Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nf6/3. Nxe5/3...Nc6/4. Nxc6/4...dxc6/5. e5/5...Ne4

=Stafford Gambit=

5...Ne4
Rather than moving their knight back, Black plants his knight in the middle of the board. It aims at the weak f-pawn and White is tempted to remove the knight from the square. The inconspicuous move actually sets up a trap if White pushes their /6. d3/ or /6. f3/ pawn. Instead, a good response for White is 6. d4, creating a strong center in the middle of the board.