Center Game Halasz Mcdonnell Gambit Intermediate (1.e4 e5 2.d4 exd4 3.f4) in Chess

The “center game halasz mcdonnell gambit intermediate” is an intermediate-level line within the Center Game Halasz–McDonnell Gambit family, built around a central pawn sacrifice to seize initiative. I don’t have a reliably documented, specific move-order for the exact “intermediate” sub-variation name, so the defining feature to look for is the same: an early commitment to open lines in the center after giving up a pawn, aiming for active piece play rather than long-term pawn structure.