The Ruy Lopez (Spanish game)

The Berlin Defense is a chess opening that begins with the moves 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6. This opening is part of the larger family of Ruy Lopez openings that feature the moves 1. e4 e5 2. Nf3. The Berlin Defense specifically has the knight move Nf6 as Black's third move and develops the knight actively toward the center. This opening leads to dynamic play and complex positions with chances for both sides to attack.