Sicilian - Pin - Koch variation
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5
White advances the king's pawn to e4. Black pushes the c-pawn to c5. White develops the knight to f3.
Black pushes 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 f6. White transfers the knight to c3.
Black develops the dark-squared bishop to b4. White advances the king's pawn to e5.