(;AB[ba]AB[cb]AB[cc]AB[bc]AB[bd]AB[bf]AB[af]AW[ca]AW[da]AW[db]AW[dc]AW[dd]AW[cd]AW[ce]AW[cf]AW[cg]AW[ag]AW[bg]AW[ab]MA[ab]C[White just played the marked stone. Black to live.]AP[goproblems]
(;B[be];W[bb]
(;B[ac];W[aa];B[ba]C[Good job ! : )RIGHT])
(;B[ad];W[aa]C[CHOICE];B[ac];W[ba]C[CHOICE])
(;B[ae];W[aa]C[CHOICE];B[ac];W[ba]C[CHOICE])
(;B[aa]))
(;B[bb];W[be]
(;B[ae];W[ad]C[CHOICE])
(;B[ad];W[ae]C[CHOICE])
(;B[ac];W[ae]C[CHOICE])
(;B[aa];W[ae]C[CHOICE]))
(;B[ac];W[be]
(;B[ae];W[ad]C[CHOICE])
(;B[bb];W[ae]C[CHOICE])
(;B[ad];W[ae]C[CHOICE])
(;B[aa];W[ae]C[CHOICE]))
(;B[aa];W[bb];B[ba];W[be]
(;B[ae];W[ad]C[CHOICE])
(;B[ac];W[ae]C[CHOICE])
(;B[ad];W[ae]C[CHOICE]))
(;B[ad];W[be]
(;B[ae]C[CHOICE];W[ac]C[CHOICE])
(;B[bb];W[ae]C[CHOICE]))
(;B[ae];W[be];B[ad];W[ac]C[CHOICE]))