Ruy Lopez: Open (variation 15)

This opening is a sharp and dynamic variation of the Ruy Lopez, focusing on rapid development and control of the center.

The opening begins with a traditional e4 e5 opening, followed by Nf3 Nc6 and Bb5, putting pressure on the knight on c6. After a6 and Ba4, Black plays Nf6, preparing to challenge White's center. White then castles kingside, allowing Black to capture the e4 pawn with the knight. White responds with d4, striking at the center and opening up lines for the pieces. Black continues with b5, attacking the bishop on b3 and gaining space on the queenside. White plays Bb3, maintaining the pin on the knight on c6. Black then plays d5, solidifying the center and opening up lines for the light-squared bishop. This variation leads to complex positions with chances for both sides, requiring precise play and good understanding of pawn structures.