Candidate master Lev Zilbermintz [pictured], who was my board 3 at the USATE 2025, disagrees with ArnieChipmunk on the position below, as in Barnes-Morphy, London 1858.
ArnieChipmunk writes that "the engine has effectively killed" 8...d4.
After 10.Bc4, Lev likes 10...Bxe6 11.Bxe6 Qxe6 12.Nxh8 g6.
Worthy of consideration after 10.Bc4 is 10...h5, with the idea of 11...Rh7 while avoiding 11.g4, as in Sinding-West, USATE 2000.