Italian Game: Evans Gambit Declined, Showalter Variation

The Italian Game: Evans Gambit Declined, Showalter Variation is a chess opening classified under ECO code C51 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 6 moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bb6 5. a4 a6 6. Nc3. The resulting position leaves black to move.