(;AP[Hexon:0.0]FF[4]GM[11]SZ[11]C[2023/07/14

Black\: Eric
White\: Thomas

Black wins.
]PL[B]
;B[b4]
;W[swap-pieces]
;B[h4]
;W[h2]
;B[i2]
;W[g6]
;B[i5]
;W[g8]
;B[d8]
;W[e7]
;B[d7]
;W[e6]
;B[d6]
;W[e4]
;B[e5]
;W[g4]
;B[f4]
;W[g2]
;B[h3]
;W[d10]
;B[c10]
;W[d9]
;B[h8]
;W[i6]
;B[h6]
;W[h7]
;B[g7]
;W[e8]
;B[b8]
;W[g3]
;B[b3]C[Eric\:

Extensive analysis with ghosts shows that this wins for Black, even if Black had played C9 instead of B8, and even with B8, this is the only move for Black that wins the A1 half of the board.]
;W[c5]
;B[f3]
;W[f1]
;B[f2]
;W[g1]
;B[e2]
;W[e1]
;B[c4]
;W[d3]
;B[d4]
;W[resign])
