The Vienna – Falkbeer Variation arises after 1.e4 e5 2.Nc3 Nf6. ECO code: C26.

Named after Ernst Falkbeer. Black develops the knight to f6, attacking e4 and preparing ...d5. This is the most common and active response to the Vienna Game, often leading to the Vienna Gambit (3.f4) or sharp tactical play.