(;AP[goproblems]AW[rb]AB[qb]AW[pb]AW[pa]AW[qc]AW[qd]AW[pd]AB[pc]AB[oc]AB[ob]AB[nc]AB[od]AW[oe]AW[ne]AW[nd]AB[md]AW[mc]AW[lc]AW[mb]AW[ma]AB[ld]AB[kd]AB[kc]AB[kb]AB[lb]MA[nc]MA[oc]MA[od]MA[pc]MA[ob]TR[ma]TR[mc]TR[mb]TR[lc]C[Black to kill and survive](;B[na]C[];W[qa]C[CHOICE](;B[la];W[oa];B[nb]C[Very well!RIGHT])(;B[nb];W[oa])(;B[oa]))(;B[qa];W[ra](;B[la];W[oa])(;B[nb];W[oa];B[la];W[na])(;B[na];W[oa];B[la];W[nb])(;B[oa];W[na];B[la];W[nb]))(;B[oa];W[qa];B[la]C[Seki.])(;B[nb];W[oa](;B[qa];W[na])(;B[la];W[na]))(;B[la];W[oa](;B[nb];W[na])(;B[na];W[nb])(;B[qa];W[nb]))(;B[ka];W[nb](;B[oa];W[na])(;B[la];W[oa])(;B[qa];W[oa])(;B[na];W[oa]))(;B[ra];W[nb](;B[oa];W[na])(;B[qa];W[oa])(;B[na];W[oa])(;B[rc];W[qa](;B[sb];W[sa];B[oa];W[na])(;B[oa];W[na]))(;B[la];W[oa])))