  We present a method to resolve combinatorial issues in multi-particle final
states at hadron colliders. The use of kinematic variables such as MT2 and
invariant mass significantly reduces combinatorial ambiguities in the signal,
but at a cost of losing statistics. We illustrate this idea with gluino pair
production leading to 4 jets $+\met$ in the final state as well as $t\bar{t}$
production in the dilepton channel. Compared to results in recent studies, our
method provides greater efficiency with similar purity
