(;AP[HexGui:0.10.GIT]
C[2020/10/02

Black\: Peter
White\: Bian

Black wins.
]FF[4]GM[11]SZ[11]
;B[a3];W[swap-pieces];B[h7];W[h8];B[g8];W[f6];B[h4];W[h5];B[i7];W[h6];
B[d6]
C[This move is a miscalculation, because it gives White a 3rd row ladder, which the a3 can switch back to a 5th row ladder. e6 might have been better.]
;W[d7];B[e6];W[e7];B[b8];W[b9];B[i4];W[j5];B[c8];W[c9];B[d8];W[d9];B[e8]
;W[f10];B[f9];W[e9];B[f7];W[e10];B[h9];W[c7];B[b7];W[c6];B[b6];W[c5];
B[b5];W[d2];B[c2];W[d1];B[c3](;W[d3]
C[Losing move. To execute the switchback, White had to move at b4 (see next variation).]
;B[c4];W[b2];B[d4];W[e3];B[f4];W[resign])(;W[b4]C[Winning for White.];
B[c4];W[e3];B[d4];W[e4]))
