A fun and potentially dangerous defense. Black allows White to control the centre with pawns, which will then be destroyed. A defense much like The French in the sense that its based on letting white advance and then watching their positions collapase. It almost always requires you move the same piece twice, the knight, as shown below. As well it restricts the movement of blacks white squared bishop. A counter attacker reply to 1. e4

1. e4 Nf6
normally continued
2. e5 Nd5
3. d4

Chess Openings