The problem of counting planar perfect matchings has its roots in statistical mechanics and chemistry, where the original question was: If diatomic molecules are adsorbed on a surface, forming a single layer, how many ways can they be arranged?
Problem brojanja planarnih savršenih uparivanja ima svoje korene u statici i hemiji, gde je originalno pitanje: Ako se diatomiski molekuli apsorbuju na površini, formirajući jedan sloj, na koliko načina se oni mogu organizovati?