Latvian counter-gambit
1. e4 e5 2. Nf3 f5
White moves the king's pawn to e4. Black pushes the king's pawn to e5. White develops the knight to f3.
Black plays the f-pawn to f5.
White moves the king's pawn to e4. Black pushes the king's pawn to e5. White develops the knight to f3.
Black plays the f-pawn to f5.