Vienna Game: Mieses Variation, Erben Gambit

The Vienna Game: Mieses Variation, Erben Gambit is a chess opening classified under ECO code C26 in the Open Games & French Defense family, beginning with 1.e4 e5 or 1.e4 e6, including the Italian Game, Ruy Lopez, and French Defense. It is reached after 4 moves: 1. e4 e5 2. Nc3 Nf6 3. g3 d5 4. exd5 c6. The resulting position leaves white to move.