Sicilian - Nimzovich variation
1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5
White pushes the king's pawn to e4. Black advances the c-pawn to c5. White develops the knight to f3.
Black develops the knight to c6. White advances the queen's pawn to d4. Black captures on d4 with the c-pawn.
White captures with the knight on d4. Black plays the queen's pawn to d5.