(;AB[cb]AB[cc]AB[cd]AB[be]AB[ae]AW[bf]AW[cf]AW[ce]AW[dd]AW[db]AW[ec]AW[fb]C[How about a ko?]AW[bh]AP[goproblems]
(;W[ca];B[ba]
(;W[bb];B[da]
(;W[ab];B[bc]C[:(])
(;W[bc];B[ab];W[ac];B[bd];W[aa]C[Nice..RIGHT]MA[ab]))
(;W[da];B[ab]C[:(])
(;W[ab];B[ac]
(;W[bb];B[bc]C[:(])
(;W[bc];B[bd];W[ad]MA[ac]C[Nice..RIGHT]))
(;W[bc];B[ab];W[bb];B[da]
(;W[ac];B[bd];W[aa]C[Nice..RIGHT])
(;W[bd];B[ad]C[:(]))
(;W[ac];B[ab]C[:(]))
(;W[ba];B[ca]
(;W[bb];B[bc]C[:(])
(;W[ab];B[ac]
(;W[bc];B[bb]C[:(])
(;W[bb];B[bc]C[:(]))
(;W[bc];B[bb]C[:(])
(;W[ac];B[ab]C[:(]))
(;W[ab];B[ac]
(;W[bc];B[bb]
(;W[ad];B[ca]C[:(])
(;W[ca];B[bd]C[:(]))
(;W[bb];B[bc]C[:(])
(;W[ca];B[bb]C[:(]TR[bd]TR[ba])
(;W[ba];B[ca]
(;W[bc];B[bb]C[:(])
(;W[bb];B[bc]C[:(])))
(;W[ac];B[ab]
(;W[bb];B[bc]
(;W[ba];B[ca]C[:(])
(;W[aa];B[ca]C[:(]))
(;W[ba];B[ca]C[:(])
(;W[ca];B[ba]C[:(])
(;W[bc];B[bb]C[:(]))
(;W[da];B[ab]
(;W[ba];B[ca]C[:(])
(;W[ca];B[ba]C[:(])
(;W[bb];B[bc]C[:(]))
(;W[af];B[ac]C[:(])
(;W[bb];B[ba]
(;W[ab];B[bc]C[:(])
(;W[bc];B[ab];W[ac];B[bd];W[aa]C[Nice..RIGHT]MA[ab]))
(;W[bc];B[bb]
(;W[ac];B[ab]C[:(])
(;W[ca];B[ac]C[:(]TR[bd]TR[ba])
(;W[ab];B[ac]
(;W[ad];B[ca]C[:(])
(;W[ca];B[bd]C[:(])))
(;W[bd];B[bc]C[:(])
(;W[dc];B[ab]C[:(]))