King's Gambit Accepted: Greco Gambit
1.e4 e5 2.f4 exf4 3.Nf3 d6 4.Bc4 h6 5.d4 g5 6.h4 Bg7
What Is The Greco Gambit?
The pawn on f4 is the whole argument. Black plays 3...d6 first to poison e5, so the standard Kieseritzky resource of Ne5 after ...g4 drops a piece. That buys the time to build the holding chain with 4...h6 and 5...g5. Those pawns hold the extra pawn on f4.
White's 5.d4 takes the full centre and prepares Bxf4, and 6.h4 hits g5 at once. 6...Bg7 meets it: h6 already guards g5, and the bishop covers h8 and eyes d4 down the long diagonal, so the trades on g5 and h8 leave it aimed at White's centre. Do not read the advanced kingside pawns as a doomed king. The cost is time, not safety: Black develops late, so White must open the f-file and the centre before Black consolidates.
How Do You Beat The King's Gambit Accepted: Greco Gambit?
No usable data exists here, so this is the plan. Both sides have committed heavily: you have the extra pawn and a fianchettoed bishop, and White has pushed h4 to lever the g5 pawn and open lines toward your king.
The g7 bishop is your best defender and your best attacker, so any plan that trades it off is a plan that helps White. Keep it, castle if you safely can, and look for the moment to return a pawn to kill the initiative. White's compensation is temporary and entirely based on the open f-file and the loose g-pawn. Neutralise both and the extra material decides it.