(;AP[HexGui:0.10.GIT]
C[2022/01/14

Black\: Sarah
White\: Marietje

Black wins.]FF[4]GM[11]
PL[B]SZ[11];B[b9];W[swap-pieces];B[g3];W[f6];B[e6];W[d9];B[c9];W[d7];
B[e7];W[e8];B[d8];W[b11];B[c10](;W[c11]
C[Eric\: White should have probably tried f5 here. See next variation.](
;B[a11]
C[At this point, Black might have a pretty good climbing opportunity from the c10 ladder, see next variation.]
;W[b10];B[a10];W[b9];B[a9];W[b8];B[a8](;W[b7]
C[Peter\: my first instinct here was to climb from b6, see next variation.]
;B[a7];W[c4]C[But this cornering may actually be better!];B[b5](;W[c3]
C[Better\: d4, see next variation.];B[c5];W[e4];B[f5];W[d6];B[d10];
W[d11];B[f10];W[e10];B[f9];W[e9];B[g7];W[f7];B[h5];W[g4];B[i3]
C[Black is definitely connected.];W[i4];B[g5];W[f4];B[h4];W[h3];B[j2];
W[resign])(;W[b6];B[a6];W[d3];B[c5];W[e4](;B[d6]
C[Note that this is forced (assuming Black wants to disconnect e4 from the b11 group).

However, that may not be in Black's best interest; probably it's better to play f5 and then climb, see next variation.

And that is more or less what happened in the actual game.]
;W[f5])(;B[f5];W[d6];B[d10];W[d11];B[f10];W[e10];B[f9];W[e9];B[g7];W[f7]
;B[h5];W[g5];B[i3];W[h3];B[j2])))(;W[b6];B[b7];W[d5];B[d6];W[f4]
C[This looks pretty good for White?];B[g4];W[f5];B[g6];W[f7];B[g7];W[g5]
;B[i4];W[h5];B[i5];W[h6];B[i6];W[h8]
C[Note that h8 is connected to the k-edge because of the ladder escape fork at j2.]
;B[h7];W[f9]))(;B[d10];W[d11];B[f10];W[e10];B[f9];W[e9];B[g7];W[f7];
B[h5];W[h4];B[g5]
C[Not sure if this is good enough for Black yet, but it seems ok.];W[g4]
;B[f5];W[f4];B[d5];W[d4];B[e4];W[f2];B[e3];W[e2];B[d3];W[d2];B[b3];W[c3]
;B[b4];W[c4];B[b5];W[c5];B[b6];W[c6];B[b7];W[c8];B[a9];W[b9];B[a10];
W[b10];B[a11]C[It looks like it could work.]))(;W[f5];B[e5];W[c11];
B[d10];W[d11];B[f10];W[e10];B[f9];W[e9];B[g7];W[f7];B[h5];W[h4]
C[Now Black's climb doesn't connect. This looks good for White...];
B[a11];W[b10];B[a10];W[b9];B[a9];W[b8];B[a8];W[b7];B[a7];W[c4];B[b5];
W[b6];B[a6];W[d3];B[c5];W[e4]))
