Vienna - Hamppe-Allgaier gambit - Alapin variation
1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5 d6
White plays the king's pawn to e4. Black plays the king's pawn to e5. White develops the knight to c3.
Black develops the knight to c6. White moves the f-pawn to f4. Black captures on f4 with the king's pawn.
White jumps the knight to f3. Black moves the g-pawn to g5. White pushes the h-pawn to h4.
Black plays the g-pawn to g4. White jumps the knight to g5. Black moves the queen's pawn to d6.