(;AW[aa]AW[ba]AW[ab]AW[bb]AW[cc]AW[dc]AW[db]AW[eb]AW[fb]AW[fa]AB[ac]AB[bc]AB[cd]AB[be]AB[dd]AB[ed]AB[fc]AB[gb]AB[ga]AB[hd]AP[goproblems]
(;B[da];W[ca];B[cb];W[bb]
(;B[ca];W[ba]
(;B[ab];W[ea];B[ca]C[White is dead! Nice job!RIGHT])
(;B[ec];W[ea]
(;B[ab];W[ca]C[White is alive!])
(;B[ca];W[ab]C[White is alive!]))
(;B[aa];W[ea]
(;B[ab];W[ca]C[White is alive!])
(;B[ca];W[ab]C[White is alive!])))
(;B[ba];W[ca]C[Only ko, black can do better!])
(;B[ab]
(;W[ca];B[aa];W[ea];B[ba]C[White is dead! Nice job!RIGHT])
(;W[ba]
(;B[aa];W[ca];B[cb]C[White is dead! Nice job!RIGHT])
(;B[ca];W[ea];B[ca]C[RIGHT])))
(;B[aa];W[ba]
(;B[ab];W[ca];B[cb]C[White is dead! Nice job!RIGHT])
(;B[ca];W[ea]
(;B[ab];W[ca]C[White is alive!])
(;B[ca];W[ab]C[White is alive!]))))
(;B[ca];W[da];B[cb];W[bb]C[White is alive!])
(;B[cb];W[ca]C[White is alive!]))