Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bb5/3...f5/4. Nc3/4...fxe4/5. Nxe4/5...Nf6/6. Nxf6/6...Qxf6/7. Qe2/7...Be7

White accepts the gambit with 8. Bxc6, planning to capture on e5 once the guard is removed.

Castling kingside is still sub-optimal due to the ...Nd4 option (compare the position after 6...Qxf6).