Ruy Lopez: Classical Defense, Benelux Variation

The Ruy Lopez: Classical Defense, Benelux Variation is a chess opening classified under ECO code C64 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. Bb5 Nf6 4. O-O Bc5 5. c3 O-O 6. d4 Bb6. The resulting position leaves white to move.