Chess Opening Theory/1. e4/1...e5/2. f4/2...exf4/3. Nf3/3...g5/4. Bc4/4...g4/5. Ne5/5...Qh4/6. Kf1/6...Nc6

Salvio Gambit: Viennese Variation King's Gambit Salvio Gambit, Viennese Variation This accurate reply, named the Viennese Variation, deliberately gives up the f7 pawn to attempt to launch an attack on the White king on f1. White has multiple replies to this. 7. Nxf7 seems tempting — it wins the f7 pawn and traps the rook on h8. However, Black can start an attack on White's king with 7...b5! 8. Bb3 (8. Nxh8? bxc4-+ and Black is crushing white despite being down an exchange) Nh6! 9. Nxh8 Bc5! and White's king is struggling to survive. 7. Bxf7+ takes f7 with check but after 7...Kd8 8. d4 Nxe5 9. dxe5 Nh6 10. Bc4 Bc5 11. Qe1 g3! Black has a crushing attack on White's king that is survivable only with precision. 7. Nxc6 gives up the attack on f7 and instead trades knights, but it ruins the Salvio Gambit's idea of saving the knight and allowing Qh4+ to attack f7. After 7...dxc6, Black is better and simply fine. 7. d4 is the most accurate reply, taking the center and defending the knight. Black has a slightly better position after 7...Nxe5 8. dxe5 f3!, where 9. Bf4 is necessary because 9. gxf3?? leads a crushing attack on the White king with 9...Bc5-+.