(;AW[cc]AW[cd]AW[be]AW[de]AW[df]AW[eg]AW[fg]AW[hg]AW[he]AW[ie]AW[id]AW[jd]AW[kc]AW[lc]AB[ec]AB[dd]AB[ee]AB[ef]AB[gd]AB[hd]AB[ic]AB[jc]C[White to get something from black.]
(;W[db];B[eb]C[Not so simple.])
(;W[jb];B[ib]C[Not so simple.])
(;W[eb];B[fb]
(;W[db]C[Not so simple.])
(;W[dc]
(;B[ed]C[CHOICE];W[ib]
(;B[hb]C[CHOICE];W[jb]
(;B[hc]
(;W[da];B[ge];W[fc]C[Black's group is killed. B H17 is wrong. (Thanks for BartTM)RIGHT])
(;W[db];B[ge]
(;W[fc]C[Black's group is killed. B H17 is wrong. (Thanks for BartTM)RIGHT])
(;W[gf];B[ff];W[fa];B[gb])
(;W[fa];B[ga]
(;W[ff];B[fe];W[fc];B[gc];W[gb]C[Black H17 is wrong. You can kill black's group.])
(;W[fc];B[gc];W[gb]C[Black H17 is wrong. You can kill black's group.]))
(;W[ga];B[fc]
(;W[gb];B[fa];W[ha]C[Black H17 is wrong. You can kill black's group.])
(;W[fa];B[gb]C[Black H17 is wrong. You can kill black's group.]))))
(;B[gc]
(;W[da];B[fa]C[White reduce Black in sente.RIGHT])
(;W[db];B[fa]C[White reduce Black in sente.RIGHT]))
(;B[db];W[hc];B[gc];W[ha];B[ic]C[RIGHT]))
(;B[jb]C[CHOICE];W[gb]
(;B[gc]C[CHOICE];W[fa];B[fc]
(;W[hb];B[db]
(;W[hc];B[ea]
(;
(;W[fe];B[cb];W[bb];B[ca]C[RIGHT])
(;W[cb];B[ge]C[RIGHT]))
(;W[cb];B[ge]C[Black lives small.RIGHT])
(;W[fe];B[cb];W[bb];B[ca]C[Black lives small.RIGHT]))
(;W[ea];B[ga];W[ha];B[da];W[ga];B[hc]C[White group dead.]))
(;W[db];B[hb];W[ga];B[ha];W[ea]C[RIGHT];B[ge]C[You can do better. (Play H17 instead of F19.)RIGHT]))
(;B[hb]C[CHOICE];W[fc]C[RIGHT])
(;B[db]C[CHOICE];W[hc]C[RIGHT])
(;B[fc]C[CHOICE]
(;W[hc];B[db];W[cb];B[ea];W[ge]C[Black can only get a ko.RIGHT];B[gc];W[hb];B[fe]C[Black lives small.RIGHT])
(;W[fa];B[hb];W[db];B[gc];W[ga];B[ha];W[ea];B[ge]C[You can do better. (Play H17 instead of F19.)RIGHT]))
(;B[ga]C[CHOICE];W[fc];B[ea]
(;W[fa]MA[fb]C[RIGHT]C[Ko, you get it.RIGHT])
(;W[hc];B[ia];W[fa]TR[hc]C[You have used up some ko trearts.]))))
(;B[db]C[CHOICE]
(;W[fc]C[]
(;B[ed]C[];W[gb];B[ea]
(;W[ib]
(;B[jb];W[hc];B[gc];W[hb];B[ga]
(;W[kb]C[RIGHT])
(;W[ja]C[RIGHT]))
(;B[hc];W[jb]C[RIGHT])
(;B[hb];W[jb];B[hc]C[RIGHT]))
(;W[hc];B[hb]
(;W[ib];B[gc];W[jb]C[RIGHT])
(;W[gc];B[fd];W[ib];B[ga];W[jb]C[RIGHT])))
(;B[ea];W[ed];B[gc];W[eb]C[Bad for black...]))
(;W[ed];B[fc]
(;W[cb];B[ea];W[fe])
(;W[fe]))))))