(;AW[bb]AW[bc]AB[ad]AB[bd]AB[ce]AB[bf]AW[cd]AW[dd]AW[dc]AB[cc]AB[cb]AB[db]AB[eb]AW[ca]AW[fa]AW[fb]AW[fc]AP[goproblems]
(;B[ba]
(;W[aa];B[ac];W[da];B[ab];W[ea];B[ba]C[RIGHT])
(;W[ea];B[ab];W[aa];B[ac];W[da];B[ba]C[RIGHT]))
(;B[ab];W[ba];B[ac];W[da])
(;B[ac];W[ba]C[Black cannot prevent White from connecting due to lack of liberties.]))