(;AP[HexGui:0.10.GIT]
C[2020/06/26

Black\: Frank
White\: Peter

White wins.]FF[4]GM[11]SZ[11]
;B[a3];W[swap-pieces];B[g4];W[f4];B[b3];W[h2];B[g3];W[d4];B[c5];W[c3];
B[d3];W[c4];B[a5];W[c6];B[b6];W[b7];B[d5];W[e3];B[a2]
C[Note that g3 is already connected to the K-edge, because d5 escapes a 3rd-row ladder from g3.]
;W[d6];B[f6];W[f5]
C[Bad move by White; this actually ends up strengthening Black's position.]
;B[g5];W[f7];B[e7];W[d9]C[Now g8 is winning for Black.];B[c9];W[d10]
C[This foils the threat of g8, which is now no longer winning for Black (according to Mohex). 

However, the overall position is still winning for Black, with h6 being a winning move (according to Mohex).]
;B[g8];W[g9];B[h9];W[g10];B[e10]
C[A losing move for Black under best play. 

h6 or h8 would have been winning; i8 would have been losing under best play.]
;W[h6];B[e8];W[e9];B[i6];W[i7]
C[While kept the win until here, but this is a losing move for White!

Black f8 is now winning via a series of force moves and zippering along the K-edge.

Conversely, f8 would have been winning for White.]
;B[f9]
C[This move returns the win to White. White now keeps it until the end of the game.]
;W[f8];B[g7];W[g6];B[j7];W[i5];B[d7];W[b11];B[resign])
