(;C[wA16 was a nice looking move (almost anything else works too) presenting a possible a18 attack: w to live]AW[ad]AW[bd]AW[bc]AW[cc]AW[db]AW[eb]AB[fa]AB[fb]AB[fc]AB[fd]AB[dc]AB[dd]AB[cd]AB[be]AB[ce]AB[cf]AB[bg]AB[ab]AP[goproblems]
(;W[ea];B[ca]
(;W[bb];B[ba];W[cb]C[nice :)RIGHT])
(;W[ba];B[bb];W[cb];B[aa]C[nice :)RIGHT])
(;W[cb]C[nice! :)RIGHT]))
(;W[bb];B[ea]
(;W[da];B[ba];W[ca];B[ec];W[aa]C[ko!])
(;W[ca];B[da];W[aa];B[ba]C[ko!]))
(;W[ba];B[cb]MA[bb]MA[da]C[miai!])
(;W[ca];B[bb])
(;W[cb];B[ea]MA[ba]MA[da])
(;W[da];B[bb]))
