The Schliemann Defense, Classical Variation is a variation of the Ruy Lopez, catalogued as ECO C63. The line runs 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 d5 6. Nxe5 dxe4 7. Nxc6 Qg5, reaching the position shown below after 14 half-moves.
Black holds the centre with pawns on e4. White is ahead in development, with three minor pieces out to Black's one, and White is up a pawn of material. It is White to move after seven moves. Black’s e-file pawn is isolated.
On the Ruy Lopez generally: One of the oldest and most classical openings. White develops rapidly and puts pressure on Black's center.
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The Schliemann Defense, Classical Variation goes 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 d5 6. Nxe5 dxe4 7. Nxc6 Qg5. It is a variation of the Ruy Lopez and is catalogued as ECO C63.
The Schliemann Defense, Classical Variation is ECO C63. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Ruy Lopez.
Stockfish evaluates the position after 1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 fxe4 5. Nxe4 d5 6. Nxe5 dxe4 7. Nxc6 Qg5 at +0.68 at depth 18, which is a small but real edge for White. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.
Black holds the centre with pawns on e4. White is ahead in development, with three minor pieces out to Black's one, and White is up a pawn of material. It is White to move. Black’s e-file pawn is isolated.