Scandinavian - Richter variation
1. e4 d5 2. exd5 Nf6 3. d4 g6
White plays the king's pawn to e4. Black plays the queen's pawn to d5. White captures on d5 with the king's pawn.
Black develops the knight to f6. White moves the queen's pawn to d4. Black moves the g-pawn to g6.