(;AB[qa]AB[qb]AB[oa]AB[ob]AB[oc]AB[pd]AB[qd]AB[rd]AW[na]AW[nb]AW[nc]AW[od]AW[nd]AW[pe]AW[qe]AW[re]AW[se]AW[sd]AW[rc]AW[ra]C[Black to Live. (without Ko)]AP[goproblems]
(;B[qc];W[pb]
(;B[sb];W[rb]
(;B[sc];W[sa];B[sc]C[Nice!RIGHT])
(;B[sa];W[sc]))
(;B[rb];W[sb]
(;B[sc]C[Fault. It's a Ko.])
(;B[sa];W[sc]))
(;B[sc];W[sb];B[rb];W[sc]))
(;B[rb];W[qc]
(;B[pc];W[sb]
(;B[sc];W[rc])
(;B[sa];W[sc]))
(;B[sb];W[pb]
(;B[pa];W[pc])
(;B[pc];W[pa])
(;B[sc];W[pc]))
(;B[sa];W[pb]
(;B[sc];W[pc])
(;B[pa];W[pc])
(;B[pc];W[pa]))
(;B[pb];W[sb];B[sa];W[sc]))
(;B[pb];W[qc];B[rb];W[sb];B[sa];W[sc])
(;B[sb];W[qc]
(;B[pc];W[pb];B[pa];W[rb];B[sc];W[pb])
(;B[rb];W[pb]
(;B[pa];W[pc])
(;B[pc];W[pa])
(;B[sc];W[pc]))
(;B[pb];W[rb];B[sc];W[pc])
(;B[sc];W[pc]
(;B[pb];W[rb])
(;B[rb];W[pb])))
(;B[sc];W[sb]
(;B[qc];W[pb];B[rb];W[sc])
(;B[rb];W[qc]
(;B[sa];W[sc])
(;B[pc];W[sc])))
(;B[pc];W[rb])
(;B[sa];W[rb]
(;B[qc];W[pb])
(;B[pb];W[qc])))