(;AP[HexGui:0.10.GIT]
C[2021/09/24

Black\: Sarah
White\: Comonoid

No handicap.

White wins.
]
FF[4]GM[11]PL[B]SZ[11];B[b10];W[swap-pieces];B[f6];W[e6];B[g4];W[g3];
B[h3];W[i1](;B[h2]
C[Eric\:

I'm completely fine with Black not doing so, since White would probably get quite strong along the A-edge in return, but I'm still mentioning that, Black has enough room to connect with Tom's move.

https\://www.hexwiki.net/index.php/Parallel_ladder#2nd_and_4th_rows

See next variation.]
;W[h1];B[g2];W[g1];B[e2];W[f5];B[d6];W[e3];B[c4];W[d5];B[b6];W[c8](;
B[f2]C[Eric\: better b7, see next variation.];W[g5];B[b8]
C[Eric\:

This is bad, because if White responds at b9, b8 becomes completely useless.]
;W[c7];B[i4];W[h6](;B[resign]
C[Peter\: Black resigned, but still had some possibilities, such as d7.

See next variation.]
)(;B[d7](;W[d8]C[If White doesn't yield, Black likely wins.];B[e7];W[e8]
;B[g7]
C[Eric\:

https\://www.hexwiki.net/index.php/Pivoting_template#Example];
W[g8];B[f8];W[e10];B[h9];W[g9];B[i7];W[c6];B[e5];W[f4];B[e4];W[f3];B[d4]
;W[h7];B[j5])(;W[d9]
C[Peter\: If White yields, I initially thought Black loses (main variation in the following). But actually Black still wins (see Eric's variations).]
;B[d8](;W[c9](;B[e8];W[e9](;B[f8];W[f9];B[g8];W[g9];B[i8];W[h8];B[i7];
W[h7]
C[Eric\:


J6 is faster.  J5 is in-between in speed, and has a smaller carrier than J6.

(For that matter, White didn't actually need to use H6, due to J2.)]
;B[j5];W[i9];B[h9];W[g11];B[j10];W[i10];B[k8];W[j6])(;B[g8]
C[Eric\:  so does this];W[f8];B[g7];W[f7];B[g6];W[g9];B[h10];W[f9];B[i8]
;W[h8];B[i7];W[h7];B[j5]))(;B[f8]C[Eric\:

This wins for Black.];W[e8];
B[g6];W[g7];B[f7];W[f9];B[g8];W[g9];B[h10];W[e9];B[i8];W[h8];B[i7];W[h7]
;B[j5]))(;W[d10]C[Eric\:

This also reconnects to the A-edge,];B[f8]
C[Eric\:

but still loses to this.];W[e8];B[g6];W[g7];B[f7];W[f9];B[e10]
;W[e9];B[g8];W[g9];B[i8];W[h8];B[i7];W[h7];B[j5])(;W[f8]
C[Eric\:

White could alternatively try something like this or e8, but if I remember right, the threat of connecting to i4 is enough to get a switchback to g7.]
;B[e8];W[e9]
C[Eric\:

I don't remember how the ladder should play out, but blackG7 would connect.]
(;B[g7]
C[Eric\:

I don't remember how the ladder should play out, but this would connect.

Mohex\: See next variation for how it should play out.]
;W[f7];B[g6])(;B[c9];W[b11];B[c10];W[c11];B[d10];W[d11];B[e10];W[e11];
B[f10];W[f11];B[h10];W[g10];B[i8];W[h9];B[i9](;W[h8]
C[Or see next variation for g8.];B[i7];W[j5];B[h7];W[g8];B[g7];W[f7];
B[g6])(;W[g8];B[h8];W[g9];B[h7];W[g7];B[j5]))))))(;B[b7]
C[Eric\:

This captures the A1 corner (F2 or E4),  while also giving Black a forcing move at B10.]
))(;B[f4]
C[To prepare Tom's move, it's better to push first, to avoid creating a U-turm from e5 to f6.]
;W[f3];B[d3]C[Eric\:

https\://www.hexwiki.net/index.php/Tom%27s_move]))

