Benko gambit
1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. e4 Bxf1 8. Kxf1 g6 9. g3
White advances the queen's pawn to d4. Black develops the knight to f6. White pushes the c-pawn to c4.
Black plays the c-pawn to c5. White moves the queen's pawn to d5. Black pushes the b-pawn to b5.
White captures on b5 with the c-pawn. Black moves the a-pawn to a6. White captures on a6 with the b-pawn.
Black develops the light-squared bishop to a6. White develops the knight to c3. Black advances the queen's pawn to d6.
White advances the king's pawn to e4. Black captures with the light-squared bishop on f1. White captures with the king on f1.
Black plays the g-pawn to g6. White advances the g-pawn to g3.