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