Sicilian - Szen (`anti-Taimanov') variation
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5
White moves the king's pawn to e4. Black advances the c-pawn to c5. White develops the knight to f3.
Black moves the king's pawn to e6. White plays the queen's pawn to d4. Black captures on d4 with the c-pawn.
White captures with the knight on d4. Black develops the knight to c6. White jumps the knight to b5.