(;AB[bb]AB[cb]AB[db]AB[fb]AB[gb]AW[hc]AW[hb]AW[fc]AW[fd]AW[dc]AW[dd]AW[bc]AW[bd]AP[goproblems]
(;B[eb];W[ab]
(;B[ba];W[ga];B[fa];W[da]C[CHOICE])
(;B[ga];W[ba];B[ca];W[ea]C[CHOICE])
(;B[da]
(;W[ba];B[ca];W[ac];B[aa];W[ga])
(;W[ga]
(;B[ba];W[fa])
(;B[fa];W[ba];B[ca];W[ac]))))
(;B[ab];W[eb]
(;B[ea];W[ec]C[CHOICE])
(;B[da];W[ba]C[CHOICE]))
(;B[ea];W[ga];B[ab]C[RIGHT])
(;B[ga];W[eb];B[ea];W[ec]C[CHOICE]))