(;AP[Hexon:0.0]FF[4]GM[11]SZ[11]C[2023/01/13

Black\: Eric
White\: Sarah

Handicap\: -1

Black wins.
]PL[B]
;B[k4]
;W[f6]
;W[i9]C[Eric\:

K4 is relevant, but I still think H9 would've been better than this.

https\://www.hexwiki.net/index.php/Corner_move]
;B[h6]
;W[g7]
;B[d8]
;W[d7]
;B[c8]
;W[c6]C[Eric\:

I think White should've played D3 instead,

https\://www.hexwiki.net/index.php/Corner_move

and

https\://www.hexwiki.net/index.php/Ladder_escape

since that corner is wide open and White still gets a height-4 ladder along the A-edge.]
;B[g6]
;W[g5]C[Eric\:

I guess I think White should've tried H2, or something more defensive, since I don't see any way for White to stop G6+H6 from connecting to the 11-edge.]
;B[i4]
;W[f7]
;B[h7]C[Eric\:

I now have a template near J2, so I connect to the 1-edge by pushing at height 4, followed by Tom's move.

However, I'm not _quite_ sure that C8+D8 escapes height-4 ladders, so I think White should've tried G9.

Peter\: Yes, it escapes them. See https\://www.hexwiki.net/index.php/Theory_of_ladder_escapes#Examples_3
]
;W[g8]C[Eric\:

Now I (Black) have a proven win that I know how to carry out.  I keep this win for the rest of the game.]
;B[h8]
;W[g9]
;B[h9]
;W[g11]
;B[g10]
;W[f11]
;B[f10]
;W[e11]
;B[e10]
;W[d11]
;B[d10]
;W[c11]
;B[b10]
;W[resign])
