Home › Openings › Philidor Defense › Philidor Defense: Nimzowitsch Variation Philidor Defense: Nimzowitsch Variation, Rellstab Variation ECO C41 · 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 Nxe4 5. Qd5 Related variationsPhilidor Defense: Nimzowitsch Variation, Klein VariationPhilidor Defense: Nimzowitsch Variation, Sokolsky Variation Practice this opening · Play against the computer