(;AW[sb]AW[rb]AW[qc]AW[pc]AW[ob]AW[nb]AW[nc]AB[rc]AB[rd]AB[qd]AB[pd]AB[oc]AB[oe]AB[ne]AB[md]AB[mc]AB[mb]AB[na]AB[kb]AP[goproblems] (;B[pa];W[oa] (;B[qb];W[od] (;B[ra];W[pb] (;B[qa];W[sa];B[qa];W[nd];B[qb]C[RIGHT]) (;B[nd];W[qa])) (;B[nd];W[ra] (;B[sc];W[ma];B[oc]C[ko]) (;B[oc]C[ko]))) (;B[pb];W[od];B[nd];W[ma];B[oc]C[ko])) (;B[qa] (;W[pa];B[qb];W[od] (;B[ra];W[pb];B[nd]C[RIGHT])) (;W[qb]C[CHOICE] (;B[pa];W[oa] (;B[nd];W[od]C[ko]) (;B[ra];W[od];B[nd];W[oc]C[seki])) (;B[oa];W[pa]C[ko]))) (;B[pb] (;W[qb] (;B[pa];W[qa]) (;B[oa];W[pa]))) (;B[qb];W[pb];B[qa];W[ra]) (;B[oa];W[pa]) (;B[ra];W[qa] (;B[pa];W[pb]) (;B[oa];W[pa];B[pb];W[qb];B[ma];W[od])))