Hawk (Habichd) defence
1. d4 c5 2. d5 Nf6 3. Nf3 c4
White moves the queen's pawn to d4. Black advances the c-pawn to c5. White advances the queen's pawn to d5.
Black develops the knight to f6. White develops the knight to f3. Black advances the c-pawn to c4.