(;AP[HexGui:0.10.GIT]
C[2023/03/03

Black\: Peter
White\: Jack

Black wins.
]FF[4]GM[11]SZ[11]
;B[b4];W[swap-pieces];B[h4];W[d8];B[i8];W[i9];B[h9];W[h7];B[f7];W[g5];
B[e6];W[f4];B[e4](;W[f3]
C[Peter\: This is a mistake. See the next variation for how White should have played.]
;B[e3];W[e5];B[c6];W[d5];B[c5];W[c3];B[c4];W[f1];B[f2];W[g1];B[g2];W[h1]
;B[i2];W[d9];B[g7];W[h3];B[i3];W[f9];B[c7](;W[c10]
C[Jack\: Would e10 have been better? 

Peter\: Better, but still losing. See the next variation.]
;B[g8];W[g9];B[h8];W[g11];B[e10];W[resign])(;W[e10];B[j7];W[g8];B[i6];
W[h6];B[i5]))(;W[e5];B[c6];W[e3]C[Peter\: 4th-to-6th row switchback.];
B[d4];W[f3];B[d3];W[e2];B[b3];W[c3];B[b4];W[c5];B[a6];W[b6];B[a7];W[b7];
B[a8];W[b8];B[a9];W[b10]
C[Peter\: By pivoting here, rather than at b9, White can avoid giving Black a 2nd row ladder escape.]
;B[b9];W[c9];B[c8];W[d7];B[i5];W[j6];B[h6];W[g7];B[g6];W[e9];B[f8];
W[f10];B[f9];W[e10];B[g9];W[g11]))
