Ruy Lopez: Schliemann Defense, Jaenisch Gambit Accepted

A sharp and aggressive chess opening that leads to imbalanced positions and offers chances for both sides to play for a win.

The Schliemann Defense, Jaenisch Gambit Accepted is a highly aggressive and double-edged opening that can lead to exciting and imbalanced positions. It is a variation of the Ruy Lopez, one of the oldest and most classical of all chess openings. The main idea behind this gambit is to challenge White's center and create counterplay on the kingside as quickly as possible.

In this opening, Black sacrifices a pawn on f5 to open lines and create attacking chances. White can accept the gambit by capturing the pawn, leading to a position where both sides have their chances. Black will often follow up with moves like Nf6, d6, and Be7, aiming to castle kingside and put pressure on White's center.

White, on the other hand, will try to consolidate their extra pawn and develop their pieces harmoniously. They can choose between various setups, such as d3 and Nc3, or d4 and Nbd2, depending on their preferred style of play.

The Schliemann Defense, Jaenisch Gambit Accepted is not as popular as other Ruy Lopez variations, but it has been employed by strong grandmasters like Alexander Morozevich and Teimour Radjabov. It is an excellent choice for players who enjoy sharp, tactical battles and are not afraid to take risks in the opening.