The Hanstein Gambit, named after a German chess master and journalist Wilhelm Hanstein, is one of the more subdued responses to the King’s Knight Gambit, as Black typically refrains from advancing the pawn to g4. A similar variant, known as the Phillidor’s Gambit, belongs to this category as well – White usually opts for a non-castling move and instead attacks Black’s structure with the pawn 5. h4.