(;AW[bc]AW[cc]AW[bd]AW[db]AW[eb]AB[fa]AB[fb]AB[fd]AB[fc]AB[dc]AB[dd]AB[cd]AB[ce]AB[be]AB[cf]AB[bg]C[before w adds another stone... (b to win a ko once)]AP[goproblems]
(;B[ab];W[bb]
(;B[ea];W[da]
(;B[ba];W[ac];B[ec];W[aa]C[nice ko! :)RIGHT])
(;B[ec];W[ba])
(;B[ad];W[ac];B[ba];W[aa]C[after you win once wa15 and it becomes the right ko]))
(;B[ba];W[ac])
(;B[ad];W[ac]))
(;B[ad];W[bb]
(;B[ea];W[da]
(;B[ab];W[ac];B[ba];W[aa]C[after you win once wa15 and it becomes the right ko])
(;B[ba];W[ca];B[ab];W[aa]C[have to win twice]))
(;B[ab];W[ac])
(;B[ba];W[ca];B[ab];W[aa]C[have to make all approaching moves while doing the ko, that's hard o_O]))
(;B[bb];W[ab])
(;B[ba];W[ca]
(;B[ad];W[bb];B[ab];W[aa]C[have to make all approaching moves while doing the ko, that's hard o_O])
(;B[bb];W[ab])
(;B[ab];W[ac])
(;B[ea];W[bb]))
(;B[ca];W[ba];B[bb];W[ab];B[aa]C[w has some serious local threats])
(;B[ea];W[ba])
(;B[da];W[ea]))