(;AB[bb]AB[cb]AB[ac]AB[eb]AB[ec]AB[ed]AB[dd]AW[fa]AW[fb]AW[fc]AW[fd]AW[ee]AW[de]AW[ce]AW[cd]AW[bd]AW[bc]AP[goproblems]
(;B[cc];W[da]
(;B[db];W[ea]
(;B[ca];W[ad];B[ab]C[RIGHT])
(;B[ab]C[RIGHT];W[ca];B[ba]C[RIGHT]))
(;B[ea];W[db];B[dc];W[ab];B[aa];W[ca]C[CHOICE]))
(;B[ab];W[ea];B[da];W[cc]
(;B[db];W[ba]C[CHOICE])
(;B[ba];W[db]C[CHOICE]))
(;B[ea];W[cc]
(;B[ab];W[db];B[da];W[ca];B[ba];W[dc]C[CHOICE])
(;B[dc];W[da];B[db];W[ab]
(;B[aa];W[ca]C[CHOICE])
(;B[ca];W[aa]C[CHOICE])))
(;B[da];W[cc];B[dc];W[ea]C[CHOICE]))