(;AW[be]AW[ad]AW[cd]AW[cc]AW[cb]AB[da]AB[db]AB[dc]AB[dd]AB[ce]AB[bf]AB[af]AB[cf]AW[ab]AP[goproblems]
(;B[ba];W[ca]
(;B[ae]
(;W[bc]
(;B[bd];W[fa]C[White plays a ko threat, please respond at KFORCE]LB[ga:K];B[ga];W[be]LB[gb:K]C['K' if you want to play a non-local ko threat.FORCE]
(;B[bb];W[aa];B[bd]C[Very nice.CHOICERIGHT])
(;B[gb];W[bd]C[No need to play a non-local threat yet.])
(;B[aa];W[bd]))
(;B[bb];W[aa]C[Wasted a threat]))
(;W[bd];B[bb];W[bc];B[ac]C[RIGHT]))
(;B[bb];W[bc];B[ae];W[aa]C[Wasted a threat])
(;B[bc];W[bb])
(;B[bd];W[bc];B[ae];W[bd])
(;B[ac];W[bc];B[ae];W[bd])
(;B[aa]C[Congratulations, you saved white!]))
(;B[bb];W[ba])
(;B[bc];W[bb])
(;B[ae];W[ba];B[bd];W[bc])
(;B[ca];W[ba])
(;B[bd];W[bc])
(;B[ac];W[bc])
(;B[aa];W[ba]))