(;AW[ra]AW[rb]AW[rc]AB[qa]AB[qb]AB[qd]AB[qe]AB[qc]AB[re]AB[sd]AB[sb]AW[rf]AW[qf]AW[rh]AW[pf]AW[pe]AW[pd]AW[pc]AW[pb]AW[nb]C[Black to make life.]AP[goproblems]
(;B[sc];W[sf]
(;B[se]C[Good. This is a seki.RIGHT])
(;B[rd]C[White can tenuki - Black is already dead there.])
(;B[sa]C[White can tenuki - Black is already dead there.]))
(;B[rd]C[White can tenuki - Black is already dead there.])
(;B[se]C[];W[sf]
(;B[sc]C[Good. This is a seki.RIGHT])
(;B[sa]C[White can tenuki - Black is already dead there.])
(;B[rd]C[White can tenuki - Black is already dead there.]))
(;B[sa]C[White can tenuki - Black is already dead there.]))