(;AP[HexGui:0.10.GIT]
C[2022/02/11

Black\: Bian
White\: Eric

Handicap\: 0.5

White wins.]
FF[4]GM[11]PL[B]SZ[11];B[f6];W[f4];B[h4];W[h9];B[d8];W[g5](;B[g4]
C[Eric\:

Due to

https\://www.hexwiki.net/index.php/Theory_of_ladder_escapes#Examples_4

and

https\://www.mathstat.dal.ca/~selinger/templates/

, White is now winning.

(However, during the game, I was only mostly confident regarding the K-edge and figuring more-likely-than-not regarding the A-edge, although that was enough for me to prefer White after G4.)]
;W[f5]C[Eric\:

White only needs one of {A1,B1,C1},{C9,B10,A11} .];B[h5]
;W[g6];B[h6];W[g7];B[i7];W[g10];B[c5];W[e3];B[b5];W[d4];B[resign])(;
B[d5]C[Eric\:

I now think Black should've played here.]))
