Home › Openings › Philidor Defense › Philidor Defense: Philidor Countergambit Philidor Defense: Philidor Countergambit, del Rio Attack ECO C41 · 1. e4 e5 2. Nf3 d6 3. d4 f5 4. dxe5 fxe4 5. Ng5 d5 6. e6 Related variationsPhilidor Defense: Philidor Countergambit, Zukertort VariationPhilidor Defense: Philidor Countergambit, Berger Variation Practice this opening · Play against the computer