French - Burn variation
1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4
White plays the king's pawn to e4. Black advances the king's pawn to e6. White advances the queen's pawn to d4.
Black plays the queen's pawn to d5. White develops the knight to c3. Black develops the knight to f6.
White develops the dark-squared bishop to g5. Black captures on e4 with the queen's pawn.