(;AB[cb]AB[cc]AB[cd]AB[bd]AW[be]AW[ae]AW[ce]AW[de]AW[dd]AW[ec]AW[eb]AW[db]AB[dc]AB[ed]AB[fd]AB[fc]AB[fb]AB[gc]AW[ef]AW[ff]AW[fe]AW[gd]AW[hc]AW[hb]AW[ga]AW[bb]LB[bb:1]C[White just played 1 hoping to kill your corner. Thwart his nefarious machinations.]AW[hd]AP[goproblems]
(;B[ac];W[fa]
(;B[ba];W[ab])
(;B[ea];W[da];B[ca];W[ea]))
(;B[ba];W[ab])
(;B[ea];W[ad]
(;B[da];W[eb])
(;B[ac];W[bc];B[da];W[eb]))
(;B[ab];W[ac];B[ba];W[aa]C[Only a ko.])
(;B[ad];W[fa]
(;B[ca];W[ea];B[ab]C[RIGHT])
(;B[ea];W[da];B[ca];W[ea];B[ab];W[ba])
(;B[ab];W[ca];B[ba];W[aa]C[Ko is not good enough.]))
(;B[da];W[ad]
(;B[ea];W[eb])
(;B[ac];W[bc];B[ea];W[eb]))
(;B[ca];W[ad])
(;B[bc];W[ac]
(;B[da];W[ad];B[ea];W[eb])
(;B[ea];W[ad];B[da];W[eb])))