(;AP[Hexon:0.0]FF[4]GM[11]SZ[11]C[2023/02/10

Black\: Mason
White\: Frank

Black wins.
]PL[B]
;B[a11]
;W[swap-pieces]
;B[d8]
;W[d3]
;B[c3]
;W[c4]
;B[g4]
;W[g8]
;B[h8]
;W[g9]
;B[i9]
;W[h10]
;B[i10]
;W[h9]
;B[i8]
;W[h7]
;B[j6]
;W[i5]
;B[j3]
;W[k4]C[Mason\: maybe i2 is a better response.]
;B[h6]
;W[i6]
;B[e5]
;W[e6]
;B[f6]
;W[e7]
;B[f7]
;W[e9]
;B[b10]
;W[e8]
;B[c7]
;W[d6]
;B[c6]
;W[d5]
;B[c5]
;W[e2]
;B[d4]
(;W[e4]C[Peter\: With hindsight, maybe White could have played f3, as in the next variation.]
 ;B[e3]
 ;W[f2]
 ;B[f3]
 ;W[g2]
 ;B[i2]
 ;W[g3]
 ;B[f4]
 ;W[h3]
 ;B[i4]
 ;W[resign])
(;W[f3]
 ;B[e4]
 ;W[h2]
 ;B[i2]
 ;W[h3]
 ;B[i4]
 ;W[h4]
 ;B[h5]
 ;W[f5]))
