(;AP[HexGui:0.10.GIT]
C[2021/11/05

Black\: Marietje
White\: Eric

Handicap\: 1

White wins.
]
FF[4]GM[11]PL[B]SZ[11];B[a4];W[swap-pieces];B[i3];B[h7];W[h2];B[j2]
C[Eric\:

J3 was strictly better.];W[h9];B[g9]
C[Eric\:

White has an escape for height-3 ladders into this corner, and Black doesn't.  Even though Black has a connection here and White doesn't, which is certainly more important, that's not _enough_, since Black played 1 more move in this corner than White.  Black should've played a joseki here; i9 is the default.

https\://www.hexwiki.net/index.php/Joseki]
;W[g8]
C[Eric\:

I would normally not play this.  However, I am giving handicap here, so I'm hoping that Black will defend the bridge and _still_ let me escape whatever ladder goes into this corner.]
;B[h8];W[h5];B[i5];W[h6]
C[Eric\:

h9 escapes height-2 ladders, so I could've connected with with i4, but - this being a handicap game - I am hoping Black does not defend correctly here.  The variation for the next move shows the correct attack and defense from here.]
(;B[i6];W[i4];B[k3];W[j4];B[k4];W[j5];B[k5];W[j6];B[k6];W[i8];B[j7];
W[i7];B[j8];W[i10];B[h10];W[i9];B[f5];W[g4];B[e4];W[e3];B[f3];W[g1];
B[f2];W[f1];B[e2];W[e1](;B[b2]
C[Eric\:

This lets White win locally, but White was winning anyway, since H6 is enough for White to get a switchback.  (variation)]
;B[resign])(;B[c2];W[c1];B[a2];W[b2];B[a3];W[b3];B[a4];W[b4];B[a5];W[b5]
;B[a6];W[b6];B[a7];W[b7];B[a8];W[b9];B[b8];W[d8];B[f7];W[d7]))(;B[j5]
C[Eric\:

This is the only move to stop H5+H6 from connecting to the K-edge.]
;W[i6];B[j6];W[i7];B[k7]
C[Eric\:


This is the only move to stop i7 from connecting to the k-edge.

Black must pull White away from H9, since otherwise White connects with  https\://www.hexwiki.net/index.php/Edge_template_IV2b .]
;W[j9]
C[Eric\:

White can exchange J7 for K6 first, but this is the only move to stop K7 from connecting to the 11-edge.]
;B[j8];W[g10];B[i8]
C[Eric\:

Black gets a height-3 ladder along the 11-edge.]))
