(;SZ[13]AB[bb]AB[bc]AB[ad]AB[cd]AB[dd]AB[dc]AB[ec]AB[ea]AW[ca]AW[cb]AW[cc]AW[bd]AW[be]AW[ce]AW[cg]AW[ef]AW[fe]AW[fd]AW[fb]AW[gb]AP[goproblems]
(;B[da];W[ab]
(;B[ba];W[ac];B[db];W[cb];B[aa];W[ac]C[CHOICE])
(;B[ac];W[ba]C[koCHOICE]))
(;B[ba];W[ab]
(;B[ac];W[ae]C[CHOICE])
(;B[da];W[ac];B[aa];W[ac];B[db];W[cb]C[CHOICE])
(;B[db];W[ac]
(;B[da];W[cb];B[aa];W[ac]C[CHOICE])
(;B[aa];W[ac];B[da];W[cb]C[CHOICE])))
(;B[ab];W[ae]
(;B[db];W[ac];B[da]C[RIGHT])
(;B[da];W[ac];B[db]C[RIGHT]))
(;B[db];W[ab]
(;B[ac];W[ba]C[koCHOICE])
(;B[ba];W[ac]
(;B[da];W[cb];B[aa];W[ac]C[CHOICE])
(;B[aa];W[ac];B[da];W[cb]C[CHOICE]))))