(;AP[HexGui:0.10.GIT]
C[2020/07/10

Black\: Bian
White\: Joachanna

Black wins.
]FF[4]GM[11]
SZ[11];B[a2];W[f6];B[f7];W[g6];B[d7];W[d5];B[e5];W[f3];B[e4];W[e3];B[g4]
;W[h2];B[c4];W[d4];B[c6];W[c5];B[a6];W[b6];B[a7];W[b7];B[a8];W[b8];B[a9]
;W[b10];B[b9];W[d9];B[c10];W[c9]
C[Both players seem to overlook c8 from here on.];B[e8];W[e9];B[g8];
W[f10];B[h9];W[g11];B[i10];W[c2]
C[Possible White connections to the A-edge would have been b2, a ladder escape fork, and c8. Since both are available, White is already connected, so i3 would have been an easy winning move for White.]
;B[i3];W[j1];B[k1];W[j2];B[k2];W[j3];B[k3];W[j4];B[k4];W[j6];B[j5];W[i6]
;B[i5]C[Tactics puzzle\: White to move and win!
](;W[h4]
C[Losing move.

See the next variation for what would have been White's winning move!]
;B[h6];W[g7];B[h7];W[h11];B[i11];W[g9];B[h8];W[h10];B[i9])(;W[g7]
C[Winning!];B[f8];W[h4]))
