The Berlin Defense, Winawer Attack is a variation of the Ruy Lopez, catalogued as ECO C67. The line runs 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nd4, reaching the position shown below after 17 half-moves.
White holds the centre with pawns on e5. Development is level at two minor pieces each. It is Black to move after nine moves. White has castled while Black’s king is still uncommitted; Black has doubled pawns on the c-file; Black’s a-file pawn is isolated; Black has the bishop pair.
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 Berlin Defense, Winawer Attack goes 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nd4. It is a variation of the Ruy Lopez and is catalogued as ECO C67.
The Berlin Defense, Winawer Attack is ECO C67. 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 Nf6 4. O-O Nxe4 5. d4 Be7 6. Qe2 Nd6 7. Bxc6 bxc6 8. dxe5 Nb7 9. Nd4 at +0.41 at depth 18, which is a slight pull for White, within normal opening margins. 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.
White holds the centre with pawns on e5. Development is level at two minor pieces each. It is Black to move. White has castled while Black’s king is still uncommitted; Black has doubled pawns on the c-file; Black’s a-file pawn is isolated; Black has the bishop pair.