(;AB[ba]AB[bb]AB[ac]AB[cc]AB[dc]AB[cd]AW[bc]AW[bd]AW[ae]AW[ce]AW[de]AW[cf]AW[ed]AW[ec]AW[gd]AW[id]AW[ic]AW[ib]AB[eb]LB[ca:A]LB[ba:B]LB[eb:C]C[Black plays at B instead of A - White think it's dead in gote and passes. Black plays at C. Was white right? Can you kill?]AP[goproblems]
(;W[ab];B[da]
(;W[cb]
(;B[fb];W[fa];B[gb];W[ga];B[ha];W[hb];B[ea];W[ga]C[Exaclly.. No mistake by white! :)CHOICERIGHT])
(;B[gb]
(;W[fa]
(;B[fb];W[ga];B[ha];W[hb];B[ea];W[ga]C[Exaclly.. No mistake by white! :)CHOICERIGHT])
(;B[ga];W[fb];B[fc];W[gc];B[ea];W[fb]C[Exaclly.. No mistake by white! :)CHOICERIGHT]))
(;W[ga];B[fa]C[E19 is the second eye!])
(;W[fb];B[fc]
(;W[gc];B[fa]C[E19 is the second eye!])
(;W[fa];B[gc]
(;W[ga];B[ha];W[hb];B[ea]C[F18 is the second eye!])
(;W[ha];B[ga]C[Black's alive!]))
(;W[ga]
(;B[fa])
(;B[ha]C[Black's alive!])))))
(;W[fb];B[cb]C[Black's alive!]))
(;W[da];B[db]C[Black's alive!])
(;W[fb];B[da]C[Black's alive!]LB[ab:A]LB[cb:B])
(;W[cb];B[db]C[Black's alive!])
(;W[ea];B[fb]
(;W[db];B[cb]C[Black's alive!])
(;W[da];B[db]C[Black's alive!])
(;W[ab];B[da]C[Black's alive!]))
(;W[db];B[da]
(;W[cb];B[ca]
(;W[ab]
(;B[gb]
(;W[fb];B[fc]
(;W[fa];B[gc]
(;W[ga];B[ha];W[hb];B[ea]C[Black's alive!])
(;W[ha];B[ga]C[Black's alive!]))
(;W[gc];B[fa]C[E19 is the second eye!]))
(;W[fa]
(;B[fb];W[ga];B[ha];W[hb];B[ea];W[ga]C[Exaclly.. No mistake by white! :)CHOICERIGHT])
(;B[ga];W[fb];B[fc];W[gc];B[ea];W[fb]C[Exaclly.. No mistake by white! :)CHOICERIGHT]))
(;W[ga];B[fa]C[E19 is the second eye!]))
(;B[fb];W[fa];B[gb];W[ga];B[ha];W[hb];B[ea];W[ga]C[Exaclly.. No mistake by white! :)CHOICERIGHT]))
(;W[fb];B[ab]C[Black's alive!]))
(;W[ab];B[cb]C[Black's alive!])
(;W[fb];B[cb]C[Black's alive!]))
(;W[ca];B[da]
(;W[ab];B[cb]C[Black's alive!])
(;W[cb]C[];B[ab]C[Black's alive!])))