  We outline a full non-perturbative proof of planar (large-N) equivalence
between bosonic correlators in a theory with Majorana fermions in the adjoint
representation and one with Dirac fermions in the two-index (anti)symmetric
representation. In a particular case (one flavor), this reduces to our previous
result - planar equivalence between super-Yang--Mills theory and a
non-supersymmetric ``orientifold field theory.'' The latter theory becomes
one-flavor massless QCD at N=3.
