(;AP[HexGui:0.10.GIT]
C[2020/07/11

Black\: Bian
White\: Peter

White wins.
]FF[4]GM[11]SZ[11]
;B[a2];W[f5];B[g5];W[i4];B[e5];W[e7];B[f7];W[g6];B[f6];W[f8];B[e8];W[g4]
;B[h4];W[i2];B[h3];W[h2];B[g3];W[g2];B[f3];W[f2];B[e3];W[e2];B[d3]
C[Peter\: oops, I forgot that a2 escapes 3rd row ladders! I thought it was only 2nd row.]
;W[d10];B[g8];W[f9];B[h8];W[b3](;B[d2]
C[Here, c3 would have been better, because b3 now escapes 2nd and 3rd row ladders, instead of just 2nd. See next variation.
]
;W[g7];B[c9];W[b11];B[a11];W[b10];B[resign])(;B[c3]
C[In this variation, Black wins, but must be careful.];W[g7];B[c10];
W[d9](;B[c9]C[This doesn't work for Black. See next variation.];W[d8](;
B[c8]
C[Pushing doesn't work. Yielding also doesn't work (see next variation).]
;W[d6];B[c6];W[c7];B[a8];W[b7];B[a7];W[b6];B[a6])(;B[b8]
C[It is too late to yield now.];W[c8];B[b9];W[c6]))(;B[b9]
C[This seems to be the only winning move for Black.];W[c9];B[b10];W[c8];
B[b8];W[resign])))
