this is my first problem.it's really easy.i hope there won't be to much problems with it since it's my first time using the problem editor.
(;AW[ra]AW[rb]AW[sb]AW[qb]AW[pb]AW[oc]AW[pd]AW[qd]AB[qc]AW[rd]AB[sd]AW[sc]AB[re]AB[qe]AB[pe]AB[se]AB[od]AB[nd]AB[mc]AB[nb]AB[ob]AB[pa]C[black to play and kill]AP[goproblems]
(;B[rc];W[pc])
(;B[qa];W[oa]
(;B[pa];W[pc])
(;B[pc];W[rc];B[pc];W[pa]))
(;B[nc];W[pc])
(;B[pc];W[rc];B[pc]C[RIGHT]))