head-to-head
      adj 1: involving two persons; intimately private; "a tete-a-tete
             supper"; "a head-to-head conversation" [syn: tete-a-tete]
      2: inconclusive as to outcome; close or just even in a race or
         comparison or competition; "as they approached the finish
         line they were neck and neck"; "the election was a nip and
         tuck affair" [syn: neck and neck, nip and tuck]
      adv : even or close in a race or competition or comparison; "the
            horses ran neck and neck"; "he won nip and tuck" [syn:
            neck and neck, nip and tuck]