(;AP[Hexon:0.0]FF[4]GM[11]SZ[11]C[2022/09/09

Black\: Thomas
White\: Frank

Handicap\: 0.5

White wins.]PL[B]
;B[f6]
;W[d9]
;B[i8]
;W[i9]
;B[h9]
;W[g5]
;B[f5]
;W[e4]
;B[g4]
;W[i3]
;B[h2]
;W[f7]
(;B[h5]C[Peter\: Better g6, see next variation?]
 ;W[h6]
 ;B[i5]
 ;W[g6]
 ;B[h4]
 ;W[i6]
 ;B[e7]
 ;W[d10]
 ;B[c9]C[Peter\: White now has several ways of connecting. One is to push the 4th row ladder and use e4 as a ladder escape. While e4 does not normally escape 4th row ladders, it does so in the presence of a foldback threat.

Even without e4, White can win by parallel ladder and Tom's move.]
 ;W[d8]
 (;B[b8]C[Peter\: Now White's easiest win is b11 and b9, in either order.

See next variation for what happens if Black does not yield.]
  ;W[b9]
  ;B[c8]
  ;W[b11]
  ;B[a11]
  ;W[b10]
  ;B[resign])
 (;B[c8]
  ;W[d7]
  ;B[c7]
  ;W[d6]
  ;B[c6]
  ;W[d3]))
(;B[g6]
 ;W[g7]
 ;B[i6]
 ;W[h6]
 ;B[j4]C[Peter\: double threat k2 and i4.]))
