(;AB[ra]AB[rb]AB[rc]AB[qd]AB[qe]AB[pe]AB[oe]AB[ne]AB[me]AB[ld]AB[lc]AB[kb]AB[mb]AB[ma]AB[na]AB[oa]AW[lb]AW[mc]AW[md]AW[nd]AW[od]AW[pd]AW[nb]AW[ob]AW[qa]AW[qb]AW[qc]C[Black to Kill.]AP[goproblems]
(;B[la]
(;W[oc]
(;B[pb]C[RIGHT])
(;B[pa];W[pb]))
(;W[pa];B[pc];W[pb];B[oc]C[RIGHT]))
(;B[pb];W[pc]
(;B[pa];W[la])
(;B[la];W[pa])
(;B[nc];W[pa])
(;B[oc];W[pa]))
(;B[pc];W[oc]
(;B[pb];W[pa])
(;B[pa];W[pb]))
(;B[oc];W[pa]
(;B[pc];W[la])
(;B[la];W[pc]))
(;B[pa];W[pb];B[la];W[oc])
(;B[ka];W[pa]
(;B[la];W[pc])
(;B[pc];W[la])))