Italian Game: Classical Variation, Greco Gambit, Moeller-Therkatz Attack

The Italian Game: Classical Variation, Greco Gambit, Moeller-Therkatz Attack is a chess opening classified under ECO code C54 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 9 moves: 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5. The resulting position leaves black to move.