1. e4 e5 2. Nf3 d6 3. d4 f5 4. Nc3 - Philidor Defense: Philidor Countergambit, Zukertort Variation

Philidor Defense: Philidor Countergambit, Zukertort Variation

Coups: 1. e4 e5 2. Nf3 d6 3. d4 f5 4. Nc3