4]GM[11]SZ[11];B[a3];B[f6];W[d8];B[e8];W[f9];B[b10];W[c9]
C[White reestablishes a 2nd row ladder escape.];B[d10];W[g3];B[g4];W[h3]
;B[i3];W[h4];B[i4];W[f7];B[e7];W[h5];B[i5];W[h6];B[i6];W[h8];B[i8];
W[i10];B[j9];W[j10];B[h9]
C[Black could have foiled at i9. (There would have still been an escape at j2).]
;W[i7];B[k6]C[A wasted move, since White is connected anyway.];W[e4];
B[j7];W[j2];B[d5](;W[d3]
C[Losing move. 

d4 would have been winning, according to Mohex. See the next variation.
]
;B[d4];W[e3](;B[c4];W[c2];B[b2];W[b3];B[a4];W[b4];B[a5];W[b5];B[a6];
W[b6];B[a7];W[b7];B[a8];W[b9];B[resign])(;B[b4];W[c4];B[b5];W[c5];B[b6];
W[d7];B[d6];W[c6];B[b7];W[b8];B[c7];W[e6];B[e5]
C[Blunder. f4 would have been winning.];W[f5];B[resign]))(;W[d4];B[b5];
W[b4];B[c4];W[f4];B[c3]C[This move is necessary to foil d2.];W[c5];B[b6]
;W[c6];B[b7];W[b9];B[c7];W[d7];B[d6];W[e6]))
